10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-K

(MARK ONE)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2013

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM            TO            .

COMMISSION FILE NUMBER 000-17297

BTU INTERNATIONAL, INC.

(Exact name of Registrant as specified in its charter)

DELAWARE	04-2781248
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)

23 ESQUIRE ROAD, NORTH BILLERICA, MASSACHUSETTS	01862-2596
(Address of principal executive offices)	(Zip Code)

REGISTRANT’S TELEPHONE NUMBER, INCLUDING AREA CODE: (978) 667-4111

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

Title of Each Class	Name of Each Exchange on which Registered
Common Stock, $0.01 Par Value	NASDAQ Global Market

SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: None.

Indicate by check mark if the registrant is a well-known seasoned issuer (as defined in Rule 405 of the Securities Act).    Yes  ¨    No  x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every interactive data file required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period than the registrant was required to submit and post such files.)    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company (as defined in Rule 12b-2 of the Exchange Act).

Large Accelerated Filer ¨	Accelerated Filer	¨
Non-Accelerated Filer ¨	Smaller Reporting Company	x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

The aggregate market value of the shares of Common Stock, $0.01 par value, of the Company held by non-affiliates of the Company (assuming for these purposes, but without conceding, that all executive officers and directors of the registrant are affiliates of the registrant) was $18,719,827 on June 28, 2013, based upon the closing price on that date on the NASDAQ Global Market.

As of February 27, 2014, the number of shares outstanding of the registrant’s common stock was 9,556,889 shares.

DOCUMENTS INCORPORATED HEREIN BY REFERENCE

Specifically identified portions of the Company’s definitive Proxy Statement for the Company’s 2014 Annual Meeting of Stockholders (the “2014 Proxy Statement”), which 2014 Proxy Statement will be filed with the Securities and Exchange Commission (“SEC”) within 120 days after the end of the fiscal year covered by this report, is incorporated by reference into Part III of this Annual Report on Form 10-K.

BTU INTERNATIONAL, INC.

2013 FORM 10-K ANNUAL REPORT

Table of Contents

	Part I
Item 1	Business	1
Item 1A	Risk Factors	9
Item 1B	Unresolved Staff Comments	13
Item 2	Properties	13
Item 3	Legal Proceedings	13
Item 4	Mine Safety Disclosures	14
	Part II
Item 5	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	15
Item 6	Selected Financial Data	17
Item 7	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 7A	Quantitative and Qualitative Disclosures About Market Risk	26
Item 8	Financial Statements and Supplementary Data	26
Item 9	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	49
Item 9A	Controls and Procedures	49
Item 9B	Other Information	50
	Part III
Item 10	Directors, Executive Officers and Corporate Governance	51
Item 11	Executive Compensation	52
Item 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	52
Item 13	Certain Relationships and Related Transactions, and Director Independence Matters	52
Item 14	Principal Accounting Fees and Services	52
	Part IV
Item 15	Exhibits and Financial Statement Schedules	53

The words or phrases “will likely result,” “are expected to,” “will continue,” “is anticipated,” “may,” “intends,” “believes,” “estimate,” “project” or similar expressions are intended to identify “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements are neither promises nor guarantees but rather are subject to risks and uncertainties described in this report, which could cause actual results to differ materially from those described in the forward-looking statements. Such statements are made pursuant to the “safe harbor” provisions established by the federal securities laws, and are based on the assumptions and expectations of our management at the time such statements are made. Important factors that could cause actual results to differ include, but are not limited to, the condition of the world economy, the timely availability and acceptance of new products in the electronics, semiconductor and alternative energy generation industries, manufacturing problems with our foreign operations in China, the impact of competitive products and pricing, particularly from companies in Asia, and other risks detailed below in Item 1A under the heading “Risk Factors.” Actual results may vary materially. We disclaim any obligation to revise or update this information in order to reflect future events or developments, whether or not anticipated, even if our estimates or expectations change. Accordingly, you should not place undue reliance on any forward-looking statements, which speak only as of the date made.

PART I

ITEM 1. BUSINESS

Overview

BTU International, Inc. (“BTU” or the “Company”), which was founded in 1950, was incorporated as a Delaware corporation in 1981 and is headquartered in North Billerica, Massachusetts. The Company operates as a single business segment called Thermal Processing Capital Equipment. Our business consists of the designing, manufacturing, selling and servicing of thermal processing equipment and related process controls for use in the electronics, alternative energy, automotive and other industries. This includes the supply of solder reflow systems used for surface mount applications in printed circuit board assembly. Thermal processing equipment is used in: low temperature curing/encapsulation; hybrid integrated circuit manufacturing; integrated circuit packaging and sealing; and processing multi-chip modules. In addition, the equipment is used for solar cell processing, sintering nuclear fuel for commercial power generation, as well as brazing and the sintering of ceramics and powdered metals, and the deposition of precise thin film coatings. Our customers are multinational original equipment manufacturers and contract manufacturing companies. For financial information regarding our business, please see our consolidated financial statements for the year ended December 31, 2013 that are included in this Annual Report on Form 10-K.

Our customers require high throughput, high yield and highly reliable thermal processing systems with tightly controlled temperature and atmospheric parameters. In electronics assembly, our convection solder reflow systems are used to attach electronic components to the printed circuit boards, primarily in the advanced, high-density, surface mount segments of this market. In the semiconductor market, we participate in both wafer level and die level packaging, where our thermal processing systems are used to connect and seal integrated circuits into a package. In the solar market, BTU offers processing equipment for both silicon and thin film photovoltaics. In the alternative energy market, our customers use our thermal systems for the processing of nuclear fuel.

Industry Background

Electronics Markets

Demand for increasingly sophisticated electronic devices continues, and we expect that new technologies such as wireless networks, next generation cellular phones and tablets will help to drive future growth. Electronic equipment continues to become more complex, yet end users are still demanding smaller, lighter and less

1

expensive devices. This, in turn, requires increased performance and reduced cost, size, weight and power requirements of electronic assemblies, printed circuit boards and semiconductors. In response to these developments, manufacturers are increasingly employing more sophisticated production and assembly techniques requiring more advanced manufacturing equipment, such as that supplied by BTU.

Printed Circuit Board Assembly. In the printed circuit board assembly process, semiconductor and discrete-devices plus other components are attached to printed circuit boards. The attachment process, which creates a permanent physical and electrical bond, is called solder reflow or surface mount reflow. Manufacturers rely on high throughput and highly reliable equipment to get the maximum efficiency in their production process.

Wafer Level and Die Level Semiconductor Packaging. Semiconductor packaging processes include precision thermal processing steps. In advanced semiconductor packaging, processing takes place at both the wafer level and die level. At the wafer level, deposited solder must be thermally treated to form perfectly spherical “bumps.” At the die level, these bumps allow the integrated circuits to be bonded to the semiconductor package. Advancements in the semiconductor industry toward higher chip speeds, smaller form factors and reduced costs are driving the transition to wafer level packaging from the traditional wire bonding technique.

Across all markets, the need for more versatile, more reliable and more advanced capital equipment persists. In addition, the continued globalization of manufacturing and the shift to low cost regions such as China, particularly for electronics and silicon photovoltaic producers, has driven the demand for equipment with a lower cost of ownership.

Alternative Energy Markets

BTU’s alternative energy business primarily addresses two markets: the manufacturing of solar cells and nuclear fuels.

Photovoltaics. Silicon photovoltaic applications are served by BTU’s metallization and annealing furnaces and in-line diffusion systems.

BTU’s metallization products include the TRITAN™ and PVD systems. The TRITAN™ is the latest generation product, featuring a unique multiple belt transport system with optimized wavelength thermal heating. The TRITAN™ is capable of processing two lanes of wafers in parallel and sells in the range of $150,000 to $250,000. The PVD series is BTU’s first generation metallization drying and firing solution. It offers a wide variety of configurations from lab scale to mass production. The PVD series sells in the range of $100,000 to $200,000.

BTU recently introduced the SINTERRA™ metallization product line. SINTERRA™ combines advanced process features with industry-leading uptime as the new flagship of the BTU metallization line. These systems generally range in price from $100,000 to $250,000.

The MERIDIAN™ thermal processing system is used for phosphorous diffusion. This system is targeted for customers transitioning from batch to in-line processing. The MERIDIAN™ sells in the range of $700,000 to $1.3 million.

BTU offers solar processing equipment for both silicon and thin film photovoltaics. In thin film photovoltaics, BTU’s equipment is used for both the Copper Indium Gallium Selenide (CIGS) and Cadmium Telluride (CdTe) processes. These thin film systems generally sell in the range of $800,000 to $2.0 million.

Nuclear Fuel. Another application for BTU systems is for sintering nuclear fuel. These sintering processes operate at approximately 1750°C in a hydrogen reduction atmosphere. Our leading product for this application is

2

our patented Walking Beam system, which is ideally suited for the high volume manufacture of nuclear fuels. It uses a walking beam transport system to eliminate friction associated with the conveyance of heavy loads through the process chamber. Walking Beam systems, which are used to sinter gadolinium and uranium pellets used for nuclear fuel generation, generally sell in the range of $2.7 million to $3.3 million.

Technological Challenges

Continuous thermal processing systems present significant engineering challenges related to temperature control, atmosphere control, product handling, flux containment and disposal, and high system up time. Thermal processing systems must maintain accurate and uniform temperatures within their process chambers. The temperature within the process chamber is influenced by the rate at which components are moved through the system and the weight and density of the product. In addition, the thermal processing system’s heat convection and/or radiation rate must be varied and controlled as components and materials are processed. The chamber must also dispense heat uniformly across the product at precise temperatures to ensure maximum process uniformity. Products must be heated and cooled at closely preset rates in order to avoid damage caused by thermal stress.

Another technological challenge for continuous thermal processing systems is achieving precisely controlled atmospheric conditions within the process chamber. In order to facilitate thermal processing without contamination of or damage to the product, many thermal processing systems use a substantially oxygen-free atmosphere of nitrogen or hydrogen in their process chambers. If such gases are used, the exit of process gases and/or the entry of contaminating air must be minimized, even though the product enters and exits the system continuously from the ambient atmosphere. Maintaining a pure, safe and controlled atmosphere in the open process chamber, while minimizing the consumption of nitrogen or hydrogen gases in order to reduce operating costs, presents significant engineering challenges.

Handling products in thermal processing systems requires highly reliable conveyance systems that can easily be converted to process a wide variety of products having different specifications, sometimes on side-by-side tracks through the process chamber. The product handling system must also fully support a wide variety of product sizes.

The mechanical components in thermal processing systems must operate almost continuously in a demanding, elevated temperature environment with frequent thermal cycles. The use of materials that are resistant to high temperature and thermal stress is important to achieving high reliability.

In applications using flux or other process chemicals, the volatile compounds that are vaporized during the thermal processing cycle must be safely contained and collected so that they do not condense in the system or damage the environment. The efficient containment, collection and disposal of the flux or other process chemicals are important factors in achieving high system up time, high throughput and reliability.

Our Solution

We deliver a broad range of thermal processing systems to serve the needs of manufacturers that require high throughput, process yields and reliability with tightly controlled process parameters. Our systems are designed to enable our customers to increase product performance, throughput and yield for electronics assembly, solar cell processing and nuclear fuel sintering by providing precise atmospheric and temperature control. In addition to the expected high performance of our products, we believe maintaining the quality standards of our organization and our worldwide service and support are important to our success with industry leading global manufacturers.

We believe our customers continue to choose our products because of the following factors:

Accurate and Uniform Temperature. Our systems use convection, radiation and infrared heating technologies. Our high-rate convection and fully-enclosed coil heating modules are designed to provide

3

controlled heating capacities across many different applications, thereby enabling our customers to maximize process uniformity and throughput. In addition, our systems are designed to apply heat uniformly across the product load, which is critical to ensure optimum processing. Heat up and cool down profiles are also closely controlled for process consistency and the protection of product.

Atmosphere Uniformity and Control. Our thermal processing systems are designed to provide precision control over atmospheric conditions within their process chambers by integrating our gas and physical curtain technologies. Our systems are designed to be capable of excluding virtually all oxygen from the critical process steps to maintain the safety and integrity of the process chamber atmosphere. In addition, our systems are intended to minimize the consumption of nitrogen or hydrogen, thereby reducing the operating cost of maintaining the atmosphere.

Repeatability from System to System. We design our systems to provide a high degree of repeatability from system to system through our atmospheric and temperature controls and the expected reliability of our systems. This repeatability is achieved through our industry leading closed loop convection technology that is intended to ensure the same convection rate regardless of change in altitude or temperature. This is a critical attribute because our customers must achieve consistent, uniform manufacturing performance in plants located throughout the world.

Processing Flexibility. Major electronics and solar cell manufacturers process many sizes of products and often need rapid product changeover capabilities. Our systems can process printed circuit boards or solar cells of different sizes with minimal or no reconfiguration. Rapid changeover reduces down time and increases manufacturing volume. In addition, our solar cell processing equipment can be configured for multiple process applications allowing for versatility in materials manufacturing.

Reliability. Our customers place a high premium on reliability. Reliability is a major contributor to low cost of ownership because high up time can increase the productivity and efficiency of an entire production line. We believe our systems are the most reliable advanced thermal processing systems in the world.

Systems Integration. We provide fully integrated systems that include automated handling of our products, as well as full software integration with our customers’ factory management systems. This allows our customers to monitor and analyze the process in real time from a central location.

Worldwide Customer Support. Our goal is to provide our customers with global technical service support, in-depth process engineering support and rapid delivery of our systems and parts. We provide our customer support through our on-site direct service organization and our independent sales and service representatives, supplemented with twenty-four hours a day, seven days a week telephone support and extensive customer training programs.

Our Strategy

Our objective is to be the leading provider of thermal and other processing systems to the electronics assembly and alternative energy markets. To achieve this goal and maximize value for our shareholders, our strategy includes the following elements:

1. Deepen relationships with key partners to facilitate product and process development for next generation technologies;

2. Continue to focus on cost reduction initiatives, including the improvement of our global supply chain and reduction in materials costs;

3. Further penetrate existing markets, such as electronics, and new customers by developing innovative products with a low cost of ownership and by offering exceptional customer support; and

4. Expand our low-cost manufacturing and engineering operations in China.

4

Products

We supply a broad range of primarily thermal processing systems for the electronics assembly and alternative energy markets. Our products are used for such applications as printed circuit board assembly and semiconductor packaging, solar cell manufacturing and nuclear fuel processing. Most of our products are used for thermal processing operations; typically having a processing chamber that allows products to enter and exit in a continuous mode through the process chamber via a transport mechanism—in most cases a conveyor belt. A control system regulates a series of electric heaters to produce a consistent, even temperature profile through radiant, convection or infrared heating as required by the customers’ process.

Electronics Products

Printed Circuit Board Assembly. We currently sell thermal processing systems used in the solder reflow and curing stages of printed circuit board assembly. Our printed circuit board assembly products are used primarily in the advanced, high-density segments of the market that utilize surface mount technology.

At the end of 2012, BTU announced the DYNAMO™, the newest reflow oven platform, designed specifically for processing portable electronics. The DYNAMO™ convection reflow oven is positioned to maximize customer value for portable electronics manufacturers, where products are typically lighter, smaller and less complex than other applications. Featuring a new convection design, the DYNAMO™ delivers high efficiency through innovative thermal transfer delivering excellent temperature and gas flow uniformity across the chamber. The DYNAMO platform will be initially targeted geographically in markets with high concentrations of portable electronics manufacturers such as Asia and South America.

Our PYRAMAX™ family of convection reflow systems is designed on a single platform to be rapidly configurable, which is intended to reduce the product build cycle and allow us to meet customer demands for shorter delivery lead times. We believe PYRAMAX™ products offer our customers reduced capital cost, lower nitrogen consumption and reduced scheduled maintenance cycles.

PYRAMAX™ systems provide increased process flexibility due to their ability to process printed circuit boards up to 24 inches wide. Rated up to 400°C, these products are designed to be capable of operating in air or nitrogen atmospheres and to have increased convection flow for greater performance and lead free processes. PYRAMAX™ utilizes impingement technology to transfer heat to the substrate. These systems are offered in 6, 8, 10 and 12-zone heated lengths and are capable of processing lead free solder. They generally range in price from $40,000 to $150,000.

The market need for lead free solder reflow presents a unique challenge by requiring a process temperature that is critically close to the destruct temperature of the components that are being attached. The PYRAMAX™ system’s unique closed loop convection control is designed to provide a repeatable tight temperature window that is optimized for lead free solder reflow.

The solder reflow process requires the thermal processing system to manage flux residues eliminated during the processing of the printed circuit boards. PYRAMAX™ systems are equipped with a patented flux management system that is structured to isolate the flux outside the main process chamber, thereby helping to maintain the integrity of the atmosphere and facilitate easy disposal.

Wafer Level and Die Level Semiconductor Packaging. We sell several systems for the thermal processes used in advanced semiconductor packaging.

Flip-chip reflow provides the physical and electronic bond of the semiconductor device to its package. The PYRAMAX™ families of convection reflow systems, utilizing our closed loop convection technology, rate at up to 400°C and operate in air or nitrogen atmospheres. These products utilize impingement technology to transfer heat to the substrate. Using thermal power arrays of five-kilowatt heaters, they can process substrates in dual

5

lane, dual speed configurations, thereby enabling our customers to double production without increasing the machine’s footprint. These products are available in four models based on the heated lengths of thermal processing chambers. Heated length is based on the required production rate and loading requirements. The products generally range in price from $70,000 to $180,000.

Alternative Energy Products

The processing of advanced materials used in non-fossil fuel power generation applications is a significant target market. The cost fluctuations of fossil fuels and environmental concerns have increased demand for “clean” power. For power generation applications, we serve the solar cell and nuclear fuel markets. We support our worldwide alternative energy customers through our global sales and service network.

Solar Cells. BTU offers solar processing equipment for both silicon and thin film photovoltaics. Silicon photovoltaic applications are served by BTU’s metallization, in-line diffusion, and annealing processes and systems. Our MERIDIAN™ in-line diffusion system features the MERIDIAN™ diffusion furnace and phosphorus coater, which includes key advances such as back-side and top-side coating and an integrated dryer. The system can be configured to achieve up to 1500 (156mm) wafers per hour and can also be configured to use third party coating applications. The in-line process offers reduced wafer handling and greater throughput than traditional batch processing. Reduced handling translates into lower breakage rates, improved yield and lower cost of ownership. The MERIDIAN™ system price starts at $700,000 and varies depending on configuration.

For the metallization process, BTU offers a complete line of Rapid Thermal Processing furnaces utilizing near infrared heating technology. Systems come in varying lengths and widths to suit specific throughput requirements. The product line has been specifically designed for the solar cell metallization process and is used for contact drying and firing. Specialized features include rapid heating via densely spaced tungsten lamps and rapid cooling rates obtained through proprietary water cooling technology. BTU recently introduced the SINTERRA™ metallization product line. SINTERRA™ combines advanced process features with industry-leading uptime as the new flagship of the BTU metallization line. These systems generally range in price from $100,000 to $250,000.

To improve solar cell efficiency and reduce manufacturing cost, the solar market invests aggressively in new technologies. BTU offers next generation thermal processing equipment to enable such new technologies.

Annealing of additional and/or novel layers and plating are becoming important process steps. BTU has developed products for these applications, providing production scale equipment to several key solar companies and pilot units to others. We expect this to be an emerging business in the years to come, and we are well positioned to be a leader in this emerging area.

In thin film photovoltaics, BTU leverages its experience with large-scale, custom, in-line thermal processing systems. System designs are scalable and are sold for lab, pilot and production sized applications. These systems generally sell for in excess of $1 million, although the price can vary widely based on size and features.

Nuclear Fuels. We offer both walking beam and pusher systems for sintering nuclear fuel. These processes operate at temperatures in the range of 1750°C in a hydrogen reduction atmosphere. Our most important product for this market is our patented Walking Beam system designed for high volume manufacture of nuclear fuels. It uses a walking beam transport system to eliminate friction associated with the conveyance of heavy loads. Walking Beam systems are used to sinter gadolinium and uranium fuel-pellets used for nuclear power generation. These systems generally sell in the range of $2.7 million to $3.3 million.

Customers

Many of our principal customers are large-volume global manufacturers that use our products in multiple facilities worldwide. Of our top ten revenue generating customers in 2013, one customer accounted for $8.2 million, or 17.4% of total net sales.

6

Sales and Support

We market and sell our products primarily through our direct sales force and independent sales representatives throughout the world. Our on-site direct service organization and our independent sales representatives provide ongoing support to customers using our products. These services include implementing continuous improvement tools related both to the cost of our products and to their technical performance. As well as process support, our strong global support infrastructure allows us to market future sales within our current customer base and contributes to our competitive position. Our management and sales teams participate in periodic trade conventions, through which we market our products to potential customers.

We have implemented a software based quotation system to simplify and accelerate our sales process for our customers.

Research, Development and Engineering

Our efforts in 2013 were directed towards development of new products for both the electronics and alternative energy businesses, improvements to our offerings in the solar cell equipment market, as well as upgrades to our core in-line furnace business. Product platform extensions are being handled by our U.S. and China technical team, while most new technology is being developed in the U.S. BTU’s recently announced DYNAMO™ solder reflow platform was designed through collaboration between our China and U.S. teams. Our engineering and applications teams are working with a number of partners to further develop processes related to metallization, annealing and in-line diffusion for both standard and next generation high efficiency cells which would uniquely benefit from our type of low cost process.

Our development team is looking at and modeling our heating, cooling, conveyance methods, insulation, and materials of construction to enhance our furnace performance and widen the possible number of process applications available to us. A number of these ideas are already being made available to our customers, and this will continue in 2014. We are also piloting a novel heating system and investigating possible applications for this.

Our research, development, and engineering costs for the years ending December 31, 2013, 2012, and 2011 can be found under the heading “Consolidated Statement of Operations Data” in Item 6 of this report, which is incorporated herein by reference.

Manufacturing and Suppliers

Our principal manufacturing operations consist of final assembly, systems integration and testing at our facilities in North Billerica, Massachusetts and Shanghai, China. We outsource the manufacture of many of our subsystems to a number of key suppliers and maintain close relationships with them while also maintaining qualified alternative suppliers. In 2004, our manufacturing facility in Shanghai, China was established for our electronics assembly products and solar cell metallization products, as well as local sourcing of materials.

In the past few years, we have substantially improved our global supply chain and reduced our material costs. We have upgraded and reorganized our operations organization in the U.S. In addition, we have leveraged our presence in China to widen the supply base for our Shanghai manufactured electronics assembly and solar cell metallization products.

Continuous improvement in the supply chain is a key strategic imperative. We have established a global sourcing organization, based in China, to further develop high quality, cost effective suppliers throughout the world.

Our commitment to developing new products, a desire to increase collaboration between engineering teams located in the U.S. and China, and the need to protect our intellectual property led us to implement an enterprise data management system in our North Billerica and Shanghai design centers. In addition to the overall benefits of increased collaboration and information control, the system has significantly improved the productivity of China-based engineers, speeding migration of new products to manufacturing facilities in Shanghai.

7

We have outsourced the manufacture of most of our significant component systems, thereby reducing cycle time and increasing our inventory turnover. We seek to adhere closely to the principles of total quality management and have been ISO 9001 certified since 1998. In our North Billerica facility, we converted to ISO 9001:2008 in October 2009, and our Shanghai, China manufacturing operations has been ISO 9001:2008 certified since July 2009. Our customers, suppliers and employees are strongly encouraged to provide feedback and suggestions for improvements in products and services.

Intellectual Property

We seek to protect our intellectual property by filing patents on proprietary features of our advanced thermal processing systems and by challenging third parties that we believe infringe on our patents. We also protect our intellectual property rights, including our trademarks, trade secrets and copyrights with nondisclosure and confidentiality agreements with employees, consultants and key customers. As a global supplier of equipment, we recognize that the laws of certain foreign countries may not protect our intellectual property to the same extent as the laws of the U.S. Our current portfolio includes 36 issued patents, 27 trademarks that are registered or pending and 20 pending patent applications.

We license software programs from third-party developers and incorporate them into our products. Generally, these agreements grant us non-exclusive licenses to use the software and terminate only upon a material breach by us. We believe that such licenses are generally available on commercially reasonable terms from a number of licensors.

Backlog

Backlog as of December 31, 2013, was $6.5 million, compared to $6.2 million as of December 31, 2012. As of December 31, 2013, we expected to ship our year-end backlog within 40 weeks. Solder reflow systems are typically shipped within 3 to 8 weeks. The backlog of our custom systems is expected to be shipped within 12 to 40 weeks. We include in backlog only those orders for which the customer has issued a purchase order and for which we have a defined delivery schedule within 12 months. Due to possible changes in delivery schedules, lead time variations and order cancellations, our backlog at any particular date is not necessarily representative of sales for any subsequent period.

Competition

Several companies compete with us in selling thermal processing systems. Although price is a factor in buying decisions, we believe that technological leadership, process capability, throughput, environmental safeguards, uptime, mean time-to-repair, cost of ownership and after-sale support have become increasingly important factors. We compete primarily on the basis of these criteria, rather than on the basis of price only.

Our principal competitors for printed circuit board assembly equipment and advanced semiconductor packaging vary by product application. Our principal competitors for solder reflow systems are Vitronics-Soltec, Heller, Folungwin, ERSA, and Rehm. Our principal competitors for advanced semiconductor packaging are Vitronics-Soltec and Heller. Our systems for the alternative energy markets and other applications compete primarily against products offered by Despatch, Amtech, Centrotherm, SierraTherm, Smit and Harper. We also face competition from emerging low cost Asian manufacturers and other established European manufacturers.

Employees

As of December 31, 2013, we had 290 employees, of whom 68 were engaged in sales, marketing and service, 27 in research, development and engineering, 32 in finance and administration and 163 in operations. Of these 290 employees, 190 reside outside of the U.S. None of our employees are represented by a collective bargaining agreement, and we believe that we have satisfactory relations with our employees.

8

Environmental

One of our core values is protecting the environment in which we operate and the environment in which our equipment operates. Compliance with laws and regulations regarding the discharge of materials into the environment, or otherwise relating to the protection of the environment, has not had any material effects on our capital expenditures, earnings or competitive position. We do not anticipate any material capital expenditures for environmental control in our facilities in 2014.

As an equipment manufacturer, we generate and dispose of small quantities of solid waste that is considered hazardous under Environmental Protection Agency (“EPA”) regulations. Because we historically used a waste disposal firm that disposed of the solid waste at a site that the EPA has designated as a Superfund site, we have been named by the EPA as one of the entities responsible for a portion of the expected clean-up costs. Based on our proportional responsibility, as negotiated with and agreed to by the EPA, our liability related to this matter is $225,140. This amount is included in Accrued Expenses on the Consolidated Balance Sheet as of December 31, 2013 as it had not been paid as of that date.

Our Web Site

Our web site is www.btu.com. It provides information about us, and allows you to obtain, free of charge, a copy of our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, including exhibits, and any amendments to those reports filed or furnished with the Securities and Exchange Commission pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended. We make these reports available through our web site as soon as reasonably practicable after our electronic filing of such materials with, or the furnishing of them to, the Securities and Exchange Commission. References to our web site are inactive textual references only, and the information contained or incorporated on our web site is not a part of or incorporated into this Annual Report on Form 10-K for any purpose.

ITEM 1A. RISK FACTORS

Our industry has historically been cyclical and experienced periodic downturns.

Our business depends on capital spending by electronics, semiconductor, solar cell and nuclear fuel manufacturers, which in turn depends on current and anticipated market demand for printed circuit boards, integrated circuits and solar panels and the products that use them as well as the need for nuclear fuel for power generation. We continue to experience a significant downturn in the solar industry. The electronics and semiconductor industries have historically been cyclical and have experienced periodic downturns that have had a material adverse effect on the demand for equipment that we manufacture and market.

We have made substantial investments in our organization to develop new products for the alternative energy market. Sales of our products to the alternative energy generation markets are subject to substantial risks.

Solar Energy. The solar energy sector is primarily dependent upon continuation of governmental subsidies which have been scaled back. A further decline in these subsidies would reduce our ability to grow our business in this market due to reduced capital spending by the manufacturers of solar panels. The solar industry is currently facing overcapacity in its production capacity. This overcapacity has a meaningful negative impact on demand for capital equipment supplied to this industry.

Nuclear Energy. The market for nuclear fuel pellets used in power generation is dependent upon further growth in nuclear power production. Consequently, without growth in the production of nuclear power, our opportunities to grow in this area will be limited. In addition, we may need export licenses to supply this type of equipment to certain countries. Failure to maintain such licenses or obtain new required licenses may impact our ability to expand our revenue from this market.

9

Our strategy of developing products for the solar market has yet to achieve consistent positive cash flows, and we are relying on a combination of cash on hand and cash flow from sales of our products to the non-solar market to fund our operations and our investment in the solar market strategy.

Since 2005, we have been pursuing a strategy of developing and selling thermal products for the solar market. Although this strategy produced meaningful sales in the solar market in 2010 and 2011, the significant decline in the solar market in 2012 and 2013 has meant that we have not achieved the results we had hoped for. Although we continue to believe that the solar market presents an attractive opportunity for our products, in the near term we are funding our investments and operations in the solar market from cash flows from sales of our products to the non-solar market and our cash on hand. If the solar market does not improve, or if our products do not gain the acceptance we have planned, our cash resources will not allow us to continue making investments in the solar market and we will need to take action to restructure the Company. Such actions, which could include exiting the solar business, selling assets or workforce reductions, could have a material adverse effect on our financial condition and result of operations and on the price of our stock.

If we are unable to increase sales and reduce costs, our profitability and liquidity may be affected negatively.

We had an operating loss of $9.7 million in 2013 compared to operating loss of $10.4 million in 2012. We attribute a large portion of the operating loss in 2013 to decreases in sales and the under-absorption of costs in our facilities, and the result of the legal settlement that was recognized in the Company’s consolidated statement of operations for the three months ended September 29, 2013. We may not experience growth in our business in 2014, which will negatively impact our profitability and liquidity.

Our future success will depend on our ability to effectively develop and market our products against those of our competitors.

The industry in which we do business is highly competitive. Some of our competitors have substantially greater financial, engineering, manufacturing and customer support capabilities and offer more extensive product offerings. If customers prefer products offered by our competitors, we will have difficulty maintaining or increasing our revenue. Our principal competitors for solder reflow systems are Vitronics-Soltec, Heller, Folungwin, ERSA, and Rehm. Our principal competitors for advanced semiconductor packaging are Vitronics-Soltec and Heller. Our systems for the alternative energy markets and other applications compete primarily against products offered by Centrotherm, Amtech, Factory 48, Despatch, SierraTherm, Smit and Harper. We expect our competitors to continue to improve the design and performance of their current products and to introduce new products with improved performance capabilities. Our failure to introduce new products in a timely manner, or the introduction by our competitors of products with perceived or actual advantages, could result in reduced sales of, or lower margins on, our products. In future years, we expect to face increased competition based on price, particularly from companies in Asia. If we are unable to reduce the costs of our products or introduce new lower cost products, we may lose sales to these competitors.

A significant amount of our cash is in China and may not be brought back to the United States without tax consequences, which reduces our flexibility in deploying our liquidity.

We do not accrue incremental U.S. taxes on our revenues from China as these earnings are considered to be indefinitely reinvested outside of the U.S. While we have no plans to do so, events may occur in the future that could effectively force us to change our intent not to repatriate our foreign earnings. If we change our intent and repatriate such earnings, we will have to accrue the applicable amount of taxes associated with such earnings and pay taxes at a substantially higher rate than our effective income tax rate in 2013. These increased taxes could materially adversely affect our financial condition and results of operations and therefore reduce the flexibility we have to deploy our cash.

10

Sales made by our international operations are subject to the economic, political, legal and business environments of the countries in which we do business, and our failure to operate successfully or adapt to changes in these environments could cause our international sales and operations to be limited or disrupted.

Our international sales accounted for 82.1% of our consolidated revenue for 2013. We expect to continue to generate a significant percentage of our revenue outside the U.S. for the foreseeable future. In addition, we have direct investments in a number of subsidiaries outside of the U.S., primarily in Asia and Europe. Our international operations could be limited or disrupted, and the value of our direct investments may be diminished, by any of the following:

• fluctuations in currency exchange rates;

• the imposition of governmental controls;

• import and export license requirements;

• political instability;

• difficulties enforcing contractual and intellectual property rights;

• terrorist activities and armed conflict;

• restrictions on direct investments by foreign entities and trade restrictions;

• changes in tax laws and tariffs;

• costs and difficulties in staffing and managing international operations; and

• longer customer payment cycles.

Additionally, we are subject to the Foreign Corrupt Practices Act, which may place us at a competitive disadvantage to foreign companies that are not subject to similar regulations.

We conduct only a small portion of our sales in currencies other than the U.S. dollar. We recognize foreign currency gains or losses arising from our operations in the period in which we incur those gains or losses. As a result, currency fluctuations among the U.S. dollar and the other currencies in which we do business have caused foreign currency transaction gains and losses in the past and will likely do so in the future. Because of the number of currencies involved, the variability of currency exposures and the potential volatility of currency exchange rates, we may suffer foreign currency transaction losses in the future due to the effect of exchange rate fluctuations.

Over the past few years, a majority of our revenue has been generated from sales in the Asia Pacific region. Our operations are particularly vulnerable to instability in this region and competition from organizations based in this region.

During 2013, 61.0% of our revenue was generated from sales in the Asia Pacific region. Political or economic instability in any of the major Asia Pacific economies may adversely impact the demand for capital equipment, including equipment of the type we manufacture and market. In addition, we face competition from a number of suppliers based in the Asia Pacific region that have certain advantages over U.S. suppliers, including us. These advantages include, among other things, lower operating and regulatory costs, proximity to customers, favorable tariffs and affiliation with significantly larger organizations. In addition, changes in the amount or price of electronics or solar cells produced in the Asia Pacific region could negatively impact spending by our customers.

If we fail to maintain positive relationships with key personnel, we may be unable to successfully grow our business.

Our future operating results depend substantially upon the continued service of our key personnel, who are not bound by employment agreements. Our future operating results also depend in significant part upon our

11

ability to attract and retain qualified management, manufacturing, technical, engineering, marketing, sales and support personnel. Competition for qualified personnel, particularly those with technical skills, is intense, and we may fail to attract and retain qualified personnel. Our business, financial condition and results of operations could be materially adversely affected by the loss of any of our key employees, by the failure of any key employee to perform in his or her current position, or by our inability to attract and retain skilled employees.

The income tax rate on our consolidated income before taxes is subject to variables beyond our control.

Our net income and cash flow can be adversely affected by innumerable conditions affecting income taxes which are outside of our control. To name but a few of the potential uncontrollable circumstances that could affect the consolidated tax rate:

• We sell and operate globally, with manufacturing in both the United States and China. Disagreements could occur on the jurisdiction of income and taxation among different country governmental tax authorities. Potential areas of disputes could include transfer pricing values, inter-company cross charges and inter-company balances.

• We are subject to a China withholding tax on certain non-tangible charges made under our transfer pricing agreements. The interpretation of what charges are subject to the tax and when the liability for the tax occurs has varied and could change in the future.

• In the United States, new tax disclosure regulations, unfavorable interpretations and unforeseen enforcements by the government tax authorities of various provisions of the federal and state tax codes, could have an unfavorable impact on the amount and timing of our tax provision and cash flow.

Failure of critical suppliers to deliver sufficient quantities of parts in a timely and cost-effective manner would adversely impact our operations.

Although we use numerous vendors to supply components for the manufacture of our products, not all are qualified suppliers for all of our parts. Some key parts may only be available from a single supplier. Accordingly, we may experience problems in obtaining adequate and reliable quantities of various components. In addition, suppliers may cease manufacturing certain components that are difficult to replace without significant reengineering of our products. Our results of operations will be materially adversely impacted if we are unable to obtain adequate supplies of components in a timely and cost effective manner.

The occurrence of natural disasters in the Asia Pacific region may adversely impact our operations and sales.

We have an expanding engineering and manufacturing facility in China, and the majority of our sales are made to destinations in the Asia Pacific region. This region is known for being vulnerable to natural disasters and other risks, such as earthquakes and floods, which at times have disrupted the local economies. A significant earthquake or other crisis could materially affect our operating results. We are not insured for most losses and business interruptions of this kind, and we do not have redundant, multiple site capacity in the event of a natural disaster. In the event of such a disaster, our business would suffer.

We face the risk of product liability claims or other litigation, which could be expensive and may divert management’s attention from running our business.

The manufacture and sale of our products involve the risk of product liability claims. In addition, a failure of one of our products at a customer site could interrupt the business operations of our customer. Our existing insurance coverage limits may not be adequate to protect us from all liabilities that we might incur in connection with the manufacture and sale of our products if a successful product liability claim or series of product liability claims were brought against us. We may also be involved in other legal proceedings or claims and experience threats of legal action from time to time in the ordinary course of our business.

12

Regulations related to conflict minerals could adversely impact our business.

The Dodd-Frank Wall Street Reform and Consumer Protection Act contains provisions to improve transparency and accountability concerning the supply of certain minerals, known as conflict minerals, originating from the Democratic Republic of Congo (DRC) and adjoining countries. As a result, the SEC has adopted annual disclosure and reporting requirements for those companies who use conflict minerals mined from the DRC and adjoining countries in their products. These new requirements require companies to conduct due diligence efforts to determine whether products contain such conflict minerals, with initial disclosure requirements beginning in May of 2014. Our supply chain is complex and we may be unable to verify the origins for all metals used in our products. As a result, we may be unable to certify that our products are conflict mineral free.

Provisions in our organizational documents could prevent or frustrate attempts by stockholders to replace our current management and could make acquisitions more difficult.

Our certificate of incorporation and by-laws contain provisions that could make it more difficult for a third party to acquire us without the consent of our board of directors. Our certificate of incorporation provides that our stockholders may not take action by written consent. This provision may have the effect of preventing or hindering attempts by our stockholders to replace our current management. Furthermore, Delaware law prohibits a corporation from engaging in a business combination with any holder of 15% or more of its capital stock until the holder has held the stock for three years unless, among other possibilities, the corporation’s board of directors approves the transaction. Our board of directors may use this provision to prevent changes in our management. Also, our board of directors may adopt additional anti-takeover measures in the future.

Our officers and directors may be able to block proposals for a change in control.

Paul J. van der Wansem, our chairman and chief executive officer, beneficially owns approximately 20.1% of our outstanding common stock as of December 31, 2013. Due to this concentration of ownership, Mr. van der Wansem may be able to prevail on all matters requiring a stockholder vote, including:

• the election of directors;

• the amendment of our organizational documents; or

• the approval of a merger, sale of assets, or other major corporate transaction.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 2. PROPERTIES

Facilities

We maintain our headquarters in North Billerica, Massachusetts, where we own a 150,000 square foot facility. We also operate an approximately 45,000 square foot leased manufacturing, engineering, sales and service facility in Shanghai, China.

In England, we lease a facility for our European and Near East sales and service operations. In the Asia Pacific region, we lease sales and service offices in Singapore and Malaysia.

ITEM 3. LEGAL PROCEEDINGS

On October 4, 2013, the Company settled previously disclosed litigation regarding allegations made by one of its overseas customers that furnaces such customer had purchased from the Company in 2006 had not

13

functioned properly. The settlement constitutes a full and final settlement and release of all rights and obligations of each party. The $1.5 million payable as a result of the settlement has been recognized in the Company’s consolidated statement of operations for the three months ended September 29, 2013. The payable balance on this settlement as of December 31, 2013 was $1.2 million.

ITEM 4. MINE SAFETY DISCLOSURE

Not applicable.

14

PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Price Range of Common Stock

Our common stock is quoted on the NASDAQ Global Market under the symbol “BTUI.” The following table sets forth, for the periods indicated, the high and low sale prices per share of our common stock as reported on the NASDAQ Global Market.

	High		Low
Year Ended December 31, 2012
First Quarter		3.69		2.53
Second Quarter		3.21		2.64
Third Quarter		2.78		2.10
Fourth Quarter		2.36		1.89
Year Ended December 31, 2013
First Quarter		3.45		1.96
Second Quarter		2.63		2.15
Third Quarter		3.38		2.42
Fourth Quarter		4.26		2.30

As of January 31, 2014, we had 398 record holders of our common stock.

Dividend Policy

Our policy is to retain cash to provide funds for the operation and expansion of our business. We have not paid cash dividends on our common stock and do not anticipate that we will do so in the foreseeable future. The payment of dividends in the future will depend on our growth, profitability, financial condition and other factors that our board of directors may deem relevant.

15

Stock Performance

The graph below matches the Company’s cumulative five-year total shareholder return on common stock with the cumulative total returns of the S&P 500 index and the S&P Information Technology index. The graph tracks the performance of a $100 investment in our common stock and in each index (with the reinvestment of all dividends) from 12/31/2008 to 12/31/2013.

	12/08		12/09		12/10		12/11		12/12		12/13
BTU International, Inc.		100.00		158.75		222.20		65.00		48.75		75.25
S&P 500		100.00		126.46		145.51		148.59		172.37		228.19
S&P Information Technology		100.00		161.72		178.20		182.50		209.55		269.13

The stock price performance included in this graph is not necessarily indicative of future stock price performance.

16

ITEM 6. SELECTED FINANCIAL DATA

The selected consolidated statement of operations data for each of the years ended December 31, 2013, December 31, 2012 and December 31, 2011 and the selected consolidated balance sheet data as of December 31, 2013 and December 31, 2012 have been derived from our consolidated financial statements audited by independent registered public accountants, which are included elsewhere in this Annual Report on Form 10-K. The selected consolidated statement of operations data for the years ended December 31, 2010 and December 31, 2009 and the selected consolidated balance sheet data as of December 31, 2011, December 31, 2010 and December 31, 2009 have been derived from audited financial statements not included in this Annual Report on Form 10-K. This data should be read together with our consolidated financial statements and related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” appearing elsewhere in this Form 10-K.

	Years Ended December 31,
Consolidated Statement of Operations Data:	2013			2012			2011			2010			2009
	(In thousands, except per share data)
Net sales	$	47,754		$	58,089		$	76,128		$	81,607		$	45,086
Cost of goods sold		33,048			41,617			47,542			47,851			32,706
Gross profit		14,706			16,472			28,586			33,756			12,380
Selling, general and administrative		19,786			20,965			22,721			23,063			18,957
Research, development and engineering		4,604			5,450			7,056			6,575			6,882
Restructuring		—			424			401			—			—
Operating income (loss)		(9,684	)		(10,367	)		(1,592	)		4,118			(13,459	)
Interest income		53			63			77			81			236
Interest expense		(418	)		(462	)		(481	)		(601	)		(673	)
Foreign exchange loss		(193	)		(224	)		(139	)		(33	)		(278	)
Other income (expense), net		65			58			365			(6	)		44
Income (loss) before provision for income taxes		(10,177	)		(10,932	)		(1,770	)		3,559			(14,130	)
Provision for income taxes		1,291			65			952			1,378			435
Net income (loss)	$	(11,468	)	$	(10,997	)	$	(2,722	)	$	2,181		$	(14,565	)
Income (loss) per share:
Basic	$	(1.20	)	$	(1.16	)	$	(0.29	)	$	0.24		$	(1.58	)
Diluted	$	(1.20	)	$	(1.16	)	$	(0.29	)	$	0.23		$	(1.58	)
Weighted average shares outstanding:
Basic		9,539			9,509			9,434			9,277			9,222
Diluted		9,539			9,509			9,434			9,428			9,222
	December 31,
Consolidated Balance Sheet Data:	2013			2012			2011			2010			2009
	(In thousands)
Cash and cash equivalents	$	13,991		$	20,218		$	18,948		$	22,753		$	25,397
Working capital		22,130			31,894			41,634			41,537			37,132
Total assets		40,330			48,669			56,718			67,645			58,794
Total liabilities		21,421			19,189			17,266			27,805			23,101
Stockholders’ equity		18,909			29,480			39,452			39,840			35,693

17

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

BTU International, Inc. (“BTU” or the “Company”), which was founded in 1950, was incorporated as a Delaware corporation in 1981 and is headquartered in North Billerica, Massachusetts The Company operates as a single business segment called Thermal Processing Capital Equipment. Our business consists of the designing, manufacturing, selling and servicing of thermal processing equipment and related process controls for use in the electronics, alternative energy, automotive and other industries. This includes the supply of solder reflow systems used for surface mount applications in printed circuit board assembly. Thermal processing equipment is used in: low temperature curing/encapsulation; hybrid integrated circuit manufacturing; integrated circuit packaging and sealing; and processing multi-chip modules. In addition, the equipment is used for solar cell processing, sintering nuclear fuel for commercial power generation, as well as brazing and the sintering of ceramics and powdered metals, and the deposition of precise thin film coatings. Our customers are multinational original equipment manufacturers and contract manufacturing companies. For financial information regarding our business, please see our consolidated financial statements for the year ended December 31, 2013 that are included in this Annual Report on Form 10-K

Our customers require high throughput, high yield and highly reliable thermal processing systems with tightly controlled temperature and atmospheric parameters. In electronics assembly, our convection solder reflow systems are used to attach electronic components to the printed circuit boards, primarily in the advanced, high-density, surface mount segments of this market. In the semiconductor market, we participate in both wafer level and die level packaging, where our thermal processing systems are used to connect and seal integrated circuits into a package. In the solar market, BTU offers processing equipment for both silicon and thin film photovoltaics. In the alternative energy market, our customers use our thermal systems for the processing of nuclear fuel.

Critical Accounting Policies and Significant Estimates

The following is a discussion of those accounting policies that we deem to be “critical”—that is, they are important to the portrayal of our financial condition and results of operations, and they reflect management’s reliance on estimates regarding matters that are inherently uncertain.

Revenue Recognition. We recognize revenue in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 605, Revenue Recognition (“ASC 605”). Under these guidelines, we recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or services rendered, the price is fixed or determinable and payment is reasonably assured. Under these requirements, we recognize revenue upon acceptance when the terms of sale include customer acceptance provisions and compliance with those customer acceptance provisions has not been previously demonstrated. Applying the requirements of ASC 605 to future sales arrangements used in our equipment sales may result in the deferral of the revenue for some equipment sales. Products shipped to customers that do not meet the threshold requirements for revenue recognition as outlined above remain in our inventory on the Consolidated Balance Sheet until revenue is recognized. Any cash collected from customers for products for which revenue has been deferred is recorded as Deferred Revenue on the Consolidated Balance Sheet.

We also have certain sales transactions for products which are not completed within the normal operating cycle of the business. It is our policy to account for these transactions using the percentage of completion method for revenue recognition purposes when all of the following criteria exist: (1) we received the purchase order or entered into a legally binding contract, (2) the customer is credit worthy and collection is probable or customer prepayments are required at product completion milestones or specific dates, (3) the sales value of the product to be delivered is significant in amount when compared to our other products, and (4) the costs can be reasonably estimated, there is no major technological uncertainty and the total engineering, material procurement, product assembly and test cycle time extend over a period of six months or longer.

18

Under the percentage of completion method, revenue and gross margins to date are recognized based upon the ratio of costs incurred to date compared to the latest estimate of total costs to complete the product as a percentage of the total contract revenue for the product. Revisions in costs and gross margin percentage estimates are reflected in the period in which the facts causing the revision become known. Provisions for total estimated losses on uncompleted contracts, if any, are made in the period in which such losses are determined. For the years ended December 31, 2013, 2012, and 2011, we recorded revenue of $0, $1,731,686 and $2,406,714, using the percentage of completion method, respectively.

Inventory Valuation. Our inventories consist of material, labor and manufacturing overhead costs. We determine the cost of inventory based on standard cost and then adjust inventories to actual cost at reasonable intervals to reflect current conditions to approximate the first-in, first-out method. We regularly review the quantity of inventories on hand and compare these quantities to the expected usage of each applicable product or product line. Our inventories are adjusted in value to the lower of costs or net realizable value. Since the value of our inventories depends in part on our estimates of each product’s net realizable value, adjustments may be needed to reflect changes in valuation. Any adjustments we are required to make to lower the value of the inventories are recorded as a charge to cost of sales and establish a new cost basis. We recorded inventory provisions in cost of goods sold of $1,868,000, $5,261,000 and $2,294,000 for the years ended December 31, 2013, 2012, and 2011 respectively

Stock-Based Compensation. We account for share-based compensation in accordance with the provisions of FASB ASC Topic 718,Compensation—Stock Compensation (“ASC 718”). Under these guidelines, we expense share-based compensation under the straight-line method. The choice of a valuation technique, and the approach utilized to develop the underlying assumptions for that technique, involve significant judgments. These judgments reflect management’s assessment of the most accurate method of valuing the stock options we issue based on our historical experience, knowledge of current conditions and beliefs of what could occur in the future given available information. Our judgments could change over time as additional information becomes available to us, or the facts underlying our assumptions change over time, and any change in our judgments could have a material effect on our financial statements. We believe that our estimates incorporate all relevant information and represent a reasonable approximation in light of the difficulties involved in valuing non-traded stock options. For the years ended December 31, 2013, 2012, and 2011, we recorded share based compensation of $631,000, $836,000 and $1,272,000, respectively.

Accounting for Income Taxes. We determine our annual income tax provision in each of the jurisdictions in which we operate. This involves determining our current and deferred income tax expense as well as accounting for differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. The future tax consequences attributable to these differences result in deferred tax assets and liabilities, which are included in our Consolidated Balance Sheets. We assess the recoverability of the deferred tax assets by considering whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. To the extent we believe that recovery does not meet this “more likely than not” standard as required in FASB ASC Topic 740, Income Taxes (“ASC 740”), we must establish a valuation allowance.

Management’s judgments and estimates are required in determining our income tax provision, deferred tax assets and liabilities and any valuation allowance recorded against deferred tax assets. A review of all available positive and negative evidence needs to be considered, including a company’s performance, the market environment in which the company operates and the length of carryback and carryforward periods. According to those standards, a valuation allowance may be needed when the negative evidence includes cumulative losses in recent years. Therefore, cumulative losses weigh heavily in the overall assessment. As a result of management’s review as of September 29, 2013, the Company concluded that it was appropriate to establish a full valuation allowance for net deferred tax assets in the China manufacturing subsidiary, where cumulative losses have been incurred during recent periods. The significant fluctuations in the Company’s quarterly tax rate, exclusive of the fluctuation related to the establishment of the valuation allowance, as a percent of consolidated pre-tax income or

19

loss, are the result of the different statutory tax rates in each of the Company’s non-U.S. locations and the fluctuations of pre-tax income (loss) generated in these jurisdictions. A portion of the consolidated annual tax provision relates to Chinese withholding taxes which are not directly related to pre-tax income in China. China withholding taxes primarily result from corporate royalty charges based on the China manufacturing subsidiary net sales. U.S. taxes have had no impact to the rate fluctuation as the U.S. Company operates at a loss.

We assess tax positions taken on tax returns, including recognition of potential interest and penalties, in accordance with the recognition thresholds and measurement attributes outlined in ASC 740. Interest and penalties recognized, if any, would be classified as a component of income tax expense. An uncertain tax position represents our expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax expense for financial reporting purposes. The Company believes that we have appropriate support for the income tax positions taken and to be taken on our tax returns and that our accruals for tax liabilities are adequate for all open years based on an assessment of many factors, including past experience and interpretations of tax law applied to the facts of each matter. As of December 31, 2013 and 2012, the Company has recorded accruals of approximately $114,000 in connection with uncertain tax positions.

The Company’s major tax jurisdictions include the United States and China. We are no longer subject to U.S. state or local and non-U.S. income tax examinations by tax authorities in our major jurisdictions for years before 2008, except to the extent of net operating loss and tax credit carryforwards from those years. For the year ended December 31, 2013, there were no material changes to the total amount of unrecognized tax benefits. We do not expect any significant increases or decreases for uncertain tax positions during the next 12 months

In the past, we have benefited from a partial “tax holiday” in our Shanghai manufacturing subsidiary. The Chinese government tax authorities passed legislation that imposes an equalization of income tax rates for both domestic and foreign companies at a rate of 25%. This law became effective on January 1, 2008 and has been phased in by gradually increasing our tax rate until it reached 25% in the first quarter of 2012.

RESULTS OF OPERATIONS

The following table sets forth the percentage of net sales of certain items in our Consolidated Statements of Operations for the periods indicated.

	Years Ended December 31,
	2013			2012			2011
Net sales		100.0	%		100.0	%		100.0	%
Cost of goods sold		69.2	%		71.6	%		62.5	%
Gross profit		30.8	%		28.4	%		37.5	%
Operating expenses:
Selling, general and administrative		41.4	%		36.1	%		29.8	%
Research, development and engineering		9.6	%		9.4	%		9.3	%
Restructuring		0.0	%		0.7	%		0.5	%
Operating loss		(20.3	)%		(17.8	)%		(2.1	)%
Interest income		0.1	%		0.1	%		0.1	%
Interest expense		(0.9	)%		(0.8	)%		(0.6	)%
Foreign exchange loss		(0.4	)%		(0.4	)%		(0.2	)%
Other income, net		0.1	%		0.1	%		0.5	%
Loss before provision for income taxes		(21.3	)%		(18.8	)%		(2.3	)%
Provision for income taxes		2.7	%		0.1	%		1.3	%
Net loss		(24.0	)%		(18.9	)%		(3.6	)%

20

YEAR ENDED DECEMBER 31, 2013 AS COMPARED TO YEAR ENDED DECEMBER 31, 2012

	Years Ended December 31,
	2013						2012
				( $ in thousands)
				% of net sales						% of net sales			Percent change
Net sales	$	47,754			100.0	%	$	58,089			100.0	%		(17.8	)%
Cost of goods sold		33,048			69.2	%		41,617			71.6	%		(20.6	)%
Gross profit		14,706			30.8	%		16,472			28.4	%		(10.7	)%
Selling, general and administrative expenses		19,786			41.4	%		20,965			36.1	%		(5.6	)%
Research, development and engineering expenses		4,604			9.6	%		5,450			9.4	%		(15.5	)%
Restructuring		—			0.0	%		424			0.7	%		(100.0	)%
Operating loss		(9,684	)		(20.3	)%		(10,367	)		(17.8	)%		(6.6	)%
Loss before provision for income taxes		(10,177	)		(21.3	)%		(10,932	)		(18.8	)%		(6.9	)%
Provision for income taxes		1,291			2.7	%		65			0.1	%		1886.2	%
Net loss	$	(11,468	)		(24.0	)%	$	(10,997	)		(18.9	)%		4.3	%

Net Sales. Net sales in 2013 decreased by $10.3 million or 17.8% compared to 2012. Net sales for the Company’s electronics market systems decreased from $42.0 million in 2012 to $40.2 million in 2013, a decrease of $1.8 million or 4.4%. The alternative energy systems sales decreased from $7.4 million in 2012 to $1.6 million in 2013, a decrease of $5.9 million or 79.1%. The other market systems, parts and service sales decreased from $8.6 million in 2012 to $6.0 million in 2013, a decrease of $2.6 million or 30.3%. The electronic market systems decrease represents a decrease in demand for Surface Mount Technology systems and other electronics, particularly in Asia, offset by an increase in demand for semiconductor packaging systems in the United States. The Company’s alternative energy systems 2013 sales decrease as compared to 2012 was due to the continued weakening of the worldwide solar industry which started in the second quarter of 2011. The other market systems, parts and service 2013 sales decrease as compared to 2012 was due to the cyclical nature of the parts and service business combined with a decrease in other market system sales.

As a result of the weakness in capital spending in the solar industry, we expect minimal revenue from solar products in the immediate future.

The following table sets forth, for the periods indicated, revenues from sales into select geographies expressed in dollars per thousand and as a percentage of total revenue. The values shown represent the amount sold into each of the listed geographical areas.

	2013				2012				2011
United States	$	8,541	18	%	$	8,756	15	%	$	13,199	17	%
Europe and Near East		6,647	14	%		9,242	16	%		5,759	8	%
Asia Pacific		29,138	61	%		38,606	66	%		53,052	70	%
Other Americas		3,428	7	%		1,485	3	%		4,118	5	%
Total Revenue	$	47,754			$	58,089			$	76,128

Gross Profit. Gross profit for 2013 decreased to $14.7 million or a decrease of 10.7% from $16.5 million in 2012. The gross profit as a percentage of sales for 2013 increased to 30.8% from 28.4% for 2012, due primarily to lower inventory write-downs recorded in 2013 compared to 2012. Our results of operations in future quarters could also be affected by further inventory write-downs. The Company assesses inventory at each period end and records inventory write-downs as appropriate based on market conditions.

21

Selling, General and Administrative (SG&A). SG&A expenses decreased by $1.2 million or 5.6% from $21.0 million in 2012 to $19.8 million in 2013, but increased as a percentage of sales from 36.1% in 2012 to 41.4% in 2013. For the year ended December 31, 2013 as compared to the year ended December 31, 2012, the decrease is primarily due to the lower commission on reduced sales and cost reduction actions taken in the Company’s service, marketing and administrative functions; offset by higher legal expense in 2013 due to the settlement of previously disclosed litigation. Our results of operations in future quarters could also be affected by further reductions in operating expenses.

Research, Development and Engineering (RD&E). RD&E expenses decreased by $0.8 million or 15.5% to $4.6 million in 2013 from $5.5 million in 2012. The decreases are the result of headcount reductions and expense reductions in the Company’s RD&E functions as we moderated our spending on the development of new solar technologies.

Operating Loss. The 17.8% net sales decrease and its associated negative effect on gross profit combined with higher legal expenses in connection with the settlement of previously disclosed litigation resulted in an operating loss in 2013 of $9.7 million as compared to an operating loss of $10.4 million in 2012.

Interest Income (Expense). During the year ended December 31, 2013 as compared to the year ended December 31, 2012, net interest expense remained relatively flat at $0.4 million.

Foreign Exchange Loss. The foreign exchange loss in 2013 was $193,000 as compared to a loss of $224,000 in 2012. The net exchange loss is primarily the result of foreign currency exposure in the Company’s foreign operations.

Income Taxes. For the twelve months ended December 31, 2013, the Company recorded an income tax provision of $1.3 million compared to a provision of $65,000 in the same period in the prior year. The income tax provision recorded for the twelve months ended December 31, 2013 is primarily due to establishing a $1.1 million valuation allowance on all deferred tax assets related to the China manufacturing subsidiary. The applicable accounting standards require that a valuation allowance be established when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. A review of all available positive and negative evidence needs to be considered, including a company’s performance, the market environment in which the company operates and the length of carryback and carryforward periods. According to those standards, a valuation allowance may be needed when the negative evidence includes cumulative losses in recent years. Therefore, cumulative losses weigh heavily in the overall assessment. As a result of Company’s review as of September 29, 2013, the Company concluded that it was appropriate to establish a full valuation allowance for net deferred tax assets in the China manufacturing subsidiary, where cumulative losses have been incurred during recent periods. The significant fluctuations in the Company’s quarterly tax rate, exclusive of the fluctuation related to the establishment of the valuation allowance, as a percent of consolidated pre-tax income or loss, are the result of the different statutory tax rates in each of the Company’s non-U.S. locations and the fluctuations of pre-tax income (loss) generated in these jurisdictions. A portion of the consolidated annual tax provision relates to Chinese withholding taxes which are not directly related to pre-tax income in China. China withholding taxes primarily result from corporate royalty charges based on the China manufacturing subsidiary net sales. U.S. taxes have had no impact to the rate fluctuation as the U.S. Company operates at a loss.

Our statutory federal income tax rate is 34.0%. The Company’s statutory income tax rate for its China manufacturing subsidiary is 25% in 2013 and 2012 and 24% in 2011. In 2014, the statutory tax rate for our China manufacturing subsidiary will remain at 25%.

22

YEAR ENDED DECEMBER 31, 2012 AS COMPARED TO YEAR ENDED DECEMBER 31, 2011

	Years Ended December 31,
	2012						2011
	($ in thousands)
				% of net sales						% of net sales			Percent change
Net sales	$	58,089			100.0	%	$	76,128			100.0	%		(23.7	)%
Cost of goods sold		41,617			71.6	%		47,542			62.5	%		(12.5	)%
Gross profit		16,472			28.4	%		28,586			37.5	%		(42.4	)%
Selling, general and administrative expenses		20,965			36.1	%		22,721			29.8	%		(7.7	)%
Research, development and engineering expenses		5,450			9.4	%		7,056			9.3	%		(22.8	)%
Restructuring		424			0.7	%		401			0.5	%		5.7	%
Operating loss		(10,367	)		(17.8	)%		(1,592	)		(2.1	)%		551.2	%
Loss before provision for income taxes		(10,932	)		(18.8	)%		(1,770	)		(2.3	)%		517.6	%
Provision for income taxes		65			0.1	%		952			1.3	%		(93.2	)%
Net loss	$	(10,997	)		(18.9	)%	$	(2,722	)		(3.6	)%		304.0	%

Net Sales. Net sales in 2012 decreased by $18.0 million or 23.7% compared to 2011. Net sales for the Company’s electronics market systems increased from $34.9 million in 2011 to $42.0 million in 2012, an increase of $7.1 million or 20.3%. The alternative energy systems sales decreased from $29.2 million in 2011 to $7.4 million in 2012, a decrease of $21.8 million or 74.6%. The other market systems, parts and service sales decreased from $11.9 million in 2011 to $8.6 million in 2012, a decrease of $3.3 million or 27.7%. The electronic market systems increase represents an increase in demand for Surface Mount Technology systems, particularly in China and an increase in demand for semiconductor packaging systems in the United States. The Company’s alternative energy systems 2012 sales decrease as compared to 2011 was due to the continued weakening of the worldwide solar industry which started in the second quarter of 2011. The other market systems, parts and service 2012 sales decrease as compared to 2011 was due to the cyclical nature of the parts and service business combined with a decrease in other market system sales.

As a result of the weakness in capital spending in the solar industry, we expect minimal revenue from solar products over the immediate future.

Gross Profit. Gross profit for 2012 decreased to $16.5 million or a decrease of 42.4% from $28.6 million in 2011. The gross profit as a percentage of sales for 2012 decreased to 28.4% from 37.5% for 2011, due primarily to lower volume, product mix and overhead under absorption at our factories combined with higher inventory write-downs. Our results of operations in future quarters could also be affected by further inventory write-downs. The Company assesses inventory at each period end and records inventory write-downs as appropriate based on market conditions.

Selling, General and Administrative (SG&A). SG&A expenses decreased by $1.8 million or 7.7% from $22.7 million in 2011 to $21.0 million in 2012, but increased as a percentage of sales from 29.8% in 2011 to 36.1% in 2012. For the year ended December 31, 2012 as compared to the year ended December 31, 2011, the decrease is primarily due to the lower commission on reduced sales and cost reduction actions taken in the Company’s service, marketing and administrative functions; offset by higher bad debt expense in 2012. In 2012, management determined certain accounts receivables were uncollectable and recorded bad debt expense of approximately $1.4 million. Our results of operations in future quarters could also be affected by further reductions in operating expenses.

23

Research, Development and Engineering (RD&E). RD&E expenses decreased by $1.6 million or 22.8% to $5.5 million in 2012 from $7.1 million in 2011. The decreases are the result of headcount reductions and expense reductions in the Company’s RD&E functions as we moderated our spending on the development of new solar technologies.

Restructuring. The Company recorded a restructuring charge of $424,000 in 2012 as compared to $401,000 in 2011. This restructuring action was taken due to the continued slowdown in the Company’s solar market product line.

Operating Loss. The 23.7% net sales decrease and its associated negative effect on gross profit combined with higher inventory and bad debt reserves resulted in an operating loss in 2012 of $10.4 million as compared to an operating loss of $1.6 million in 2011.

Interest Income (Expense). During the year ended December 31, 2012 as compared to the year ended December 31, 2011, net interest expense remained relatively flat at $0.4 million.

Foreign Exchange Loss. The foreign exchange loss in 2012 was $224,000 as compared to a loss of $139,000 in 2011. The net exchange loss is primarily the result of foreign currency exposure in the Company’s foreign operations.

Income Taxes. In 2012, we recorded an income tax provision of $65,000 as compared to $1.0 million in 2011. The Company’s income tax provision primarily relates to income and withholding taxes related to our China operations.

The significant fluctuations in the Company’s quarterly tax rate, as a percent of consolidated pre-tax income or loss is the result of the different statutory tax rates in each of the Company’s non-U.S. locations and the fluctuations of pre-tax income (loss) generated in these jurisdictions. A portion of the consolidated annual tax provision relates to Chinese withholding taxes which are not directly related to pre-tax income in China. China withholding taxes primarily result from corporate royalty charges based on our China manufacturing subsidiary’s net sales. U.S. income taxes have had no impact to the rate fluctuation as the U.S. company operates at a loss.

Our statutory federal income tax rate is 34.0%. The Company’s statutory income tax rate for its China manufacturing subsidiary is 25% in 2012 and 24% in 2011.

LIQUIDITY AND CAPITAL RESOURCES

As of December 31, 2013, we had $14.0 million in cash and cash equivalents, a decrease of $6.2 million compared to $20.2 million at the end of 2012. Approximately $9.4 million of the $14.0 million in cash and cash equivalents is held at our foreign subsidiaries as of December 31, 2013.

During 2013, the Company used net cash of approximately $5.8 million for operating activities. This use of cash was primarily the result of a net loss of $11.5 million; an increase in accounts receivable of $1.4 million and an increase in inventory of $2.0 million, offset by a decrease in other current assets of $2.4 million; an increase of deferred revenue of $1.2 million; an increase of accrued expenses of $1.1 million and an add back of non-cash expenses of depreciation and amortization of $1.6 million, stock-based compensation of $0.6 million and inventory provisions of $1.9 million and deferred taxes of $0.8 million.

On March 30, 2006, the Company entered into a $10 million mortgage note secured by its real property in Billerica, Massachusetts, which had an initial maturity date of December 23, 2015. On September 9, 2010, the Company signed a First Loan Modification Agreement relating to the mortgage note, which reduced the annual interest rate from 6.84% to 5.50% and the monthly payment from $76,280 to $69,000.

24

On August 31, 2009, the Company entered into a pledge and assignment agreement with a bank. The bank agrees, at the Company’s request, to issue letters of credit in the bank’s name and the Company agrees to cash collateralize the letters of credit via restricted cash deposits at the bank. As of December 31, 2013, the value of the outstanding letters of credit issued by the bank for the Company and cash collateralized by the Company was $247,515. This restricted cash value is included in the Company’s balance sheet in other current assets.

On September 26, 2013, the Company signed a Second Loan Modification Agreement relating to the mortgage note, which extended the maturity date from December 23, 2015 to September 26, 2023. The modification also reduced the annual interest rate from 5.50% to 4.43% through September 26, 2018, at which time the interest rate will be adjusted to a per annum fixed rate equal to the aggregate of the Federal Home Loan Board (FHLB) Five Year Classic Advance Rate plus two hundred forty basis points. The current monthly payment was reduced from $69,000 to $57,997. The mortgage note had an outstanding balance on December 31, 2013 of approximately $7.6 million. All outstanding principal and accrued and unpaid interest will be due and payable on the maturity date.

As of December 31, 2013, the Company has no material commitments relating to capital expenditures.

The Company’s business forecasts project that our cash position and cash flow will be sufficient to meet our corporate, operating and capital requirements for the next twelve months.

CONTRACTUAL OBLIGATIONS

The Company’s contractual obligations at December 31, 2013 were (in thousands):

	Payments Due by Period
Contractual Obligations	Total		2014		2015- 2016		2017- 2018		2019 and Thereafter
Long-term debt (1)	$	7,586	$	367	$	785	$	858	$	5,576
Interest on long-term debt		2,407		329		607		534		937
Operating leases		281		196		85		—		—
Open purchase orders		2,462		2,462		—		—		—
Total	$	12,736	$	3,354	$	1,477	$	1,392	$	6,513

(1) Mortgage Note Payable, due September 2023

(2) The Company has a liability at December 31, 2013, including potential interest and penalties, of approximately $114,000 for uncertain tax positions that have been taken or are expected to be taken in various income tax returns.

The Company does not know the ultimate resolution of these uncertain tax positions and as such, does not know the ultimate timing of payments related to this liability. Accordingly, these amounts are not included in the table above.

RECENT ACCOUNTING PRONOUNCEMENTS

In February 2013, the FASB issued ASU No. 2013-02, Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income, that requires entities to disclose items reclassified out of accumulated other Comprehensive Income (AOCI) and into net income in their entirety, the effect of the reclassification on each affected net income line item and for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required U.S. GAAP disclosures. This consolidated standard is effective for annual periods beginning after December 15, 2012 and interim periods within those years. The application of this standard did not have material impact on the Company’s consolidated financial statements included elsewhere in this Annual Report on Form 10-K.

25

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

MARKET RISK DISCLOSURE

We have international subsidiaries in China, the United Kingdom, Singapore and Malaysia. These subsidiaries transact business in their functional or local currency. Therefore, we are exposed to foreign currency exchange risks and fluctuations in foreign currencies, along with economic and political instability in the foreign countries in which we operate, all of which could adversely impact our results of operations and financial condition.

As of December 31, 2013, all of our long-term debt obligations are fixed rate financial instruments. Therefore we are not exposed to interest rate risk resulting from variable interest rate of our debt.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The information required by Item 8 of Form 10-K is presented here in the following order:

Report of Independent Registered Public Accounting Firm	27
Consolidated Balance Sheets as of December 31, 2013 and 2012	28
Consolidated Statements of Operations for the years ended December 31, 2013, 2012 and 2011	29
Consolidated Statements of Comprehensive Loss for the years ended December 31, 2013, 2012 and 2011	30
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2013, 2012 and 2011	31
Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2012 and 2011	32
Notes to Consolidated Financial Statements	33

26

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Stockholders

BTU International, Inc:

We have audited the accompanying consolidated balance sheets of BTU International, Inc., and subsidiaries as of December 31, 2013 and 2012 and the related consolidated statements of operations, comprehensive income (loss), stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2013. In connection with our audits of the consolidated financial statements, we also have audited financial statement schedule II. These consolidated financial statements and financial statement schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with the audit standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of BTU International, Inc., and subsidiaries as of December 31, 2013 and 2012 and the results of their operations and their cash flows for each of the years in the three-year period ended December 31, 2013 in conformity with U.S. generally accepted accounting principles. Also in our opinion, the related financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

/s/ KPMG LLP

Boston, Massachusetts

March 13, 2014

27

BTU INTERNATIONAL, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except share and per share data)

	As of December 31,
	2013			2012
Assets
Current assets
Cash and cash equivalents	$	13,991		$	20,218
Accounts receivable, less allowance of $1,280 and $1,583 at December 31, 2013 and 2012		11,370			9,623
Inventories		9,831			9,547
Other current assets		1,126			4,131
Total current assets		36,318			43,519
Property, plant and equipment, at cost
Land		210			210
Buildings and improvements		11,268			11,200
Machinery and equipment		16,231			16,168
Furniture and fixtures		1,082			1,062
		28,791			28,640
Less accumulated depreciation		(25,405	)		(23,971	)
Net property, plant and equipment		3,386			4,669
Other assets, net of accumulated amortization of $2,582 in 2013 and $2,552 in 2012		626			481
Total assets	$	40,330		$	48,669
Liabilities and stockholders’ equity
Current liabilities
Current portion of long-term debt	$	367		$	400
Trade accounts payable		5,408			5,185
Deferred revenue		2,052			893
Accrued expenses		6,361			5,147
Total current liabilities		14,188			11,625
Long-term debt, less current portion		7,219			7,564
Other long-term liabilities		14			—
Total liabilities		21,421			19,189
Commitments and contingencies
Stockholders’ equity
Preferred stock, $1.00 par value—5,000,000 shares authorized; no shares issued or outstanding		—			—
Common stock, $0.01 par value—25,000,000 shares authorized; 10,924,856 shares issued and 9,556,889 shares outstanding at December 31, 2013 and 10,898,939 shares issued and 9,530,972 shares outstanding at December 31, 2012		109			109
Additional paid-in capital		52,204			51,545
Accumulated deficit		(30,853	)		(19,385	)
Less: treasury stock at cost, 1,367,967 shares at December 31, 2013 and December 31, 2012		(4,990	)		(4,990	)
Accumulated other comprehensive income		2,439			2,201
Total stockholders’ equity		18,909			29,480
Total liabilities and stockholders’ equity	$	40,330		$	48,669

The accompanying notes are an integral part of these consolidated financial statements.

28

BTU INTERNATIONAL, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

	Years Ended December 31,
	2013			2012			2011
Net sales	$	47,754		$	58,089		$	76,128
Cost of goods sold		33,048			41,617			47,542
Gross profit		14,706			16,472			28,586
Selling, general and administrative		19,786			20,965			22,721
Research, development and engineering		4,604			5,450			7,056
Restructuring		—			424			401
Operating loss		(9,684	)		(10,367	)		(1,592	)
Interest income		53			63			77
Interest expense		(418	)		(462	)		(481	)
Foreign exchange loss		(193	)		(224	)		(139	)
Other income, net		65			58			365
Loss before provision for income taxes		(10,177	)		(10,932	)		(1,770	)
Provision for income taxes		1,291			65			952
Net loss	$	(11,468	)	$	(10,997	)	$	(2,722	)
Loss per share:
Basic	$	(1.20	)	$	(1.16	)	$	(0.29	)
Diluted	$	(1.20	)	$	(1.16	)	$	(0.29	)
Weighted average number of shares outstanding:
Basic		9,539			9,509			9,434
Diluted		9,539			9,509			9,434

The accompanying notes are an integral part of these consolidated financial statements.

29

BTU INTERNATIONAL, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

	Years Ended December 31,
	2013			2012			2011
	(In thousands)
Comprehensive loss is calculated as follows:
Net loss	$	(11,468	)	$	(10,997	)	$	(2,722	)
Other comprehensive income:
Foreign currency translation adjustment		238			126			450
Comprehensive loss	$	(11,230	)	$	(10,871	)	$	(2,272	)

The accompanying notes are an integral part of these consolidated financial statements.

30

BTU INTERNATIONAL, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands)

	Common Stock				Additional Paid-In Capital		Accumulated Deficit			Treasury Stock					Accumulated Other Comprehensive Income
	# of shares		$							# of shares		$					Total
Balance at December 31, 2010		10,718	$	107	$	48,764	$	(5,666	)		1,368	$	(4,990	)	$	1,625	$	39,840
Net loss		—		—		—		(2,722	)		—		—			—		(2,722	)
Exercise of stock options		123		2		519		—			—		—			—		521
Issuance of common stock		27		—		91		—			—		—			—		91
Translation adjustment		—		—		—		—			—		—			450		450
Stock-based compensation		—		—		1,272		—			—		—			—		1,272
Balance at December 31, 2011		10,868	$	109	$	50,646	$	(8,388	)		1,368	$	(4,990	)	$	2,075	$	39,452
Net loss		—		—		—		(10,997	)		—		—			—		(10,997	)
Exercise of stock options		3		—		10		—			—		—			—		10
Issuance of common stock		28		—		53		—			—		—			—		53
Translation adjustment		—		—		—		—			—		—			126		126
Stock-based compensation		—		—		836		—			—		—			—		836
Balance at December 31, 2012		10,899	$	109	$	51,545	$	(19,385	)		1,368	$	(4,990	)	$	2,201	$	29,480
Net loss		—		—		—		(11,468	)		—		—			—		(11,468	)
Issuance of common stock		26		—		28		—			—		—			—		28
Translation adjustment		—		—		—		—			—		—			238		238
Stock-based compensation		—		—		631		—			—		—			—		631
Balance at December 31, 2013		10,925	$	109	$	52,204	$	(30,853	)		1,368	$	(4,990	)	$	2,439	$	18,909

The accompanying notes are an integral part of these consolidated financial statements.

31

BTU INTERNATIONAL, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

	Years Ended December 31,
	2013			2012			2011
Cash flows from operating activities:
Net loss	$	(11,468	)	$	(10,997	)	$	(2,722	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization		1,633			1,702			1,800
Provision (recovery) for bad debts		(266	)		1,383			(49	)
Provision for inventory		1,868			5,261			2,294
Stock-based compensation		631			836			1,272
Deferred taxes		852			(391	)		(77	)
Gain on sale of property, plant and equipment		(51	)		—			—
Loss on disposal of fixed assets		—			—			6
Net change in operating assets and liabilities:
Accounts receivable		(1,369	)		1,452			5,709
Inventories		(2,042	)		2,191			(592	)
Other current assets		2,354			(1,785	)		(843	)
Other assets		(305	)		(203	)		200
Accounts payable		108			1,632			(6,814	)
Deferred revenue		1,158			398			(2,911	)
Other long-term liabilities		14			—			—
Accrued expenses		1,118			210			(780	)
Net cash provided by (used in) operating activities		(5,765	)		1,689			(3,507	)
Cash flows provided by (used in) investing activities:
Proceeds from sale of property, plant and equipment		57			—			—
Purchases of property, plant and equipment		(302	)		(221	)		(711	)
Net cash used in investing activities		(245	)		(221	)		(711	)
Cash flows from financing activities:
Principal payments under loan and capital lease agreements		(378	)		(371	)		(353	)
Issuance of common stock		28			53			91
Proceeds from the exercise of stock options		—			10			521
Net cash provided by (used in) financing activities		(350	)		(308	)		259
Effects of exchange rates on cash		133			110			154
Net increase (decrease) in cash and cash equivalents		(6,227	)		1,270			(3,805	)
Cash and cash equivalents, beginning of period		20,218			18,948			22,753
Cash and cash equivalents, end of period	$	13,991		$	20,218		$	18,948
Supplemental disclosures of cash flow information:
Cash paid (received) during the periods for:
Interest paid	$	365		$	397		$	435
Income taxes paid ( received)	$	537		$	(35	)	$	388

The accompanying notes are an integral part of these consolidated financial statements.

32

BTU INTERNATIONAL, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1)     SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

NATURE OF OPERATIONS

BTU International, Inc. and its wholly owned subsidiaries (the “Company”) are primarily engaged in the design, manufacture, sale, and service of thermal processing systems, which are used as capital equipment in various manufacturing processes, primarily in the electronics and alternative energy industries.

COMPREHENSIVE INCOME (LOSS)

The Company follows Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 220, Comprehensive Income (“ASC 220”) as amended by Accounting Standards Update (ASU) 2011-05, Presentation of Comprehensive Income. ASC 220 requires companies to report all changes in equity during a period, resulting from net income (loss) and transactions from non-owner sources, in a financial statement in the period in which they are recognized. On January 1, 2012, the date of adoption of ASU 2011-05, we had the option to report total comprehensive income, including components of net income and components of other comprehensive income, as a single continuous statement or in two separate but consecutive statements. We elected to present comprehensive income in two separate but consecutive statements as part of the consolidated financial statements. Other than a change in presentation, the implementation of this accounting pronouncement did not have a material impact on our consolidated financial statements.

PRINCIPLES OF CONSOLIDATION AND THE USE OF ESTIMATES

The accompanying consolidated financial statements include the accounts of the Company. All material inter-company balances and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. The primary estimates used in the consolidated financial statements include the percentage of completion revenue method, inventory valuation, allowance for doubtful accounts, valuation of deferred income taxes, stock-based compensation and warranty reserves.

CASH AND CASH EQUIVALENTS

The Company has classified certain highly liquid financial instruments, with original maturities of three months or less, as cash equivalents.

ACCOUNTS RECEIVABLE

Accounts receivable are stated at the amount management expects to collect from outstanding balances. An allowance for doubtful accounts is provided for those accounts receivable considered to be uncollectible based upon historical experience and management’s evaluation of outstanding accounts receivable at the end of the year. Uncollectible accounts are written off against the allowance when identified. Bad debt expense (recovery) was ($280,000), $1,345,000, and ($49,000) for 2013, 2012 and 2011, respectively.

INVENTORIES

Our inventories consist of material, labor and manufacturing overhead costs. We determine the cost of inventory based on a first-in, first-out method. We regularly review the quantity of inventories on hand and compare these quantities to the expected usage of each applicable product or product line. Our inventories are

33

adjusted in value to the lower of cost or net realizable value and a new cost basis is established. Since the value of our inventories depends in part on our estimates of each product’s net realizable value, adjustments may be needed to reflect changes in valuation. Any adjustments we are required to make to lower the value of the inventories are recorded as a charge to cost of sales.

Inventories consist of the following (in thousands):

	Years Ended December 31,
	2013		2012
Raw materials and manufactured components	$	6,010	$	4,772
Work-in-process		2,459		1,905
Finished goods		1,362		2,870
Total inventory	$	9,831	$	9,547

The Company recorded inventory write-downs of $1,868,000, $5,261,000, and $2,294,000, for the years ended 2013, 2012 and 2011, respectively. The write-downs recorded are net of recoveries of sold inventory that had previously been written-down in the amounts of approximately $250,000, $60,000, and $485,000 for the years ended 2013, 2012 and 2011, respectively.

PROPERTY, PLANT AND EQUIPMENT

The Company provides for depreciation using the straight-line method over the assets’ useful lives. Leasehold improvements are amortized on a straight-line basis over the lesser of the estimated useful life of the asset or the lease term. The estimated useful lives for depreciation purposes are as follows:

Buildings and improvements	8-25 years
Machinery and equipment	2-8 years
Software	3-10 years
Furniture and fixtures	3-8 years
Leasehold improvements	3 years

Depreciation expense was approximately $1,603,000, $1,641,000, and $1,624,000 for the years ended December 31, 2013, 2012, and 2011, respectively.

Maintenance and repairs are charged to operations as incurred. When equipment and improvements are sold or otherwise disposed of, the asset cost and accumulated depreciation are removed from the accounts, and the resulting gain or loss, if any, is included in the results of operations.

The Company evaluates long-lived assets such as intangible assets and property, plant and equipment under FASB ASC 360-10-35-15, Impairment or Disposal of Long-Lived Assets. This statement requires that long-lived assets and certain identifiable intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset or asset group to future undiscounted net cash flows expected to be generated by the asset or asset group. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. No impairment of long-lived assets were identified during the years ended December 31, 2013, 2012 and 2011.

34

OTHER ASSETS

Other assets consist of the following (in thousands):

	2013		2012
Deferred financing costs, net of amortization	$	73	$	23
Intellectual property, net of amortization		—		23
Deferred tax asset—non-current		—		143
Long term assets		553		292
Total	$	626	$	481

Deferred financing costs, capitalized in 2013, are being amortized over ten years, the term of the mortgage note. Amortization on deferred financing costs was approximately $7,000, $7,000 and $7,000 in 2013, 2012 and 2011, respectively. Amortization on intellectual property was approximately $23,000, $54,000, and $169,000 in 2013, 2012 and 2011, respectively.

INCOME TAXES

Deferred tax assets and liabilities are recognized for the expected future tax consequences of events that have been included in the consolidated financial statements or tax returns. The amounts of deferred tax assets or liabilities are based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided if, based on the weight of the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

We assess tax positions taken on tax returns, including recognition of potential interest and penalties, in accordance with the recognition thresholds and measurement attributes outlined in ASC 740. Interest and penalties recognized, if any, would be classified as a component of income tax expense.

TRANSLATION OF FOREIGN CURRENCIES

Assets and liabilities of the Company’s foreign operations are translated from their functional currency into U.S. dollars at year end exchange rates. Revenue and expense items are translated at weighted average rates of exchange prevailing during the year. Gains and losses arising from translation are accumulated as a separate component of stockholders’ equity, as the functional currency of the subsidiaries is their local currency, and the reporting currency of the Company is the U.S. dollar. Exchange gains and losses arising from transactions denominated in foreign currencies are included in income as incurred.

PATENTS

The Company has patents in the U.S. and certain foreign countries for some of its products and processes. No value has been assigned to these patents in the accompanying consolidated financial statements.

REVENUE RECOGNITION

The Company recognizes revenue in accordance with FASB ASC Topic 605, Revenue Recognition (“ASC 605”). Under these guidelines, revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services rendered, the price is fixed or determinable and payment is reasonably assured. Under these requirements, when the terms of sale include customer acceptance provisions, and compliance with those provisions has not been demonstrated, revenues are recognized upon acceptance.

35

Applying the requirements of ASC 605 to future sales arrangements used in the Company’s equipment sales may result in the deferral of the revenue for some equipment sales. Products shipped to customers that do not meet the threshold requirements for revenue recognition as outlined above remain in the Company’s inventory on the Consolidated Balance Sheet until revenue is recognized. Any cash collected from customers for products for which revenue has been deferred is recorded as Deferred Revenue on the Consolidated Balance Sheet.

The Company also has certain sales transactions for products, which are not completed within the normal operating cycle of the business. It is the Company’s policy to account for these transactions using the percentage of completion method for revenue recognition purposes when all of the following criteria exist: (1) The Company has received the customer’s purchase order or entered into a legally binding contract, (2) The customer is credit worthy and collection is probable or customer prepayments are required at product completion milestones or specific dates, (3) The sales value of the product to be delivered is significant in amount when compared to the Company’s other products, and (4) Product costs can be reasonably estimated, there is no major technological uncertainty and the total engineering, material procurement, product assembly and test cycle time extend over a period of six months or longer.

Under the percentage of completion method, revenues and gross margins to date are recognized based upon the ratio of costs incurred to date compared to the latest estimate of total costs to complete the product as a percentage of the total contract revenue for the product. Revisions in costs and gross margin percentage estimates are reflected in the period in which the facts causing the revision become known. Provisions for total estimated losses on uncompleted contracts, if any, are made in the period in which such losses are determined. For the years ended December 31, 2013, 2012 and 2011, $0, $1,731,686, and $2,406,714, respectively, were recognized as revenue using the percentage of completion method.

The Company accounts for shipping and handling costs billed to customers in accordance with FASB ASC 605-45, Shipping and Handling Fees and Costs. Amounts billed to customers for shipping and handling costs are recorded as revenues with the associated costs reported as cost of goods sold.

RESEARCH, DEVELOPMENT AND ENGINEERING

Research, development and engineering costs are charged to expense as incurred.

EARNINGS PER SHARE INFORMATION

Basic earnings per share (EPS) is computed by dividing net income (loss) available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted EPS is computed using the weighted-average number of common and potentially dilutive securities outstanding during the period, using the treasury stock method. Potentially dilutive securities include outstanding stock options and unvested restricted stock units (RSUs). Due to their antidilutive effect, approximately 1,454,292, 1,376,041, and 1,299,358 options to purchase common stock were excluded from the calculation of diluted loss per share for the years ended December 31, 2013, 2012 and 2011, respectively. However, these potentially dilutive securities could become dilutive in future periods.

The weighted average number of common shares used to compute basic and diluted earnings per share consists of the following classification:

	Years Ended December 31,
	2013		2012		2011
	(In thousands)
Basic shares		9,539		9,509		9,434
Effect of dilutive options		—		—		—
Diluted shares		9,539		9,509		9,434

36

RECENT ACCOUNTING PRONOUNCEMENTS

In February 2013, the FASB issued ASU No. 2013-02, Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income, that requires entities to disclose items reclassified out of accumulated other Comprehensive Income (AOCI) and into net income in their entirety, the effect of the reclassification on each affected net income line item and for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required U.S. GAAP disclosures. This consolidated standard is effective for annual periods beginning after December 15, 2012 and interim periods within those years. The application of this standard did not have material impact on the Company’s consolidated financial statements.

SUBSEQUENT EVENTS

For the fiscal year ended December 31, 2013, the Company has evaluated subsequent events for potential recognition and disclosure in the financial statements through the date these financial statements were filed with the Securities and Exchange Commission.

(2)     ACCRUED EXPENSES

Accrued expenses at December 31, 2013 and 2012 consisted of the following (in thousands):

	2013		2012
Accrued commissions	$	1,086	$	935
Accrued warranty		379		393
Accrued taxes		1,858		1,817
Accrued audit		419		388
Accrued legal		1,430		240
Accrued bonus		85		87
Payroll and payroll taxes		688		793
Accrued cost of sales		142		300
Accrued restructuring		—		111
Other		274		83
	$	6,361	$	5,147

Warranties

The Company provides standard warranty coverage for parts and labor for 12 months and special extended material-only coverage on certain other products. The Company estimates and records a reserve for anticipated warranty claims based on historical warranty claims as a percentage of revenue by product line. The reserve for warranty covers the estimated costs of material, labor and travel. Actual warranty claims incurred are charged against the reserve. Factors that affect the Company’s product warranty liability include the number of installed units, the anticipated cost of warranty repairs and historical and anticipated rates of warranty claims.

The following table reflects changes in the Company’s accrued warranty account during the fiscal years ended December 31, 2013 and 2012:

	2013			2012
	(In thousands)
Beginning balance	$	393		$	497
Plus: accruals related to new sales		397			538
Less: warranty claims incurred		(411	)		(642	)
Ending balance	$	379		$	393

37

Restructuring

Costs associated with restructuring activities are accounted for in accordance with ASC Topic 420, Exit or Disposal Cost Obligations, or ASC Topic 712, Compensation—Nonretirement Postemployment Benefits, as applicable. Pursuant to ASC Topic 712, liabilities for employee severance are recorded when payment of severance is considered probable and the amount is estimable. For restructuring costs other than employee severance accounted under ASC Topic 712, a liability is recognized in accordance with ASC Topic 420 only when incurred.

In April 2013, the Company eliminated 12 positions. Accordingly, the Company recorded a restructuring charge of $176,000 in the three months ended June 30, 2013. The decision to eliminate 12 positions was taken due to the continued slowdown in the solar industry. The Company eliminated 31 and 17 positions and recorded restructuring charges of $424,000 and $401,000 in the years ended December 31, 2012 and December 31, 2011.

The restructuring charges were primarily severance and benefits.

The following table reflects changes in the reserves for restructuring charges for the year ended December 31, 2013 (in thousands):

	2013
Beginning balance, December 31, 2012	$	111
Plus: charges to costs and expenses		176
Less: reduction of accrual		(71	)
Less: cash payments		(216	)
Ending balance, December 31, 2013	$	—

(3)     DEBT, CAPITAL LEASES, COMMITMENTS AND CONTINGENCIES

On March 30, 2006, the Company entered into a $10 million mortgage note secured by its real property in Billerica, Massachusetts, which had an initial maturity date of December 23, 2015. On September 9, 2010, the Company signed a First Loan Modification Agreement relating to the mortgage note, which reduced the annual interest rate from 6.84% to 5.50% and the monthly payment from $76,280 to $69,000.

On August 31, 2009, the Company entered into a pledge and assignment agreement with a bank. The bank agrees, at the Company’s request, to issue letters of credit in the bank’s name and the Company agrees to cash collateralize letters of credit via restricted cash deposits at the bank. As of December 31, 2013 and 2012, the value of the outstanding letters of credit issued by the bank for the Company and cash collateralized by the Company was $247,515 and $247,090, respectively. This restricted cash value is included in the Company’s balance sheet in other current assets.

On September 26, 2013, the Company signed a Second Loan Modification Agreement relating to the mortgage note, which extended the maturity date from December 23, 2015 to September 26, 2023. The modification also reduced the annual interest rate from 5.50% to 4.43% through September 26, 2018, at which time the interest rate will be adjusted to a per annum fixed rate equal to the aggregate of the Federal Home Loan Board (FHLB) Five Year Classic Advance Rate plus two hundred forty basis points. The current monthly payment was reduced from $69,000 to $57,997. The mortgage note had an outstanding balance on December 31, 2013 of approximately $7.6 million. All outstanding principal and accrued and unpaid interest will be due and payable on the maturity date.

38

Long-term debt consisted of:

	December 31, 2013		December 31, 2012
	($ in thousands)
Mortgage note payable, interest rate of 4.43% and 5.50% at December 31, 2013 and December 31, 2012, respectively	$	7,586	$	7,964
Less—current portion of long-term debt		367		400
Long-Term debt, less current portion	$	7,219	$	7,564

Under the terms of the debt, the minimum principal repayments of long-term debt and operating lease obligations by year are as follows (in thousands):

			Operating
	Mortgage		Leases		Total
2014		368		196		564
2015		384		61		445
2016		401		24		425
2017		419		—		419
2018 & Thereafter		6,014		—		6,014
	$	7,586	$	281	$	7,867

Under the Company’s operating lease agreements, the approximate future minimum obligation as of December 31, 2013 is as follows: $195,000 for real estate, $18,000 for automobiles and $68,000 for equipment.

The Company has operating leases for its Shanghai manufacturing operations that allow extensions. As of December 31, 2013, the future minimum lease commitment for this facility is approximately $86,000. The Company has an operating lease for its UK facility that expires in May 2015. As of December 31, 2013, the future minimum lease commitment for this facility is approximately $54,000 payable through May 2015. As of December 31, 2013, the future minimum lease commitment for the Singapore and Malaysia office is approximately $43,000 and $11,000, respectively.

Rent expense was approximately $421,000 in 2013, $390,000 in 2012 and $477,000 in 2011.

As an equipment manufacturer, the Company generates and disposes of small quantities of solid waste that are considered hazardous under Environmental Protection Agency (“EPA”) regulations. Because the Company historically used a waste disposal firm that disposed of the solid waste at a site that the EPA has designated as a Superfund site, the Company has been named by the EPA as one of the entities responsible for a portion of the expected clean-up costs. Based on the Company’s proportional responsibility, as negotiated with and agreed to by the EPA, the Company’s liability related to this matter is $225,140. This amount is included in Accrued Expense on the Consolidated Balance Sheet as of December 31, 2013. On October 2, 2009, in accordance with the agreement, the Company established a letter of credit for $225,140 to the benefit of the EPA for potential cash payments as settlements for the Company’s proportional liability.

39

(4)     FOREIGN OPERATIONS

The following table shows the amounts (in thousands) and percentages of the Company’s revenues by geographic region, for the last three years:

	2013				2012				2011
United States	$	8,541	18	%	$	8,756	15	%	$	13,199	17	%
Europe and Near East		6,647	14	%		9,242	16	%		5,759	8	%
Asia Pacific		29,138	61	%		38,606	66	%		53,052	70	%
Other Americas		3,428	7	%		1,485	3	%		4,118	5	%
Total Revenue	$	47,754			$	58,089			$	76,128

The following table shows the amounts (in thousands) of the Company’s tangible long-lived assets by geographic region, at December 31, 2013 and 2012:

	December 31,		December 31,
	2013		2012
United States	$	2,889	$	3,936
Asia Pacific		497		733
	$	3,386	$	4,669

(5)     CONCENTRATION OF CREDIT RISK AND SIGNIFICANT CUSTOMERS

The Company maintains the majority of its cash and cash equivalent balances with a small number of financial institutions who invest the funds in highly liquid financial instruments with terms not to exceed 90 days.

The Company has international subsidiaries in China, the United Kingdom, Singapore and Malaysia. These subsidiaries transact business in their functional or local currency. Therefore, the Company is exposed to foreign currency exchange risks and fluctuations in foreign currencies, along with economic and political instability in the foreign countries in which it operates, all of which could adversely impact its results of operations and financial condition. The Company’s revenues are primarily derived from customers in the electronics and alternative energy manufacturing industries who are not required to provide collateral for amounts owed to the Company. The Company’s customers are dispersed over a wide geographic area and are subject to periodic review under the Company’s credit policies. The Company does not believe that it is subject to any unusual credit risks, other than the normal level of risk due to operating its business.

Concentration of credit risk with respect to accounts receivable is limited to certain customers to whom the Company makes substantial sales. To reduce its credit risk, the Company routinely assesses the financial strength of its customers. The Company maintains an allowance for potential credit losses, but historically has not experienced any losses in excess of the loss allowance related to individual customers or groups of customers in any particular industry or geographic area.

One customer accounted for $8.2 million or 17.4% of total net sales in 2013. One customer accounted for $7.3 million or 12.5% of total net sales and another customer accounted for $6.5 million or 11.2% of total net sales in 2012. One customer accounted for $11.9 million or 15.6% of total net sales and another accounted for $7.9 million or 10.4% of total net sales in 2011. As of December 31, 2013, one customer accounted for more than 10% of accounts receivable comprising 14.0% of the total. As of December 31, 2012, two customers accounted for more than 10% of accounts receivable comprising 22.5% of the total.

40

(6)     INCOME TAXES

The components of loss before provision for income taxes are as follows (in thousands):

	Years Ended December 31,
	2013			2012			2011
Domestic	($	7,776	)	($	9,254	)	$	(2,366	)
Foreign		(2,401	)		(1,678	)		596
Total	($	10,177	)	($	10,932	)	$	(1,770	)

For the years ended December 31, 2013, 2012 and 2011, the Company’s provision for income taxes were as shown below (in thousands):

December 31, 2013	Federal		State		Foreign			Total
Current	$	—	$	2	$	437		$	439
Deferred		—		—	$	852			852
	$	—	$	2	$	1,289		$	1,291
December 31, 2012	Federal		State		Foreign			Total
Current	$	—	$	2	$	454		$	456
Deferred		—		—		(391	)		(391	)
	$	—	$	2	$	63		$	65
December 31, 2011	Federal		State		Foreign			Total
Current	$	—	$	28	$	1,001		$	1,029
Deferred		—		—		(77	)		(77	)
	$	—	$	28	$	924		$	952

The differences between the statutory United States federal income tax rate of 34% and the Company’s effective tax rate are as follows (in thousands):

	2013			2012			2011
Provision (Benefit) at Statutory Rate	($	3,460	)	($	3,752	)	$	(602	)
State Tax Net of Federal Benefit		(261	)		(92	)		29
Foreign Tax Rate Differential		327			320			(56	)
Losses and Credits not Benefitted		3,893			2,965			1,162
Non-deductible & Other		792			624			419
Net Provision	$	1,291		$	65		$	952

41

The components of the net deferred tax assets at December 31, 2013 and 2012 are as follows (in thousands):

Deferred Tax Assets:	2013			2012
Federal Net Operating Loss Carryforwards	$	3,051		$	1,674
State Net Operating Loss Carryforwards		360			163
Foreign Net Operating Loss Carryforwards		860			459
Inventory Reserve		3,753			3,441
Deferred Compensation		1,693			1,789
Federal, Foreign and Other Tax Credits		2,989			2,480
Accruals and Other		1,732			1,360
Intangibles		416			467
Total Deferred Tax Assets		14,854			11,833
Valuation Allowance		(14,854	)		(10,961	)
Deferred Tax Assets		—			872
Deferred Tax Liabilities:
Depreciation and Amortization		—			(40	)
Net Deferred Tax Assets	$	—		$	832

Deferred tax assets at December 31, 2012 are recorded in Other Assets.

The deferred tax valuation allowance increased by $3,893,000 and by $2,982,000 for the years ended December 31, 2013 and 2012, respectively. In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. The Company considers the scheduled reversal of deferred tax liabilities, projected future income, and tax planning strategies in making this assessment. We have recorded a full valuation allowance against the U.S and China manufacturing subsidiary net deferred tax assets since we believe that, after considering all of the available objective evidence, both positive and negative, historical and prospective, with greater weight given to historical evidence, it is not more likely than not that these assets will be realized.

The Company has federal net operating loss carryforwards of approximately $12,699,000 that expire between 2024 and 2033, $3,354,070 of which relates to excess tax deductions from share based payments, the tax benefit of which will be recorded as an increase in additional paid-in capital when the deduction reduces current taxes payable. The Company also has state net operating loss carryforwards of approximately $4,717,000 that expire between 2014 and 2033, $1,255,000 of the tax benefit will be recorded as an increase in additional paid-in-capital when the deduction reduces current taxes payable. The Company also has foreign tax credit carryforwards of approximately $2,941,000 that expire between 2018 and 2023, $253,265 of the tax benefit will be recorded as an increase in additional paid-in capital when the deduction reduces current taxes payable.

Undistributed earnings of the Company’s foreign subsidiaries amounted to approximately $2.7 million at December 31, 2013. The Company’s historical and continuing policy is that its undistributed foreign earnings are indefinitely reinvested and, accordingly, no related provision for U.S. federal and state income taxes has been provided on the $2.7 million of undistributed foreign earnings. The amount of taxes attributable to these undistributed earnings is immaterial.

The Company applies the provisions of FASB Interpretation No. 48 (“FIN 48”), “Accounting for Uncertainty in Income Taxes “, (now codified as FASB ASC 740, “Income Tax “). In this regard, an uncertain tax position represents the Company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax expense for financial reporting purposes.

42

A reconciliation of the beginning and ending amount of our unrecognized tax benefits is summarized as follows:

	2013		2012		2011
Balance at beginning of period		$151		$151	$	151
Increase (decrease) related to current year tax positions		—		—		—
Increase (decrease) related to prior year tax positions		(37)		—		—
Balance at end of period		$114		$151	$	151

The unrecognized tax benefits at December 31, 2013, if recognized, would reduce the Company’s effective tax rate in the period recognized. For the year ended December 31, 2013, there were no material changes to the total amount of unrecognized tax benefits. We do not expect any significant increases or decreases for uncertain tax positions during the next 12 months.

The Company’s major tax jurisdictions include the United States and China. The Company is no longer subject to U.S. state or local and non-U.S. income tax examinations by tax authorities in its major jurisdictions for years before 2007, except to the extent of net operating loss and tax credit carryforwards from those years. The Company’s policy is to recognize interest and penalties accrued on any unrecognized tax benefits as a component of income tax expense. There is no interest or penalties accrued at December 31, 2013.

(7)     EMPLOYEE BENEFITS

The Company has management incentive and profit sharing plans for its executives and all of its employees. These plans provide for bonuses upon the attainment of certain financial targets. Under these plans, $84,000, $70,000 and $217,000 was expensed in 2013, 2012 and 2011, respectively.

The Company has a deferred 401(k) contribution plan that is available to cover all domestic employees of the Company. Subject to non-discriminatory restrictions on highly compensated employees, participants can voluntarily contribute a percentage of their compensation up to the plan limits, and the Company, at its discretion, may match this contribution up to a stipulated percentage. The Company’s expense under the plan was approximately $234,000, $269,000 and $321,000 for the years ended December 31, 2013, 2012 and 2011, respectively.

(8)     STOCK OPTION AND PURCHASE PLANS

Stock Options

The Company accounts for share-based compensation in accordance with the provisions of SFAS No. 123R, Share-Based Payment (now codified as FASB ASC Topic 718, Compensation—Stock Compensation (“ASC 718”)). This statement establishes standards for accounting for transactions in which an entity exchanges its equity instruments for goods or services. The Company’s stock option compensation expense was approximately $574,000, $808,000 and $1,234,000 for the years ended December 31, 2013, 2012 and 2011 respectively. These amounts do not include expense related to restricted stock awards or the employee stock purchase plan.

The fair value of each option is estimated on the date of grant using the Black-Scholes option-pricing model. This model incorporates certain assumptions for inputs including a risk-free market interest rate, expected dividend yield of the underlying common stock, expected option life and expected volatility in the market value of the underlying common stock. The Company is also required to estimate forfeitures at the time of grant and revise those estimates in subsequent periods if actual forfeitures differ from those estimates. Historical data is used to estimate pre-vesting forfeitures and record stock-based compensation expense only for those awards that are expected to vest. Accordingly, awards ultimately expected to vest were reduced for annualized estimated

43

forfeitures of 4% for each of the years ended December 31, 2013, 2012 and 2011. We used the following assumptions for options issued during the years ended December 31, 2013, 2012 and 2011, respectively:

Calculation of Fair Values—Assumptions Used:	Dec. 31, 2013			Dec. 31, 2012			Dec. 31, 2011
Expected Volatility		65.6	%		66.6	%		63.7	%
Expected Life		4.19			4.15			4.64
Risk-Free Interest Rate		0.92	%		0.57	%		1.23	%
Expected Dividend Yield		0			0			0

Expected volatilities are based on the weighted average historical volatility of the Company’s common stock for the expected life of the option. The Company has significant historical data to help evaluate the expected lives of options in developing its assumption. The risk-free interest rate is based upon quoted market yields for United States Treasury debt securities with a term approximating the expected life of the options. The expected dividend yield is based upon the Company’s history of having never issued a dividend and management’s current expectation of future action surrounding dividends.

The Company has two stock option plans for employees, the 1993 Equity Incentive Plan (“1993 Plan”), which expired in 2003 with 254,791 unissued options, and the 2003 Equity Incentive Plan (“2003 Plan”). These plans allow for the award of stock and stock options to employees, directors and consultants. Under the terms of the plans, other stock awards can also be granted at the discretion of the Company’s board of directors. The Company also has two stock option plans for non-employee directors, the 1989 Stock Plan for Directors (“1989 Plan”), which expired in 2008 and the 1998 Stock Option Plan for Non-Employee Directors (“1998 Plan”). Under each plan, the exercise price of the options is not less than the fair market value at the date of the grant. Options expire from a minimum of two years to a maximum of ten years from the date of the grant. All new grants, for both employees and directors, are now issued from the same plan, the 2003 Plan.

In May 2003, the shareholders approved the 2003 Plan, which allows for up to 700,000 shares to be awarded (plus the addition of up to 300,000 options that could be forfeited under the expired 1993 Plan). Also in May 2003, the shareholders approved an amendment to add 70,000 shares to the 1998 Plan.

In May 2008, the shareholders approved an amendment to add 450,000 shares to the 2003 Plan. Also in May 2008, the shareholders approved an amendment to add 50,000 shares to the 1998 Plan.

In May 2011, the shareholders approved an amendment to add 600,000 shares to the 2003 Plan.

Shares available for future stock option and restricted stock unit grants, pursuant to the 2003 Plan and the 1998 Plan were 701,986 at December 31, 2013.

A summary of all stock option activity for the years ended December 31, 2013, 2012 and 2011 is as follows:

	2013					2012					2011
	Number of Shares			Weighted Average Price per Share		Number of Shares			Weighted Average Price per Share		Number of Shares			Weighted Average Price per Share
Outstanding at beginning of year		1,353,141		$	6.20		1,299,358		$	6.72		1,277,264		$	6.56
Granted		222,060			2.80		217,695			2.54		180,855			6.24
Exercised		—			—		(3,250	)		3.00		(122,220	)		4.26
Forfeited/Cancelled		(166,509	)		9.29		(160,662	)		5.48		(36,541	)		7.04
Outstanding at end of year		1,408,692		$	5.30		1,353,141		$	6.20		1,299,358		$	6.72
Options exercisable at end of year		980,932		$	6.01		855,671		$	7.21		666,797		$	7.57

44

At December 31, 2013, the outstanding options have exercise prices ranging from $2.00 to $11.93 and a weighted average remaining contractual life of 3.61 years. There were no options exercised during the year ended December 31, 2013. There were 61,810 exercisable in-the-money options as of December 31, 2013.

The following table summarizes information for options outstanding and for options exercisable at December 31, 2013:

			Options Outstanding				Options Exercisable
Range of Prices	Number		Weighted Average Remaining Life		Weighted Average Exercise Price		Number		Weighted Average Exercise Price
2.00 to 3.00		230,293		5.86	$	2.26		61,810	$	2.12
3.01 to 3.34		202,966		5.72		3.18		60,239		3.10
3.35 to 5.01		366,611		2.66		4.22		335,011		4.28
5.02 to 6.68		258,492		2.96		5.62		230,992		5.65
6.69 to 8.35		99,420		3.71		7.01		76,020		7.02
8.36 to 10.02		71,300		4.26		9.06		37,250		9.08
10.03 to 11.69		97,010		1.41		10.08		97,010		10.08
11.70 to 11.93		82,600		0.38		11.93		82,600		11.93
		1,408,692		3.61	$	5.30		980,932	$	6.01

The aggregate intrinsic value of the outstanding options represents the total pre-tax intrinsic value, based on the Company’s closing stock price of $3.01 as of December 31, 2013 which would have been received by the option holders had all option holders exercised their options as of that date. As of December 31, 2013, there was $640,968 of total unrecognized compensation cost related to non-vested options granted under all of the Company’s option plans. That cost is expected to be recognized over a weighted average period of 1.39 years. The total fair value of shares vested during the year ended December 31, 2013 was $617,667.

A summary of the status of the Company’s non-vested options as of December 31, 2013 and 2012 is presented below:

	December 31, 2013					December 31, 2012
Nonvested Activity:	Shares			Weighted- Fair Value		Shares			Weighted- Fair Value
Balance—Beginning		497,470		$	2.38		632,561		$	3.60
Granted		222,060		$	1.42		217,695		$	1.29
Vested		(265,995	)	$	2.32		(272,490	)	$	4.13
Nonvested Forfeited		(25,775	)	$	2.29		(80,296	)	$	3.07
Nonvested		427,760		$	1.92		497,470		$	2.38

Restricted Stock Units

In June and November 2013, the Company granted 20,250 and 17,050 RSUs to various employees. The fair value of the RSUs at the date of the grant in June and November 2013 was $2.35 and $3.27, respectively. These RSUs vest over a two-year term. The Company has recorded compensation expense of $43,117 and $9,137 during the years ended December 31, 2013 and December 31, 2012, respectively, related to these grants. As of December 31, 2013, there was $95,786 of unrecognized compensation costs related to these grants. These grants have a remaining life of 1.50 years.

The Company has an Employee Stock Purchase Plan. Under the terms of the plan, employees are entitled to purchase shares of common stock at the lower of 85% of fair market value at either the beginning or the end of

45

each six-month option period. A total of 500,000 shares have been reserved for issuance under this plan, of which 38,295 remain available at December 31, 2013. During 2013, a total of 16,827 shares were purchased at prices ranging from $1.80 to $2.17 per share. The Company has recorded a compensation charge of $13,200, $18,721, and $38,417 in 2013, 2012 and 2011, respectively, related to this plan.

(9)     DISCLOSURES ABOUT THE FAIR VALUE OF FINANCIAL INSTRUMENTS

In accordance with the requirements of FASB ASC Topic 820, Fair Value Measurements and Disclosures (“ASC 820”) , the Company groups its financial assets and liabilities measured at fair value on a recurring basis in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

• Level 1—Valuation is based upon quoted market price for identical instruments traded in active markets.

• Level 2—Valuation is based on quoted market prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.

• Level 3—Valuation is generated from model-based techniques that use significant assumptions not observable in the market. Valuation techniques include use of discounted cash flow models and similar techniques.

In accordance with the requirements of ASC 820, it is the Company’s policy to maximize the use of observable inputs and minimize the use of unobservable inputs when developing fair value measurements. When available, the Company uses quoted market prices to measure fair value. If market prices are not available, the fair value measurement is based on models that use primarily market based parameters including interest rate yield curves, option volatilities and currency rates. In certain cases where market rate assumptions are not available, the Company is required to make judgments about assumptions market participants would use to estimate the fair value of a financial instrument. Changes in the underlying assumptions used, including discount rates and estimates of future cash flows, could significantly affect the results of current or future values.

At December 31, 2013 and 2012, the Company did not have any financial assets and liabilities that required being measured at fair value in accordance with ASC 820.

The carrying amounts of the Company’s cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value due to the instruments’ short-term nature. Long-term debt is also reported at carrying value and approximates fair value as the interest rate on the mortgage note payable of 4.43% approximates the current market interest rate.

(10)     SEGMENT REPORTING

Segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision-maker in deciding how to allocate resources and in assessing performance. The Company operates as a single business segment called Thermal Processing Capital Equipment.

The Thermal Processing Capital Equipment segment consists of the designing, manufacturing, selling and servicing of thermal processing equipment and related process controls for use in the electronics, alternative energy, automotive and other industries. This business segment includes the supply of solder reflow systems used for surface mount applications in printed circuit board assembly. Thermal processing equipment is used in: low temperature curing/encapsulation; hybrid integrated circuit manufacturing; integrated circuit packaging and sealing; and processing multi-chip modules. In addition, the thermal process equipment is used for solar cell

46

processing, sintering nuclear fuel for commercial power generation, as well as brazing and the sintering of ceramics and powdered metals, and the deposition of precise thin film coatings. The business segment’s customers are multinational original equipment manufacturers and contract manufacturing companies.

(11)     SELECTED QUARTERLY FINANCIAL INFORMATION (Unaudited)

The following tables set forth selected quarterly financial information for the fiscal years ended December 31, 2013 and 2012. The operating results for any given quarter are not necessarily indicative of results for any future period.

	Quarters Ended
	Apr. 01, 2012			July 01, 2012			Sep. 30, 2012			Dec. 31, 2012			March 31, 2013			June 30, 2013			Sep. 29, 2013			Dec. 31, 2013
	(in thousands, except per share data)
Net sales	$	16,272		$	14,598		$	14,137		$	13,082		$	10,503		$	14,244		$	12,014		$	10,993
Cost of goods sold		10,994			9,891			10,018			10,714			7,773			8,850			8,480			7,945
Gross profit		5,278			4,707			4,119			2,368			2,730			5,394			3,534			3,048
Selling, general and administrative		5,413			5,240			4,925			5,387			4,653			4,355			6,228			4,550
Research, development and engineering		1,482			1,306			1,333			1,329			1,134			1,017			1,276			1,177
Restructuring		55			121			—			248			—			—			—			—
Operating income (loss)		(1,672	)		(1,960	)		(2,139	)		(4,596	)		(3,057	)		22			(3,970	)		(2,679	)
Interest expense, net		(98	)		(98	)		(104	)		(99	)		(101	)		(96	)		(90	)		(78	)
Foreign exchange gain (loss)		(62	)		10			(3	)		(169	)		(76	)		(38	)		(33	)		(46	)
Other income, net		—			1			1			56			41			5			17			2
Loss before provision
(benefit) for income taxes		(1,832	)		(2,047	)		(2,245	)		(4,808	)		(3,193	)		(107	)		(4,076	)		(2,801	)
Provision (benefit) for income taxes		175			102			153			(365	)		(69	)		154			998			208
Net loss	$	(2,007	)	$	(2,149	)	$	(2,398	)	$	(4,443	)	$	(3,124	)	$	(261	)	$	(5,074	)	$	(3,009	)
Loss per share:
Basic	$	(0.21	)	$	(0.23	)	$	(0.25	)	$	(0.47	)	$	(0.33	)	$	(0.03	)	$	(0.53	)	$	(0.32	)
Diluted	$	(0.21	)	$	(0.23	)	$	(0.25	)	$	(0.47	)	$	(0.33	)	$	(0.03	)	$	(0.53	)	$	(0.32	)
Weighted average number of shares outstanding:
Basic		9,502			9,503			9,516			9,516			9,531			9,532			9,545			9,548
Diluted		9,502			9,503			9,516			9,516			9,531			9,532			9,545			9,548

47

	Quarters Ended
	Apr. 01,			July 01,			Sep. 30,			Dec. 31,			March 31,			June 30,			Sep. 29,			Dec. 31,
	2012			2012			2012			2012			2013			2013			2013			2013
PERCENTAGE OF NET SALES:
Net sales		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%
Cost of goods sold		67.6	%		67.8	%		70.9	%		81.9	%		74.0	%		62.1	%		70.6	%		72.3	%
Gross profit		32.4	%		32.2	%		29.1	%		18.1	%		26.0	%		37.9	%		29.4	%		27.7	%
Selling, general and administrative		33.3	%		35.9	%		34.8	%		41.2	%		44.3	%		30.6	%		51.8	%		41.4	%
Research, development and engineering		9.1	%		8.9	%		9.4	%		10.2	%		10.8	%		7.1	%		10.6	%		10.7	%
Restructuring		0.3	%		0.8	%		0.0	%		1.9	%		0.0	%		0.0	%		0.0	%		0.0	%
Operating income (loss)		(10.3	)%		(13.4	)%		(15.1	)%		(35.1	)%		(29.1	)%		0.2	%		(33.0	)%		(24.4	)%
Interest expense, net		(0.6	)%		(0.7	)%		(0.7	)%		(0.8	)%		(1.0	)%		(0.7	)%		(0.7	)%		(0.7	)%
Foreign exchange gain (loss)		(0.4	)%		0.1	%		(0.0	)%		(1.3	)%		(0.7	)%		(0.3	)%		(0.3	)%		(0.4	)%
Other income, net		0.0	%		0.0	%		0.0	%		0.4	%		0.4	%		0.0	%		0.1	%		0.0	%
Loss before provision (benefit) for income taxes		(11.3	)%		(14.0	)%		(15.9	)%		(36.8	)%		(30.4	)%		(0.8	)%		(33.9	)%		(25.5	)%
Provision (benefit) for income taxes		1.1	%		0.7	%		1.1	%		(2.8	)%		(0.7	)%		1.1	%		8.3	%		1.9	%
Net loss		(12.3	)%		(14.7	)%		(17.0	)%		(34.0	)%		(29.7	)%		(1.8	)%		(42.2	)%		(27.4	)%

48

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE.

None.

ITEM 9A. CONTROLS AND PROCEDURES

1. Evaluation of Disclosure Controls and Procedures

The Company’s management is responsible for establishing and maintaining disclosure controls and procedures, as defined by the SEC. The Company maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed in the Company’s Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Operating Officer and Principal Financial and Accounting Officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

The Company’s management carried out an evaluation, under the supervision and with the participation of the Chief Executive Officer and the Chief Operating Officer and Principal Financial and Accounting Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of December 31, 2013, pursuant to the evaluation of these controls and procedures required by Rule 13a-15 of the Securities Exchange Act of 1934.

Based upon that evaluation, management concluded, as of the period covered by this Annual Report on Form 10-K, that our disclosure controls and procedures were effective.

2. Management’s Annual Report on Internal Control over Financial Reporting

The management of the Company is responsible for establishing and maintaining adequate internal control over its financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. The Company’s internal control over financial reporting is a process designed under the supervision of the Company’s Chief Executive Officer and Chief Operating Officer and Principal Financial and Accounting Officer to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the Company’s financial statements for external reporting purposes in accordance with U.S. generally accepted accounting principles.

A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the Company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the Company are being made only in accordance with authorizations of management and directors of the Company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the Company’s assets that could have a material effect on the consolidated financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

49

The Company’s management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2013, based on the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in “Internal Control—Integrated Framework.” Management’s assessment of the Company’s internal control over financial reporting as of December 31, 2013 identified no material weaknesses in the Company’s internal control over financial reporting. As a result, management concluded that the Company’s internal control over financial reporting was effective as of December 31, 2013. Management believes that the consolidated financial statements included in this Annual Report on Form 10-K fairly present, in all material respects, the Company’s financial position, results of operations and cash flows for the periods presented.

3. Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during the quarter ended December 31, 2013 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

ITEM 9B. OTHER INFORMATION

None.

50

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The following table lists our executive officers and their ages. Executive officers are elected by, and serve at the pleasure of, the board of directors. Following the table is a description of the business experience of each of our executive officers

Name	Age		Position
Paul J. van der Wansem		74	Chairman and Chief Executive Officer (principal executive officer)
Peter J. Tallian		55	Chief Operating Officer, and Principal Financial and Accounting Officer (principal financial and accounting officer)
James M. Griffin		56	Vice President Sales and Service, and Corporate Officer
John J. McCaffrey, Jr.		62	Vice President Operations and Engineering, and Corporate Officer

Paul J. van der Wansem , the Chairman of our board of directors since 1979, returned as our Chief Executive Officer in October 2004 after a two-year hiatus. He previously served as our Chief Executive Officer from 1979 to July of 2002. From December 1977 to 1981, he served as Vice President of Holec, N.V., a Dutch electronics company, and from 1978 through 1981 he was President of Holec (USA), Inc. From 1973 to 1977, Mr. van der Wansem worked as a Management Consultant for the Boston Consulting Group, Inc., and from 1970 through 1973, Mr. van der Wansem worked as an Adjunct Director of First National City Bank in Amsterdam and New York. Mr. van der Wansem received an undergraduate degree in automotive engineering from Bromsgrove College, England, and holds an M.B.A. from IMD, Switzerland.

Peter J. Tallian was named Chief Operating Officer of BTU in November, 2012. He joined BTU as our Chief Financial Officer in April 2009. He previously served as Chief Financial Officer of Distributed Energy Systems Corporation and Chief Accounting Officer of Northern Power Systems, Inc., companies that serve the alternative energy market, from October 2006 to April 2009. Prior to that, Mr. Tallian served as Senior Vice President, Chief Financial Officer and Treasurer at Transwitch Corporation, a leading provider of semiconductor solutions to the communications industry. He also served as Executive Vice President and Chief Financial Officer of Metavante Corporation. Mr. Tallian began his career in finance with a number of strategic roles at IBM. Mr. Tallian holds a bachelor’s degree in economics from the Wharton School of the University of Pennsylvania and an M.B.A. from the University of Chicago.

James M. Griffin has been our Vice President Sales and Service since April 2005. Previously, Mr. Griffin was our Vice President Sales-Americas, and has held a number of positions within our sales organization. He has been with us for 29 years. Mr. Griffin attended Worcester Polytechnic Institute in the mechanical engineering program.

John J. McCaffrey, Jr . joined BTU in early 2008 as Vice President Operations and Engineering. After graduating from the U.S. Naval Academy and serving as a nuclear engineer officer, he held a variety of positions at Polaroid. Mr. McCaffrey joined Evergreen Solar as a startup in 1999, where he designed, built, and operated their U.S. pilot and initial manufacturing facilities, achieving required margin and revenue targets. He next worked with Q Cells to design the initial 30 megawatt EverQ factory in Germany. He then moved to Daystar Technologies, a CIGS thin film solar company, setting up their pilot line for foil, and led the initial design for their 25 megawatt glass manufacturing facility in California. Mr. McCaffrey was also responsible for product development at both companies.

Information relating to the directors of the Company is included under the caption “Election of Directors” in the 2014 Proxy Statement and is incorporated herein by reference. Other information regarding the directors of

51

the Company and other corporate governance matters relating to the Company and required by this Item 10 is also included under the caption “[—]” in the 2014 Proxy Statement and is incorporated herein by reference.

Information related to compliance with Section 16(a) of the Exchange Act is included under the caption “Section 16(a) Beneficial Ownership Reporting Compliance” in the 2014 Proxy Statement and is incorporated herein by reference.

We have adopted a code of ethics that applies to all employees, as well as our principal executives, that is available on our website, www.btu.com. Any person may request to receive a copy of our code of ethics by contacting Peter Tallian at (978) 667-4111 or at 23 Esquire Road, North Billerica, Massachusetts. We will post any amendments or waivers to our code of ethics applicable to our principal executive officer, principal financial officer, principal accounting officer or people performing similar functions on our website.

ITEM 11. EXECUTIVE COMPENSATION

Information relating to executive compensation is included under the caption “Executive Compensation” in the 2014 Proxy Statement and is incorporated herein by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The following chart sets forth information for the year ended December 31, 2013, regarding equity based compensation plans of the Company.

Equity Compensation Plan Information

Plan Category	Number of securities to be issued upon exercise of outstanding options, warrants and rights		Weighted-average exercise price of outstanding options, warrants and rights		Number of securities remaining available for future issuance under equity compensation plans (excluding securities to be issued)
Equity compensation plans approved by security holders		1,454,292	$	5.30		701,986
Equity compensation plans not approved by security holders		N/A		N/A		N/A
Total		1,454,292	$	5.30		701,986

Information relating to the security ownership of certain beneficial owners and management is included under the caption “Beneficial Ownership of Shares” in the 2014 Proxy Statement and is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE MATTERS

There were no transactions with related persons during 2013 or 2012. Information relating to director independence is included under the caption “Election of Directors” in the 2014 Proxy Statement and is incorporated herein by reference.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

Information relating to the principal accounting fees and services is included under the caption “Principal Accounting Fees and Services” in the 2014 Proxy Statement and is incorporated herein by reference.

52

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a)1. Financial Statements. The financial statements listed in Item 8: FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA, above are filed as part of this Annual Report on Form 10-K.

2. Financial Statement Schedule. The financial statement Schedule II—VALUATION AND QUALIFYING ACCOUNTS is filed as part of this Annual Report on Form 10-K.

3. Exhibits.

53

Schedule II

BTU INTERNATIONAL, INC.

VALUATION AND QUALIFYING ACCOUNTS

(in thousands)

For the Year Ended December 31, 2013

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses			Charged to Other Accounts		Deductions- (A)			Balance at End of Period
Allowance for doubtful accounts	$	1,583	$	(266	)	$	—	$	(37	)	$	1,280

For the Year Ended December 31, 2012

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts		Deductions- (A)			Balance at End of Period
Allowance for doubtful accounts	$	246	$	1,383	$	—	$	(46	)	$	1,583

For the Year Ended December 31, 2011

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses			Charged to Other Accounts		Deductions- (A)			Balance at End of Period
Allowance for doubtful accounts	$	327	$	(58	)	$	—	$	(23	)	$	246

A) Amounts indicated as deductions are for amounts charged against these reserves in the ordinary course of business or the reduction of required reserves based on management’s evaluation of the accounts considered to be uncollectable.

54

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: March 13, 2014

BTU INTERNATIONAL, INC.
By:	/S/ PAUL J. VAN DER WANSEM
	Paul J. van der Wansem, President, Chief Executive Officer (principal executive officer) and Chairman of the Board of Directors

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Date: March 13, 2014

By:	/S/ PAUL J. VAN DER WANSEM
	Paul J. van der Wansem, President, Chief Executive Officer (principal executive officer) and Chairman of the Board of Directors

Date: March 13, 2014

By:	/S/ PETER J. TALLIAN
	Peter J. Tallian, Chief Operating Officer and Principal Financial and Accounting Officer (principal financial and accounting officer)

Date: March 13, 2014

By:	/S/ JOSEPH F. WRINN
	Joseph F. Wrinn, Director

Date: March 13, 2014

By:	/S/ JOHN E. BEARD
	John E. Beard, Director

Date: March 13, 2014

By:	/S/ G. MEAD WYMAN
	G. Mead Wyman, Director

Date: March 13, 2014

By:	/S/ J. SAMUEL PARKHILL
	J. Samuel Parkhill, Director

Date: March 13, 2014

By:	/S/ BERTRAND LOY
	Bertrand Loy, Director

55

EXHIBIT INDEX

The following designated exhibits are, as indicated below, either filed herewith or have heretofore been filed with the Securities and Exchange Commission under the Securities Act of 1933 and the Securities Exchange Act of 1934 and are referred to and incorporated herein by reference to the following SEC Filings: Registration Statement Filing on Form S-1 (“33-24882”), the annual report as reported on the the annual report as reported on the 1999 Form 10-K (“1999 10-K”), the annual report as reported on the 2002 Form 10-K (“2002 10-K”), the annual report as reported on the 2004 Form 10-K (“2004 10-K”), the annual report as reported on the 2005 Form 10-K (“2005 10-K”), the annual report as reported on the 2009 Form 10-K (“2009 10-K”), the annual report as reported on the 2012 Form 10-K (“2012 10-K”) the quarterly report as reported on 7-1-01 Form 10-Q (“7-1-01 10-Q”), the quarterly report as reported on 6-1-07 Form 10-Q (“6-1-07 10-Q”), the quarterly report as reported on 3-29-09 Form 10-Q (“3-29-09 10-Q”), the proxy statement as reported on the 5-16-03 Schedule 14A (“2003 Proxy”), the proxy statement as reported on the 4-21-08 Schedule 14A (“2008 Proxy”), the proxy statement as reported on the 4-17-09 Schedule 14A (“2009 Proxy”), or the current report as reported on 10-2-13 Form 8-K (“10-2-13 8-K”). All exhibits incorporated by reference from the Company’s annual or quarterly reports are from File number 000-17297.

			Exhibit		SEC Docket
EXHIBIT	3.	ARTICLES OF INCORPORATION AND BY-LAWS
	3.1	Amended and Restated Certificate of Incorporation		3.1	7-1-01 10-Q
	3.2	Amended and Restated By-Laws		3.2	6-29-08 10-Q
EXHIBIT	4.	INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING DEBENTURES
	4.0	Specimen Common Stock Certificate		4.0	33-24882
EXHIBIT	10.	MATERIAL CONTRACTS
*	10.1	1988 Employee Stock Purchase Plan		10.1	1999 10-K
*	10.2	Amendment No. 1 to 1988 Employee Stock Purchase Plan dated June 15, 1989		10.2	1999 10-K
*	10.3	Amendment No. 2 to 1988 Employee Stock Purchase Plan dated February 20, 1991		10.3	1999 10-K
*	10.4	1998 Stock Option Plan for Non-Employee Directors		10.4	1999 10-K
*	10.5	Amendment No. 1 to 1998 Stock Option Plan for Non-Employee Directors		10.5	2008 Proxy
*	10.6	Executive Retirement Agreement		10.6	2002 10-K
*	10.7	2003 Equity Incentive Plan		10.7	2003 Proxy
*	10.8	Amendment No. 1 to the 2003 Equity Incentive Plan		10.8	2008 Proxy
*	10.9	Amendment No. 2 to the 2003 Equity Incentive Plan		10.9	2009 Proxy
*	10.10	Employment contract between the Company and Paul J. van der Wansem		10.10	2005 10-K
*	10.11	Officer’s Retention Agreement		10.11	2005 10-K
	10.12	Second Amended and Restated Commercial Real Estate Promissory Note in favor of Salem Five dated September 26, 2013		10.12	10-2-13 8-K
	10.13	Amended and Restated Loan Agreement dated as of December 31, 2006 with Sovereign Bank		10.13	6-1-07 10-Q
	10.14	Offer Letter to John J. McCaffrey Jr.		10.14	3-29-09 10-Q
	10.15	Retention Agreement with John J. McCaffrey Jr.		10.15	3-29-09 10-Q
	10.16	Offer Letter to Peter J. Tallian		10.16	3-29-09 10-Q
	10.17	Retention Agreement with Peter J. Tallian		10.17	3-29-09 10-Q
	10.18	Retention Agreement with James M. Griffin		10.18	2009 10-K
	10.19	Second Loan Modification Agreement between the Company and Salem Five dated September 26, 2013		10.19	10-2-13 8-K
	10.20	Form of Amendment to Peter J. Tallian’s Offer Letter and Retention Agreement		10.20	2012 10-K

56

			Exhibit		SEC Docket
EXHIBIT	21.	SUBSIDIARIES OF THE REGISTRANT
	21.0	Subsidiaries of the Registrant.		21.0	2004 10-K
EXHIBIT	23.	CONSENTS OF EXPERTS AND COUNSEL
	23.1	Consent of KPMG LLP			**
EXHIBIT	31.	CERTIFICATIONS
	31.1	Certification			**
	31.2	Certification			**
	32.1	Section 906 Certification			**
	32.2	Section 906 Certification			**
EXHIBIT	101	XBRL DOCUMENTS
	101.	INS XBRL Instance Document			**
	101.	SCH XBRL Taxonomy Extension Schema Document			**
	101.	CAL XBRL Taxonomy Calculation Linkbase Document			**
	101.	DEF XBRL Taxonomy Extension Definition Linkbase Document			**
	101.	LAB XBRL Taxonomy Label Linkbase Document			**
	101.	PRE XBRL Taxonomy Presentation Linkbase Document			**

* designates management contracts or compensatory plans or agreements

** filed herewith

57

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors

BTU International, Inc.:

We consent to the incorporation by reference in the registration statement (No. 333-183189) on Form S-3 and (Nos. 333-168553, 333-125923, 333-125924, 333-155963, 333-94713, 333-63298 and 333-176221) on Form S-8 of BTU International, Inc. of our report dated March 13, 2014 with respect to the consolidated balance sheets of BTU International, Inc. and subsidiaries as of December 31, 2013 and 2012, and the related consolidated statements of operations, comprehensive income (loss), stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2013, and the related financial statement schedule, which report appears in the December 31, 2013 annual report on Form 10-K of BTU International, Inc.

/s/ KPMG LLP

Boston, Massachusetts

March 13, 2014

EX-31.1

Exhibit 31.1

CERTIFICATIONS

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Paul J. van der Wansem, certify that:

1. I have reviewed this annual report on Form 10-K of BTU International, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 13, 2014

/s/ Paul J. van der Wansem

President, Chief Executive Officer and

Chairman of the Board of Directors

EX-31.2

Exhibit 31.2

CERTIFICATIONS

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Peter J. Tallian, certify that:

1. I have reviewed this annual report on Form 10-K of BTU International, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 13, 2014

/s/ Peter J. Tallian

Peter J. Tallian

Chief Operating Officer and Principal

Financial and Accounting Officer

(principal financial and accounting officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 1350, Chapter 63 of Title 18, United States Code, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned, as President and Chief Executive Officer of BTU International, Inc. (the “Company”), does hereby certify that to his knowledge:

1) the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the periods covered by the Report.

/s/ Paul van der Wansem

Paul van der Wansem

President, Chief Executive Officer and Chairman of

the Board

Dated: March 13, 2014

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 1350, Chapter 63 of Title 18, United States Code, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned, as Chief Financial Officer and Principal Accounting Officer of BTU International, Inc. (the “Company”), does hereby certify that to his knowledge:

1) the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the periods covered by the Report.

/s/ Peter J. Tallian

Peter J. Tallian

Chief Operating Officer and Principal Financial

and Accounting Officer (principal

financial and accounting officer)

Dated: March 13, 2014

XML

Debt, Capital Leases, Commitment and Contingencies - Minimum Principal Repayments of Long-term Debt and Operating Lease (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Disclosure [Abstract]
2014 Mortgage	$ 368
2015 Mortgage	384
2016 Mortgage	401
2017 Mortgage	419
2018 & Thereafter Mortgage	6,014
Mortgage note payable, interest rate of 4.43% and 5.50% at December 31, 2013 and December 31, 2012, respectively	7,586	7,964
2014 Operating Leases	196
2015 Operating Leases	61
2016 Operating Leases	24
2017 Operating Leases
2018 & Thereafter Operating Leases
Total Operating Leases	281
2014	564
2015	445
2016	425
2017	419
2018 & Thereafter	6,014
Total minimum principal repayments of long-term debt and operating lease obligations	$ 7,867

XML

Stock Option and Purchase Plans - Summary of the Status of the Company's Non-vested Options (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Shares	1,353,141	1,299,358	1,277,264
Shares, Granted	222,060	217,695	180,855
Shares, Nonvested Forfeited	(166,509)	(160,662)	(36,541)
Ending Balance, Shares	1,408,692	1,353,141	1,299,358
Non-Vested Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Shares	497,470	632,561
Shares, Granted	222,060	217,695
Shares, Vested	(265,995)	(272,490)
Shares, Nonvested Forfeited	(25,775)	(80,296)
Ending Balance, Shares	427,760	497,470
Weighted Fair Value, Beginning Balance	$ 2.38	$ 3.60
Weighted Fair Value, Granted	$ 1.42	$ 1.29
Weighted Fair Value, Vested	$ 2.32	$ 4.13
Weighted Fair value, Nonvested Forfeited	$ 2.29	$ 3.07
Weighted Fair Value, Ending Balance	$ 1.92	$ 2.38

XML

Income Taxes - Reconciliation of the Beginning and Ending Amount of our Unrecognized Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 151	$ 151	$ 151
Increase (decrease) related to current year tax positions
Increase (decrease) related to prior year tax positions	(37)
Balance at end of period	$ 114	$ 151	$ 151

XML

Disclosures about the Fair Value of Financial Instruments - Additional Information (Detail) (USD $)			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Mortgage Note Payable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets measured at fair value	$ 0	$ 0
Financial liabilities measured at fair value	$ 0	$ 0
Interest rate on the mortgage note payable			4.43%

XML

Income Taxes - Differences Between the Statutory United States Federal Income Tax Rate and Effective Tax Rate (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Provision (Benefit) at Statutory Rate										$ (3,752)	$ (602)
State Tax Net of Federal Benefit									(261)	(92)	29
Foreign Tax Rate Differential									327	320	(56)
Losses and Credits not Benefitted									3,893	2,965	1,162
Non-deductible & Other									792	624	419
Net Provision	$ 208	$ 998	$ 154	$ (69)	$ (365)	$ 153	$ 102	$ 175	$ 1,291	$ 65	$ 952

XML

Accrued Expenses - Schedule of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Liabilities Disclosure [Abstract]
Accrued commissions	$ 1,086	$ 935
Accrued warranty	379	393	497
Accrued taxes	1,858	1,817
Accrued audit	419	388
Accrued legal	1,430	240
Accrued bonus	85	87
Payroll and payroll taxes	688	793
Accrued cost of sales	142	300
Accrued restructuring		111
Other	274	83
Accrued expenses	$ 6,361	$ 5,147

XML

Selected Quarterly Financial Information - Summary of Percentage of Net Sales of Selected Quarterly Financial Information (Detail)	3 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012
PERCENTAGE OF NET SALES:
Net sales	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%
Cost of goods sold	72.30%	70.60%	62.10%	74.00%	81.90%	70.90%	67.80%	67.60%
Gross profit	27.70%	29.40%	37.90%	26.00%	18.10%	29.10%	32.20%	32.40%
Selling, general and administrative	41.40%	51.80%	30.60%	44.30%	41.20%	34.80%	35.90%	33.30%
Research, development and engineering	10.70%	10.60%	7.10%	10.80%	10.20%	9.40%	8.90%	9.10%
Restructuring	0.00%	0.00%	0.00%	0.00%	1.90%	0.00%	0.80%	0.30%
Operating income (loss)	(24.40%)	(33.00%)	0.20%	(29.10%)	(35.10%)	(15.10%)	(13.40%)	(10.30%)
Interest expense, net	(0.70%)	(0.70%)	(0.70%)	(1.00%)	(0.80%)	(0.70%)	(0.70%)	(0.60%)
Foreign exchange gain (loss)	(0.40%)	(0.30%)	(0.30%)	(0.70%)	(1.30%)	0.00%	0.10%	(0.40%)
Other income, net	0.00%	0.10%	0.00%	0.40%	0.40%	0.00%	0.00%	0.00%
Loss before provision for income taxes	(25.50%)	(33.90%)	(0.80%)	(30.40%)	(36.80%)	(15.90%)	(14.00%)	(11.30%)
Provision (benefit) for income taxes	1.90%	8.30%	1.10%	(0.70%)	(2.80%)	1.10%	0.70%	1.10%
Net loss	(27.40%)	(42.20%)	(1.80%)	(29.70%)	(34.00%)	(17.00%)	(14.70%)	(12.30%)

XML

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

The components of loss before provision for income taxes are as follows (in thousands):

	Years Ended December 31,
	2013			2012			2011
Domestic	($	7,776	)	($	9,254	)	$	(2,366	)
Foreign		(2,401	)		(1,678	)		596
Total	($	10,177	)	($	10,932	)	$	(1,770	)

Provision (Benefit) for Income Taxes

For the years ended December 31, 2013, 2012 and 2011, the Company’s provision for income taxes were as shown below (in thousands):

December 31, 2013	Federal		State		Foreign			Total
Current	$	0	$	2	$	437		$	439
Deferred		0		0	$	852			852
	$	0	$	2	$	1,289		$	1,291
December 31, 2012	Federal		State		Foreign			Total
Current	$	—	$	2	$	454		$	456
Deferred		—		—		(391	)		(391	)
	$	—	$	2	$	63		$	65
December 31, 2011	Federal		State		Foreign			Total
Current	$	—	$	28	$	1,001		$	1,029
Deferred		—		—		(77	)		(77	)
	$	—	$	28	$	924		$	952

Differences Between the Statutory United States Federal Income Tax Rate and Effective Tax Rate

The differences between the statutory United States federal income tax rate of 34% and the Company’s effective tax rate are as follows (in thousands):

	2013			2012			2011
Provision (Benefit) at Statutory Rate	($	3,460	)	($	3,752	)	$	(602	)
State Tax Net of Federal Benefit		(261	)		(92	)		29
Foreign Tax Rate Differential		327			320			(56	)
Losses and Credits not Benefitted		3,893			2,965			1,162
Non-deductible & Other		792			624			419
Net Provision	$	1,291		$	65		$	952

Net Deferred Tax Assets

The components of the net deferred tax assets at December 31, 2013 and 2012 are as follows (in thousands):

Deferred Tax Assets:	2013			2012
Federal Net Operating Loss Carryforwards	$	3,051		$	1,674
State Net Operating Loss Carryforwards		360			163
Foreign Net Operating Loss Carryforwards		860			459
Inventory Reserve		3,753			3,441
Deferred Compensation		1,693			1,789
Federal, Foreign and Other Tax Credits		2,989			2,480
Accruals and Other		1,732			1,360
Intangibles		416			467
Total Deferred Tax Assets		14,854			11,833
Valuation Allowance		(14,854	)		(10,961	)
Deferred Tax Assets		—			872
Deferred Tax Liabilities:
Depreciation and Amortization		—			(40	)
Net Deferred Tax Assets	$	—		$	832

Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of our unrecognized tax benefits is summarized as follows:

	2013		2012		2011
Balance at beginning of period		$151		$151	$	151
Increase (decrease) related to current year tax positions		—		—		—
Increase (decrease) related to prior year tax positions		(37)		—		—
Balance at end of period		$114		$151	$	151

XML

Stock Option and Purchase Plans - Additional Information (Detail) (USD $)	12 Months Ended						1 Months Ended				1 Months Ended				12 Months Ended		1 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Stock Options [Member] OptionPlan	Dec. 31, 2012 Stock Options [Member]	Dec. 31, 2011 Stock Options [Member]	May 31, 2003 Stock Options [Member] 1993 Plan [Member]	May 31, 2008 Stock Options [Member] 1998 Plan [Member]	May 31, 2003 Stock Options [Member] 1998 Plan [Member]	Dec. 31, 2013 Stock Options [Member] 1998 Plan [Member]	May 31, 2011 Stock Options [Member] 2003 Plan [Member]	May 31, 2008 Stock Options [Member] 2003 Plan [Member]	Dec. 31, 2013 Stock Options [Member] 2003 Plan [Member]	May 31, 2003 Stock Options [Member] 2003 Plan [Member]	Dec. 31, 2013 Stock Options [Member] Minimum [Member]	Dec. 31, 2013 Stock Options [Member] Maximum [Member]	Nov. 30, 2013 Restricted Stock Units [Member]	Jun. 30, 2013 Restricted Stock Units [Member]	Dec. 31, 2013 Restricted Stock Units [Member]	Dec. 31, 2012 Restricted Stock Units [Member]	Dec. 31, 2013 Employee Stock [Member]	Dec. 31, 2012 Employee Stock [Member]	Dec. 31, 2011 Employee Stock [Member]	Dec. 31, 2013 Employee Stock [Member] Minimum [Member]	Dec. 31, 2013 Employee Stock [Member] Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation expense	$ 631,000	$ 836,000	$ 1,272,000	$ 574,000	$ 808,000	$ 1,234,000													$ 43,117	$ 9,137
Annualized estimated forfeiture rate	4.00%	4.00%	4.00%
Unissued stock options				254,791
Number of stock options plans for employees				2
Number of stock option plan related for non employee directors				2
Stock options expiration period															2 years	10 years
Amendment to increase number of shares, additional shares							300,000	50,000	70,000		600,000	450,000
Maximum number of shares under 2003 plan														700,000
Shares available for future stock options grants										701,986			701,986								500,000
Exercise price range for outstanding options															$ 2.00	$ 11.93
Weighted average remaining life of options outstanding	3 years 7 months 10 days
Exercisable in the money options	980,932	855,671	666,797	61,810
Options exercised	0	3,250	122,220
Unrecognized compensation cost related to non-vested options granted				640,968
Period during which cost is expected to be recognized	1 year 4 months 21 days
Total fair value of shares vested	617,667
Stock price				$ 3.01																				$ 1.80	$ 2.17
Restricted stock granted to employees																	17,050	20,250
Fair value of grant																	$ 3.27	$ 2.35
Expected period of stock vest																			2 years
Unrecognized compensation grants																			95,786
Weighted average remaining contractual life																			1 year 6 months
Percentage of fair market value				85.00%
Employee stock purchase plan option period	6 months
Number of shares remaining available under employee stock purchase plan																					38,295
Shares purchased under employee stock purchase plan																					16,827
Compensation charges recorded																					$ 13,200,000	$ 18,721,000	$ 38,417,000

XML

Concentration of Credit Risk and Significant Customers - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012 Customer	Dec. 31, 2011
Maximum [Member]
Concentration Risk [Line Items]
Terms of investments in financial instrument	90 days
One Customer [Member]
Concentration Risk [Line Items]
Customer wise net sales	$ 8.2	$ 7.3	$ 11.9
Customers accounted for accounts receivable	More than 10%
Number of major customer		1
Customers account receivable percentage	14.00%
One Customer [Member] | Sales [Member]
Concentration Risk [Line Items]
Customer wise net sales percentage	17.40%	12.50%	15.60%
Two Customer [Member]
Concentration Risk [Line Items]
Customer wise net sales		$ 6.5	$ 7.9
Customers accounted for accounts receivable		More than 10%
Number of major customer		2
Customers account receivable percentage		22.50%
Two Customer [Member] | Sales [Member]
Concentration Risk [Line Items]
Customer wise net sales percentage		11.20%	10.40%

XML

Debt, Capital Leases, Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Oct. 02, 2009	Mar. 30, 2006
Mortgage Loans on Real Estate [Line Items]
Mortgage note amount					$ 10,000,000
Mortgage note payable maturity date	Dec. 23, 2015
Loan modification agreement date	Sep. 09, 2010
Letters of credit outstanding	247,515	247,090		225,140
Amount of mortgage loan outstanding	7,600,000
Operating future minimum lease commitment	281,000
Lease rent expense	421,000	390,000	477,000
Liability related to disposal	225,140
Shanghai Manufacturing Operations [Member]
Mortgage Loans on Real Estate [Line Items]
Operating future minimum lease commitment	86,000
UNITED KINGDOM
Mortgage Loans on Real Estate [Line Items]
Operating future minimum lease commitment	54,000
Future minimum lease commitment	11,000
SINGAPORE
Mortgage Loans on Real Estate [Line Items]
Future minimum lease commitment	43,000
Real Estate [Member]
Mortgage Loans on Real Estate [Line Items]
Lease agreements for future minimum obligation	195,000
Automobiles [Member]
Mortgage Loans on Real Estate [Line Items]
Lease agreements for future minimum obligation	18,000
Machinery and Equipment [Member]
Mortgage Loans on Real Estate [Line Items]
Lease agreements for future minimum obligation	68,000
Mortgage Note Payable [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage note payable maturity date	Sep. 26, 2023
Mortgage note annual interest rate	4.43%
FHLB Basis points	2.40%
Pre Loan Modification Agreement [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage note annual interest rate	6.84%
Monthly installment payment	76,280
Post Loan Modification Agreement [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage note annual interest rate	5.50%
Monthly installment payment	69,000
Post Loan Modification Agreement [Member] | Mortgage Note Payable [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage note annual interest rate	4.43%
Monthly installment payment	$ 57,997

XML

Stock Option and Purchase Plans - Summary of Stock Option Activity (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Beginning Balance, Shares	1,353,141	1,299,358	1,277,264
Shares, Granted	222,060	217,695	180,855
Shares, Exercised	0	(3,250)	(122,220)
Shares, Forfeited/Cancelled	(166,509)	(160,662)	(36,541)
Ending Balance, Shares	1,408,692	1,353,141	1,299,358
Shares, Options exercisable at end of year	980,932	855,671	666,797
Weighted Fair Value, Beginning Balance	$ 6.20	$ 6.72	$ 6.56
Weighted-Average Exercise Price, Granted	$ 2.80	$ 2.54	$ 6.24
Weighted-Average Exercise Price, Exercised		$ 3.00	$ 4.26
Weighted-Average Exercise Price, Forfeited/Cancelled	$ 9.29	$ 5.48	$ 7.04
Weighted Fair Value, Ending Balance	$ 5.30	$ 6.20	$ 6.72
Weighted-Average Exercise Price, Exercisable at end of year	$ 6.01	$ 7.21	$ 7.57

XML

Income Taxes - Net Deferred Tax Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Federal Net Operating Loss Carryforwards	$ 3,051	$ 1,674
State Net Operating Loss Carryforwards	360	163
Foreign Net Operating Loss Carryforwards	860	459
Inventory Reserve	3,753	3,441
Deferred Compensation	1,693	1,789
Federal, Foreign and Other Tax Credits	2,989	2,480
Accruals and Other	1,732	1,360
Intangibles	416	467
Total Deferred Tax Assets	14,854	11,833
Valuation Allowance	(14,854)	(10,961)
Deferred Tax Assets		872
Depreciation and Amortization		(40)
Net Deferred Tax Assets		$ 832

XML

Accrued Expenses

12 Months Ended

Dec. 31, 2013

Other Liabilities Disclosure [Abstract]

Accrued Expenses

(2)     ACCRUED EXPENSES

Accrued expenses at December 31, 2013 and 2012 consisted of the following (in thousands):

	2013		2012
Accrued commissions	$	1,086	$	935
Accrued warranty		379		393
Accrued taxes		1,858		1,817
Accrued audit		419		388
Accrued legal		1,430		240
Accrued bonus		85		87
Payroll and payroll taxes		688		793
Accrued cost of sales		142		300
Accrued restructuring		—		111
Other		274		83
	$	6,361	$	5,147

Warranties

The Company provides standard warranty coverage for parts and labor for 12 months and special extended material-only coverage on certain other products. The Company estimates and records a reserve for anticipated warranty claims based on historical warranty claims as a percentage of revenue by product line. The reserve for warranty covers the estimated costs of material, labor and travel. Actual warranty claims incurred are charged against the reserve. Factors that affect the Company’s product warranty liability include the number of installed units, the anticipated cost of warranty repairs and historical and anticipated rates of warranty claims.

The following table reflects changes in the Company’s accrued warranty account during the fiscal years ended December 31, 2013 and 2012:

	2013			2012
	(In thousands)
Beginning balance	$	393		$	497
Plus: accruals related to new sales		397			538
Less: warranty claims incurred		(411	)		(642	)
Ending balance	$	379		$	393

Restructuring

Costs associated with restructuring activities are accounted for in accordance with ASC Topic 420, Exit or Disposal Cost Obligations, or ASC Topic 712, Compensation—Nonretirement Postemployment Benefits, as applicable. Pursuant to ASC Topic 712, liabilities for employee severance are recorded when payment of severance is considered probable and the amount is estimable. For restructuring costs other than employee severance accounted under ASC Topic 712, a liability is recognized in accordance with ASC Topic 420 only when incurred.

In April 2013, the Company eliminated 12 positions. Accordingly, the Company recorded a restructuring charge of $176,000 in the three months ended June 30, 2013. The decision to eliminate 12 positions was taken due to the continued slowdown in the solar industry. The Company eliminated 31 and 17 positions and recorded restructuring charges of $424,000 and $401,000 in the years ended December 31, 2012 and December 31, 2011.

The restructuring charges were primarily severance and benefits.

The following table reflects changes in the reserves for restructuring charges for the year ended December 31, 2013 (in thousands):

	2013
Beginning balance, December 31, 2012	$	111
Plus: charges to costs and expenses		176
Less: reduction of accrual		(71	)
Less: cash payments		(216	)
Ending balance, December 31, 2013	$	—

XML

Income Taxes - Schedule of Income before Income Tax, Domestic and Foreign (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Domestic									$ (7,776)	$ (9,254)	$ (2,366)
Foreign									(2,401)	(1,678)	596
Loss before provision (benefit) for income taxes	$ (2,801)	$ (4,076)	$ (107)	$ (3,193)	$ (4,808)	$ (2,245)	$ (2,047)	$ (1,832)	$ (10,177)	$ (10,932)	$ (1,770)

XML

Summary of Significant Accounting Policies - Schedule of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Regulatory Assets [Abstract]
Raw materials and manufactured components	$ 6,010	$ 4,772
Work-in-process	2,459	1,905
Finished goods	1,362	2,870
Total inventory	$ 9,831	$ 9,547

XML

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Accounting Policies [Line Items]
Bad debt expense	$ (280,000)	$ 1,345,000	$ (49,000)
Inventory provisions	1,868,000	5,261,000	2,294,000
Inventory reserve provisions	250,000	60,000	485,000
Depreciation expense	1,603,000	1,641,000	1,624,000
Impairment of long-lived assets	0	0	0
Deferred financing cost amortization period	10 years
Amortization on deferred financing costs	7,000	7,000	7,000
Amortization on intellectual property	23,000	54,000	169,000
Minimum cycle period of product	6 months
Revenues recognized using the percentage of completion method	$ 0	$ 1,731,686	$ 2,406,714
Equity Option [Member]
Schedule Of Accounting Policies [Line Items]
Antidilutive common stock	1,454,292	1,376,041	1,299,358

XML

Selected Quarterly Financial Information - Summary of Selected Quarterly Financial Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 10,993	$ 12,014	$ 14,244	$ 10,503	$ 13,082	$ 14,137	$ 14,598	$ 16,272	$ 47,754	$ 58,089	$ 76,128
Cost of goods sold	7,945	8,480	8,850	7,773	10,714	10,018	9,891	10,994	33,048	41,617	47,542
Gross profit	3,048	3,534	5,394	2,730	2,368	4,119	4,707	5,278	14,706	16,472	28,586
Selling, general and administrative	4,550	6,228	4,355	4,653	5,387	4,925	5,240	5,413	19,786	20,965	22,721
Research, development and engineering	1,177	1,276	1,017	1,134	1,329	1,333	1,306	1,482	4,604	5,450	7,056
Restructuring			176		248		121	55		424	401
Operating income (loss)	(2,679)	(3,970)	22	(3,057)	(4,596)	(2,139)	(1,960)	(1,672)	(9,684)	(10,367)	(1,592)
Interest expense, net	(78)	(90)	(96)	(101)	(99)	(104)	(98)	(98)
Foreign exchange gain (loss)	(46)	(33)	(38)	(76)	(169)	(3)	10	(62)	(193)	(224)	(139)
Other income, net	2	17	5	41	56	1	1		65	58	365
Loss before provision (benefit) for income taxes	(2,801)	(4,076)	(107)	(3,193)	(4,808)	(2,245)	(2,047)	(1,832)	(10,177)	(10,932)	(1,770)
Provision (benefit) for income taxes	208	998	154	(69)	(365)	153	102	175	1,291	65	952
Net loss	$ (3,009)	$ (5,074)	$ (261)	$ (3,124)	$ (4,443)	$ (2,398)	$ (2,149)	$ (2,007)	$ (11,468)	$ (10,997)	$ (2,722)
Loss per share:
Basic	$ (0.32)	$ (0.53)	$ (0.03)	$ (0.33)	$ (0.47)	$ (0.25)	$ (0.23)	$ (0.21)	$ (1.20)	$ (1.16)	$ (0.29)
Diluted	$ (0.32)	$ (0.53)	$ (0.03)	$ (0.33)	$ (0.47)	$ (0.25)	$ (0.23)	$ (0.21)	$ (1.20)	$ (1.16)	$ (0.29)
Weighted average number of shares outstanding:
Basic	9,548	9,545	9,532	9,531	9,516	9,516	9,503	9,502	9,539	9,509	9,434
Diluted	9,548	9,545	9,532	9,531	9,516	9,516	9,503	9,502	9,539	9,509	9,434

XML

Income Taxes - Provision (Benefit) for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Current Federal Tax Expense (Benefit)									$ 0
Current State and Local Tax Expense (Benefit)									2	2	28
Current Foreign Tax Expense (Benefit)									437	454	1,001
Current Income Tax Expense (Benefit), Total									439	456	1,029
Deferred Federal Income Tax Expense (Benefit)									0
Deferred State and Local Income Tax Expense (Benefit)									0
Deferred Foreign Income Tax Expense (Benefit)									852	(391)	(77)
Deferred Income Tax Expense Benefit									852	(391)	(77)
Federal Income Tax Expense (Benefit), Continuing Operations, Total									0
State and Local Income Tax Expense (Benefit), Continuing Operations, Total									2	2	28
Foreign Income Tax Expense (Benefit), Continuing Operations, Total									1,289	63	924
Net Provision	$ 208	$ 998	$ 154	$ (69)	$ (365)	$ 153	$ 102	$ 175	$ 1,291	$ 65	$ 952

XML

Summary of Significant Accounting Policies - Schedule Showing Estimated Useful Lives for Depreciation Purposes (Detail)	12 Months Ended
	Dec. 31, 2013
Leasehold Improvements [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	3 years
Minimum [Member] | Building and Improvements [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	8 years
Minimum [Member] | Machinery and Equipment [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	2 years
Minimum [Member] | Software [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	3 years
Minimum [Member] | Furniture and Fixtures [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	3 years
Maximum [Member] | Building and Improvements [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	25 years
Maximum [Member] | Machinery and Equipment [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	8 years
Maximum [Member] | Software [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	10 years
Maximum [Member] | Furniture and Fixtures [Member]
Schedule Of Accounting Policies [Line Items]
Property plant and equipment, useful life	8 years

XML

Summary of Significant Accounting Policies - Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Regulatory Assets [Abstract]
Deferred financing costs, net of amortization	$ 73	$ 23
Intellectual property, net of amortization		23
Deferred tax asset-non-current		143
Long term assets	553	292
Total	$ 626	$ 481

XML

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

(1)     SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

NATURE OF OPERATIONS

BTU International, Inc. and its wholly owned subsidiaries (the “Company”) are primarily engaged in the design, manufacture, sale, and service of thermal processing systems, which are used as capital equipment in various manufacturing processes, primarily in the electronics and alternative energy industries.

COMPREHENSIVE INCOME (LOSS)

The Company follows Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 220, Comprehensive Income (“ASC 220”) as amended by Accounting Standards Update (ASU) 2011-05, Presentation of Comprehensive Income. ASC 220 requires companies to report all changes in equity during a period, resulting from net income (loss) and transactions from non-owner sources, in a financial statement in the period in which they are recognized. On January 1, 2012, the date of adoption of ASU 2011-05, we had the option to report total comprehensive income, including components of net income and components of other comprehensive income, as a single continuous statement or in two separate but consecutive statements. We elected to present comprehensive income in two separate but consecutive statements as part of the consolidated financial statements. Other than a change in presentation, the implementation of this accounting pronouncement did not have a material impact on our consolidated financial statements.

PRINCIPLES OF CONSOLIDATION AND THE USE OF ESTIMATES

The accompanying consolidated financial statements include the accounts of the Company. All material inter-company balances and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. The primary estimates used in the consolidated financial statements include the percentage of completion revenue method, inventory valuation, allowance for doubtful accounts, valuation of deferred income taxes, stock-based compensation and warranty reserves.

CASH AND CASH EQUIVALENTS

The Company has classified certain highly liquid financial instruments, with original maturities of three months or less, as cash equivalents.

ACCOUNTS RECEIVABLE

Accounts receivable are stated at the amount management expects to collect from outstanding balances. An allowance for doubtful accounts is provided for those accounts receivable considered to be uncollectible based upon historical experience and management’s evaluation of outstanding accounts receivable at the end of the year. Uncollectible accounts are written off against the allowance when identified. Bad debt expense (recovery) was ($280,000), $1,345,000, and ($49,000) for 2013, 2012 and 2011, respectively.

INVENTORIES

Our inventories consist of material, labor and manufacturing overhead costs. We determine the cost of inventory based on a first-in, first-out method. We regularly review the quantity of inventories on hand and compare these quantities to the expected usage of each applicable product or product line. Our inventories are adjusted in value to the lower of cost or net realizable value and a new cost basis is established. Since the value of our inventories depends in part on our estimates of each product’s net realizable value, adjustments may be needed to reflect changes in valuation. Any adjustments we are required to make to lower the value of the inventories are recorded as a charge to cost of sales.

Inventories consist of the following (in thousands):

	Years Ended December 31,
	2013		2012
Raw materials and manufactured components	$	6,010	$	4,772
Work-in-process		2,459		1,905
Finished goods		1,362		2,870
Total inventory	$	9,831	$	9,547

The Company recorded inventory write-downs of $1,868,000, $5,261,000, and $2,294,000, for the years ended 2013, 2012 and 2011, respectively. The write-downs recorded are net of recoveries of sold inventory that had previously been written-down in the amounts of approximately $250,000, $60,000, and $485,000 for the years ended 2013, 2012 and 2011, respectively.

PROPERTY, PLANT AND EQUIPMENT

The Company provides for depreciation using the straight-line method over the assets’ useful lives. Leasehold improvements are amortized on a straight-line basis over the lesser of the estimated useful life of the asset or the lease term. The estimated useful lives for depreciation purposes are as follows:

Buildings and improvements	8-25 years
Machinery and equipment	2-8 years
Software	3-10 years
Furniture and fixtures	3-8 years
Leasehold improvements	3 years

Depreciation expense was approximately $1,603,000, $1,641,000, and $1,624,000 for the years ended December 31, 2013, 2012, and 2011, respectively.

Maintenance and repairs are charged to operations as incurred. When equipment and improvements are sold or otherwise disposed of, the asset cost and accumulated depreciation are removed from the accounts, and the resulting gain or loss, if any, is included in the results of operations.

The Company evaluates long-lived assets such as intangible assets and property, plant and equipment under FASB ASC 360-10-35-15, Impairment or Disposal of Long-Lived Assets. This statement requires that long-lived assets and certain identifiable intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset or asset group to future undiscounted net cash flows expected to be generated by the asset or asset group. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. No impairment of long-lived assets were identified during the years ended December 31, 2013, 2012 and 2011.

OTHER ASSETS

Other assets consist of the following (in thousands):

	2013		2012
Deferred financing costs, net of amortization	$	73	$	23
Intellectual property, net of amortization		—		23
Deferred tax asset—non-current		—		143
Long term assets		553		292
Total	$	626	$	481

Deferred financing costs, capitalized in 2013, are being amortized over ten years, the term of the mortgage note. Amortization on deferred financing costs was approximately $7,000, $7,000 and $7,000 in 2013, 2012 and 2011, respectively. Amortization on intellectual property was approximately $23,000, $54,000, and $169,000 in 2013, 2012 and 2011, respectively.

INCOME TAXES

Deferred tax assets and liabilities are recognized for the expected future tax consequences of events that have been included in the consolidated financial statements or tax returns. The amounts of deferred tax assets or liabilities are based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided if, based on the weight of the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

We assess tax positions taken on tax returns, including recognition of potential interest and penalties, in accordance with the recognition thresholds and measurement attributes outlined in ASC 740. Interest and penalties recognized, if any, would be classified as a component of income tax expense.

TRANSLATION OF FOREIGN CURRENCIES

Assets and liabilities of the Company’s foreign operations are translated from their functional currency into U.S. dollars at year end exchange rates. Revenue and expense items are translated at weighted average rates of exchange prevailing during the year. Gains and losses arising from translation are accumulated as a separate component of stockholders’ equity, as the functional currency of the subsidiaries is their local currency, and the reporting currency of the Company is the U.S. dollar. Exchange gains and losses arising from transactions denominated in foreign currencies are included in income as incurred.

PATENTS

The Company has patents in the U.S. and certain foreign countries for some of its products and processes. No value has been assigned to these patents in the accompanying consolidated financial statements.

REVENUE RECOGNITION

The Company recognizes revenue in accordance with FASB ASC Topic 605, Revenue Recognition (“ASC 605”). Under these guidelines, revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services rendered, the price is fixed or determinable and payment is reasonably assured. Under these requirements, when the terms of sale include customer acceptance provisions, and compliance with those provisions has not been demonstrated, revenues are recognized upon acceptance.

Applying the requirements of ASC 605 to future sales arrangements used in the Company’s equipment sales may result in the deferral of the revenue for some equipment sales. Products shipped to customers that do not meet the threshold requirements for revenue recognition as outlined above remain in the Company’s inventory on the Consolidated Balance Sheet until revenue is recognized. Any cash collected from customers for products for which revenue has been deferred is recorded as Deferred Revenue on the Consolidated Balance Sheet.

The Company also has certain sales transactions for products, which are not completed within the normal operating cycle of the business. It is the Company’s policy to account for these transactions using the percentage of completion method for revenue recognition purposes when all of the following criteria exist: (1) The Company has received the customer’s purchase order or entered into a legally binding contract, (2) The customer is credit worthy and collection is probable or customer prepayments are required at product completion milestones or specific dates, (3) The sales value of the product to be delivered is significant in amount when compared to the Company’s other products, and (4) Product costs can be reasonably estimated, there is no major technological uncertainty and the total engineering, material procurement, product assembly and test cycle time extend over a period of six months or longer.

Under the percentage of completion method, revenues and gross margins to date are recognized based upon the ratio of costs incurred to date compared to the latest estimate of total costs to complete the product as a percentage of the total contract revenue for the product. Revisions in costs and gross margin percentage estimates are reflected in the period in which the facts causing the revision become known. Provisions for total estimated losses on uncompleted contracts, if any, are made in the period in which such losses are determined. For the years ended December 31, 2013, 2012 and 2011, $0, $1,731,686, and $2,406,714, respectively, were recognized as revenue using the percentage of completion method.

The Company accounts for shipping and handling costs billed to customers in accordance with FASB ASC 605-45, Shipping and Handling Fees and Costs. Amounts billed to customers for shipping and handling costs are recorded as revenues with the associated costs reported as cost of goods sold.

RESEARCH, DEVELOPMENT AND ENGINEERING

Research, development and engineering costs are charged to expense as incurred.

EARNINGS PER SHARE INFORMATION

Basic earnings per share (EPS) is computed by dividing net income (loss) available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted EPS is computed using the weighted-average number of common and potentially dilutive securities outstanding during the period, using the treasury stock method. Potentially dilutive securities include outstanding stock options and unvested restricted stock units (RSUs). Due to their antidilutive effect, approximately 1,454,292, 1,376,041, and 1,299,358 options to purchase common stock were excluded from the calculation of diluted loss per share for the years ended December 31, 2013, 2012 and 2011, respectively. However, these potentially dilutive securities could become dilutive in future periods.

The weighted average number of common shares used to compute basic and diluted earnings per share consists of the following classification:

	Years Ended December 31,
	2013		2012		2011
	(In thousands)
Basic shares		9,539		9,509		9,434
Effect of dilutive options		—		—		—
Diluted shares		9,539		9,509		9,434

RECENT ACCOUNTING PRONOUNCEMENTS

In February 2013, the FASB issued ASU No. 2013-02, Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income, that requires entities to disclose items reclassified out of accumulated other Comprehensive Income (AOCI) and into net income in their entirety, the effect of the reclassification on each affected net income line item and for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required U.S. GAAP disclosures. This consolidated standard is effective for annual periods beginning after December 15, 2012 and interim periods within those years. The application of this standard did not have material impact on the Company’s consolidated financial statements.

SUBSEQUENT EVENTS

For the fiscal year ended December 31, 2013, the Company has evaluated subsequent events for potential recognition and disclosure in the financial statements through the date these financial statements were filed with the Securities and Exchange Commission.

XML

Summary of Significant Accounting Policies - Weighted Average Number of Common Shares (Detail) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Regulatory Assets [Abstract]
Basic shares	9,548	9,545	9,532	9,531	9,516	9,516	9,503	9,502	9,539	9,509	9,434
Effect of dilutive options
Diluted shares	9,548	9,545	9,532	9,531	9,516	9,516	9,503	9,502	9,539	9,509	9,434

XML

Foreign Operations - Schedule of Revenues from External Customers and Long-Lived Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Amount of the Company's revenues by geographic region	$ 10,993	$ 12,014	$ 14,244	$ 10,503	$ 13,082	$ 14,137	$ 14,598	$ 16,272	$ 47,754	$ 58,089	$ 76,128
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Amount of the Company's revenues by geographic region									8,541	8,756	13,199
Percentages of the Company's revenues by geographic region									18.00%	15.00%	17.00%
Europe and Near East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Amount of the Company's revenues by geographic region									6,647	9,242	5,759
Percentages of the Company's revenues by geographic region									14.00%	16.00%	8.00%
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Amount of the Company's revenues by geographic region									29,138	38,606	53,052
Percentages of the Company's revenues by geographic region									61.00%	66.00%	70.00%
Other Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Amount of the Company's revenues by geographic region									$ 3,428	$ 1,485	$ 4,118
Percentages of the Company's revenues by geographic region									7.00%	3.00%	5.00%

XML

Stock Option and Purchase Plans - Summary of Options Outstanding and for Options Exercisable (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options Outstanding	1,408,692
Weighted average remaining life of options outstanding	3 years 7 months 10 days
Weighted average exercise price of options outstanding	$ 5.30
Number of Options Exercisable	980,932
Weighted average exercise price of Options Exercisable	$ 6.01
Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 2.00
Maximum range of price	$ 3.00
Number of Options Outstanding	230,293
Weighted average remaining life of options outstanding	5 years 10 months 10 days
Weighted average exercise price of options outstanding	$ 2.26
Number of Options Exercisable	61,810
Weighted average exercise price of Options Exercisable	$ 2.12
Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 3.01
Maximum range of price	$ 3.34
Number of Options Outstanding	202,966
Weighted average remaining life of options outstanding	5 years 8 months 19 days
Weighted average exercise price of options outstanding	$ 3.18
Number of Options Exercisable	60,239
Weighted average exercise price of Options Exercisable	$ 3.10
Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 3.35
Maximum range of price	$ 5.01
Number of Options Outstanding	366,611
Weighted average remaining life of options outstanding	2 years 7 months 28 days
Weighted average exercise price of options outstanding	$ 4.22
Number of Options Exercisable	335,011
Weighted average exercise price of Options Exercisable	$ 4.28
Range Four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 5.02
Maximum range of price	$ 6.68
Number of Options Outstanding	258,492
Weighted average remaining life of options outstanding	2 years 11 months 16 days
Weighted average exercise price of options outstanding	$ 5.62
Number of Options Exercisable	230,992
Weighted average exercise price of Options Exercisable	$ 5.65
Range Five [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 6.69
Maximum range of price	$ 8.35
Number of Options Outstanding	99,420
Weighted average remaining life of options outstanding	3 years 8 months 16 days
Weighted average exercise price of options outstanding	$ 7.01
Number of Options Exercisable	76,020
Weighted average exercise price of Options Exercisable	$ 7.02
Range Six [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 8.36
Maximum range of price	$ 10.02
Number of Options Outstanding	71,300
Weighted average remaining life of options outstanding	4 years 3 months 4 days
Weighted average exercise price of options outstanding	$ 9.06
Number of Options Exercisable	37,250
Weighted average exercise price of Options Exercisable	$ 9.08
Range Seven [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 10.03
Maximum range of price	$ 11.69
Number of Options Outstanding	97,010
Weighted average remaining life of options outstanding	1 year 4 months 28 days
Weighted average exercise price of options outstanding	$ 10.08
Number of Options Exercisable	97,010
Weighted average exercise price of Options Exercisable	$ 10.08
Range Eight [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Minimum range of price	$ 11.70
Maximum range of price	$ 11.93
Number of Options Outstanding	82,600
Weighted average remaining life of options outstanding	4 months 17 days
Weighted average exercise price of options outstanding	$ 11.93
Number of Options Exercisable	82,600
Weighted average exercise price of Options Exercisable	$ 11.93

XML

Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 13,991	$ 20,218
Accounts receivable, less allowance of $1,280 and $1,583 at December 31, 2013 and 2012	11,370	9,623
Inventories	9,831	9,547
Other current assets	1,126	4,131
Total current assets	36,318	43,519
Property, plant and equipment, at cost
Land	210	210
Buildings and improvements	11,268	11,200
Machinery and equipment	16,231	16,168
Furniture and fixtures	1,082	1,062
Property, plant and equipment gross	28,791	28,640
Less accumulated depreciation	(25,405)	(23,971)
Net property, plant and equipment	3,386	4,669
Other assets, net of accumulated amortization of $2,582 in 2013 and $2,552 in 2012	626	481
Total assets	40,330	48,669
Current liabilities
Current portion of long-term debt	367	400
Trade accounts payable	5,408	5,185
Deferred revenue	2,052	893
Accrued expenses	6,361	5,147
Total current liabilities	14,188	11,625
Long-term debt, less current portion	7,219	7,564
Other long-term liabilities	14
Total liabilities	21,421	19,189
Commitments and contingencies
Stockholders' equity
Preferred stock, $1.00 par value-5,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.01 par value-25,000,000 shares authorized; 10,924,856 shares issued and 9,556,889 shares outstanding at December 31, 2013 and 10,898,939 shares issued and 9,530,972 shares outstanding at December 31, 2012	109	109
Additional paid-in capital	52,204	51,545
Accumulated deficit	(30,853)	(19,385)
Less: treasury stock at cost, 1,367,967 shares at December 31, 2013 and December 31, 2012	(4,990)	(4,990)
Accumulated other comprehensive income	2,439	2,201
Total stockholders' equity	18,909	29,480
Total liabilities and stockholders' equity	$ 40,330	$ 48,669

XML

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
United States federal statutory income tax rate									34.00%
Increase/Decrease of deferred tax valuation allowance									$ 3,893,000	$ 2,982,000
Tax benefit	208,000	998,000	154,000	(69,000)	(365,000)	153,000	102,000	175,000	1,291,000	65,000	952,000
Tax benefits recorded in additional paid in capital									253,265
Excess tax deductions from share based payments									3,354,070
Undistributed earnings from Foreign subsidiaries					2,700,000					2,700,000
Related provision for U.S. federal and state income taxes										2,700,000
Period of uncertain tax position									12 months
Interest or penalties accrued	0								0
Federal Tax Authority [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	12,699,000								12,699,000
State Tax Authority [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	4,717,000								4,717,000
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Foreign tax credit carryforwards	$ 2,941,000								$ 2,941,000

XML

Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2010	$ 39,840	$ 107	$ 48,764	$ (5,666)	$ (4,990)	$ 1,625
Beginning Balance, shares at Dec. 31, 2010		10,718,000			1,368,000
Net loss	(2,722)			(2,722)
Exercise of stock options	521	2	519
Exercise of stock options, shares	122,220	123,000
Issuance of common stock	91		91
Issuance of common stock, shares		27,000
Translation adjustment	450					450
Stock-based compensation	1,272		1,272
Ending Balance at Dec. 31, 2011	39,452	109	50,646	(8,388)	(4,990)	2,075
Ending Balance, shares at Dec. 31, 2011		10,868,000			1,368,000
Net loss	(10,997)			(10,997)
Exercise of stock options	10		10
Exercise of stock options, shares	3,250	3,000
Issuance of common stock	53		53
Issuance of common stock, shares		28,000
Translation adjustment	126					126
Stock-based compensation	836		836
Ending Balance at Dec. 31, 2012	29,480	109	51,545	(19,385)	(4,990)	2,201
Ending Balance, shares at Dec. 31, 2012		10,899,000			1,368,000
Net loss	(11,468)			(11,468)
Exercise of stock options, shares	0
Issuance of common stock	28		28
Issuance of common stock, shares		26,000
Translation adjustment	238					238
Stock-based compensation	631		631
Ending Balance at Dec. 31, 2013	$ 18,909	$ 109	$ 52,204	$ (30,853)	$ (4,990)	$ 2,439
Ending Balance, shares at Dec. 31, 2013		10,925,000			1,368,000

XML

Accrued Expenses - Schedule of Changes in Company's Accrued Warranty Account (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Other Liabilities Disclosure [Abstract]
Beginning balance	$ 393	$ 497
Plus: accruals related to new sales	397	538
Less: warranty claims incurred	(411)	(642)
Ending balance	$ 379	$ 393

XML

Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2013

Other Liabilities Disclosure [Abstract]

Schedule of Accrued Expenses

Accrued expenses at December 31, 2013 and 2012 consisted of the following (in thousands):

	2013		2012
Accrued commissions	$	1,086	$	935
Accrued warranty		379		393
Accrued taxes		1,858		1,817
Accrued audit		419		388
Accrued legal		1,430		240
Accrued bonus		85		87
Payroll and payroll taxes		688		793
Accrued cost of sales		142		300
Accrued restructuring		—		111
Other		274		83
	$	6,361	$	5,147

Schedule of Changes in Company's Accrued Warranty Account

The following table reflects changes in the Company’s accrued warranty account during the fiscal years ended December 31, 2013 and 2012:

	2013			2012
	(In thousands)
Beginning balance	$	393		$	497
Plus: accruals related to new sales		397			538
Less: warranty claims incurred		(411	)		(642	)
Ending balance	$	379		$	393

Schedule of Changes in Reserves for Restructuring Charges

The following table reflects changes in the reserves for restructuring charges for the year ended December 31, 2013 (in thousands):

	2013
Beginning balance, December 31, 2012	$	111
Plus: charges to costs and expenses		176
Less: reduction of accrual		(71	)
Less: cash payments		(216	)
Ending balance, December 31, 2013	$	—

XML

Accrued Expenses - Schedule of Changes in Reserves for Restructuring Charges (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Other Liabilities Disclosure [Abstract]
Beginning balance, December 31, 2012	$ 111
Plus: charges to costs and expenses	176
Less: reduction of accrual	(71)
Less: cash payments	(216)
Ending balance, December 31, 2013

XML

Foreign Operations (Tables)

12 Months Ended

Dec. 31, 2013

Text Block [Abstract]

Schedule of Revenues from External Customers and Long-Lived Assets

The following table shows the amounts (in thousands) and percentages of the Company’s revenues by geographic region, for the last three years:

	2013				2012				2011
United States	$	8,541	18	%	$	8,756	15	%	$	13,199	17	%
Europe and Near East		6,647	14	%		9,242	16	%		5,759	8	%
Asia Pacific		29,138	61	%		38,606	66	%		53,052	70	%
Other Americas		3,428	7	%		1,485	3	%		4,118	5	%
Total Revenue	$	47,754			$	58,089			$	76,128

Schedule of Tangible Long-Lived Assets by Geographic Location

The following table shows the amounts (in thousands) of the Company’s tangible long-lived assets by geographic region, at December 31, 2013 and 2012:

	December 31, 2013		December 31, 2012
United States	$	2,889	$	3,936
Asia Pacific		497		733
	$	3,386	$	4,669

XML

Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net loss	$ (11,468)	$ (10,997)	$ (2,722)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	1,633	1,702	1,800
Provision (recovery) for bad debts	(266)	1,383	(49)
Provision for inventory	1,868	5,261	2,294
Stock-based compensation	631	836	1,272
Deferred taxes	852	(391)	(77)
Gain on sale of property, plant and equipment	(51)
Loss on disposal of fixed assets			6
Net change in operating assets and liabilities:
Accounts receivable	(1,369)	1,452	5,709
Inventories	(2,042)	2,191	(592)
Other current assets	2,354	(1,785)	(843)
Other assets	(305)	(203)	200
Accounts payable	108	1,632	(6,814)
Deferred revenue	1,158	398	(2,911)
Other long-term liabilities	14
Accrued expenses	1,118	210	(780)
Net cash provided by (used in) operating activities	(5,765)	1,689	(3,507)
Cash flows provided by (used in) investing activities:
Proceeds from sale of property, plant and equipment	57
Purchases of property, plant and equipment	(302)	(221)	(711)
Net cash used in investing activities	(245)	(221)	(711)
Cash flows from financing activities:
Principal payments under loan and capital lease agreements	(378)	(371)	(353)
Issuance of common stock	28	53	91
Proceeds from the exercise of stock options		10	521
Net cash provided by (used in) financing activities	(350)	(308)	259
Effects of exchange rates on cash	133	110	154
Net increase (decrease) in cash and cash equivalents	(6,227)	1,270	(3,805)
Cash and cash equivalents, beginning of period	20,218	18,948	22,753
Cash and cash equivalents, end of period	13,991	20,218	18,948
Cash paid (received) during the periods for:
Interest paid	365	397	435
Income taxes paid ( received)	$ 537	$ (35)	$ 388

XML

Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Accounts receivable, allowance	$ 1,280	$ 1,583
Other assets accumulated amortization	$ 2,582	$ 2,552
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	10,924,856	10,898,939
Common stock, shares outstanding	9,556,889	9,530,972
Treasury stock, shares	1,367,967	1,367,967

XML

Segment Reporting

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Segment Reporting

(10)     SEGMENT REPORTING

Segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision-maker in deciding how to allocate resources and in assessing performance. The Company operates as a single business segment called Thermal Processing Capital Equipment.

The Thermal Processing Capital Equipment segment consists of the designing, manufacturing, selling and servicing of thermal processing equipment and related process controls for use in the electronics, alternative energy, automotive and other industries. This business segment includes the supply of solder reflow systems used for surface mount applications in printed circuit board assembly. Thermal processing equipment is used in: low temperature curing/encapsulation; hybrid integrated circuit manufacturing; integrated circuit packaging and sealing; and processing multi-chip modules. In addition, the thermal process equipment is used for solar cell processing, sintering nuclear fuel for commercial power generation, as well as brazing and the sintering of ceramics and powdered metals, and the deposition of precise thin film coatings. The business segment’s customers are multinational original equipment manufacturers and contract manufacturing companies.

XML

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 27, 2014	Jun. 28, 2013
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Entity Registrant Name	BTU INTERNATIONAL INC
Entity Central Index Key	0000840883
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		9,556,889
Entity Public Float			$ 18,719,827

XML

Selected Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Information (Unaudited)

11)     SELECTED QUARTERLY FINANCIAL INFORMATION (Unaudited)

The following tables set forth selected quarterly financial information for the fiscal years ended December 31, 2013 and 2012. The operating results for any given quarter are not necessarily indicative of results for any future period.

	Quarters Ended
	Apr. 01, 2012			July 01, 2012			Sep. 30, 2012			Dec. 31, 2012			March 31, 2013			June 30, 2013			Sep. 29, 2013			Dec. 31, 2013
	(in thousands, except per share data)
Net sales	$	16,272		$	14,598		$	14,137		$	13,082		$	10,503		$	14,244		$	12,014		$	10,993
Cost of goods sold		10,994			9,891			10,018			10,714			7,773			8,850			8,480			7,945
Gross profit		5,278			4,707			4,119			2,368			2,730			5,394			3,534			3,048
Selling, general and administrative		5,413			5,240			4,925			5,387			4,653			4,355			6,228			4,550
Research, development and engineering		1,482			1,306			1,333			1,329			1,134			1,017			1,276			1,177
Restructuring		55			121			—			248			—			—			—			—
Operating income (loss)		(1,672	)		(1,960	)		(2,139	)		(4,596	)		(3,057	)		22			(3,970	)		(2,679	)
Interest expense, net		(98	)		(98	)		(104	)		(99	)		(101	)		(96	)		(90	)		(78	)
Foreign exchange gain (loss)		(62	)		10			(3	)		(169	)		(76	)		(38	)		(33	)		(46	)
Other income, net		—			1			1			56			41			5			17			2
Loss before provision
(benefit) for income taxes		(1,832	)		(2,047	)		(2,245	)		(4,808	)		(3,193	)		(107	)		(4,076	)		(2,801	)
Provision (benefit) for income taxes		175			102			153			(365	)		(69	)		154			998			208
Net loss	$	(2,007	)	$	(2,149	)	$	(2,398	)	$	(4,443	)	$	(3,124	)	$	(261	)	$	(5,074	)	$	(3,009	)
Loss per share:
Basic	$	(0.21	)	$	(0.23	)	$	(0.25	)	$	(0.47	)	$	(0.33	)	$	(0.03	)	$	(0.53	)	$	(0.32	)
Diluted	$	(0.21	)	$	(0.23	)	$	(0.25	)	$	(0.47	)	$	(0.33	)	$	(0.03	)	$	(0.53	)	$	(0.32	)
Weighted average number of shares outstanding:
Basic		9,502			9,503			9,516			9,516			9,531			9,532			9,545			9,548
Diluted		9,502			9,503			9,516			9,516			9,531			9,532			9,545			9,548
	Quarters Ended
	Apr. 01,			July 01,			Sep. 30,			Dec. 31,			March 31,			June 30,			Sep. 29,			Dec. 31,
	2012			2012			2012			2012			2013			2013			2013			2013
PERCENTAGE OF NET SALES:
Net sales		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%
Cost of goods sold		67.6	%		67.8	%		70.9	%		81.9	%		74.0	%		62.1	%		70.6	%		72.3	%
Gross profit		32.4	%		32.2	%		29.1	%		18.1	%		26.0	%		37.9	%		29.4	%		27.7	%
Selling, general and administrative		33.3	%		35.9	%		34.8	%		41.2	%		44.3	%		30.6	%		51.8	%		41.4	%
Research, development and engineering		9.1	%		8.9	%		9.4	%		10.2	%		10.8	%		7.1	%		10.6	%		10.7	%
Restructuring		0.3	%		0.8	%		0.0	%		1.9	%		0.0	%		0.0	%		0.0	%		0.0	%
Operating income (loss)		(10.3	)%		(13.4	)%		(15.1	)%		(35.1	)%		(29.1	)%		0.2	%		(33.0	)%		(24.4	)%
Interest expense, net		(0.6	)%		(0.7	)%		(0.7	)%		(0.8	)%		(1.0	)%		(0.7	)%		(0.7	)%		(0.7	)%
Foreign exchange gain (loss)		(0.4	)%		0.1	%		(0.0	)%		(1.3	)%		(0.7	)%		(0.3	)%		(0.3	)%		(0.4	)%
Other income, net		0.0	%		0.0	%		0.0	%		0.4	%		0.4	%		0.0	%		0.1	%		0.0	%
Loss before provision (benefit) for income taxes		(11.3	)%		(14.0	)%		(15.9	)%		(36.8	)%		(30.4	)%		(0.8	)%		(33.9	)%		(25.5	)%
Provision (benefit) for income taxes		1.1	%		0.7	%		1.1	%		(2.8	)%		(0.7	)%		1.1	%		8.3	%		1.9	%
Net loss		(12.3	)%		(14.7	)%		(17.0	)%		(34.0	)%		(29.7	)%		(1.8	)%		(42.2	)%		(27.4	)%

XML

Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Net sales	$ 47,754	$ 58,089	$ 76,128
Cost of goods sold	33,048	41,617	47,542
Gross profit	14,706	16,472	28,586
Selling, general and administrative	19,786	20,965	22,721
Research, development and engineering	4,604	5,450	7,056
Restructuring		424	401
Operating loss	(9,684)	(10,367)	(1,592)
Interest income	53	63	77
Interest expense	(418)	(462)	(481)
Foreign exchange loss	(193)	(224)	(139)
Other income, net	65	58	365
Loss before provision (benefit) for income taxes	(10,177)	(10,932)	(1,770)
Provision for income taxes	1,291	65	952
Net loss	$ (11,468)	$ (10,997)	$ (2,722)
Loss per share:
Basic	$ (1.20)	$ (1.16)	$ (0.29)
Diluted	$ (1.20)	$ (1.16)	$ (0.29)
Weighted average number of shares outstanding:
Basic	9,539	9,509	9,434
Diluted	9,539	9,509	9,434

XML

Concentration of Credit Risk and Significant Customers

12 Months Ended

Dec. 31, 2013

Risks And Uncertainties [Abstract]

Concentration of Credit Risk and Significant Customers

(5)     CONCENTRATION OF CREDIT RISK AND SIGNIFICANT CUSTOMERS

The Company maintains the majority of its cash and cash equivalent balances with a small number of financial institutions who invest the funds in highly liquid financial instruments with terms not to exceed 90 days.

The Company has international subsidiaries in China, the United Kingdom, Singapore and Malaysia. These subsidiaries transact business in their functional or local currency. Therefore, the Company is exposed to foreign currency exchange risks and fluctuations in foreign currencies, along with economic and political instability in the foreign countries in which it operates, all of which could adversely impact its results of operations and financial condition. The Company’s revenues are primarily derived from customers in the electronics and alternative energy manufacturing industries who are not required to provide collateral for amounts owed to the Company. The Company’s customers are dispersed over a wide geographic area and are subject to periodic review under the Company’s credit policies. The Company does not believe that it is subject to any unusual credit risks, other than the normal level of risk due to operating its business.

Concentration of credit risk with respect to accounts receivable is limited to certain customers to whom the Company makes substantial sales. To reduce its credit risk, the Company routinely assesses the financial strength of its customers. The Company maintains an allowance for potential credit losses, but historically has not experienced any losses in excess of the loss allowance related to individual customers or groups of customers in any particular industry or geographic area.

One customer accounted for $8.2 million or 17.4% of total net sales in 2013. One customer accounted for $7.3 million or 12.5% of total net sales and another customer accounted for $6.5 million or 11.2% of total net sales in 2012. One customer accounted for $11.9 million or 15.6% of total net sales and another accounted for $7.9 million or 10.4% of total net sales in 2011. As of December 31, 2013, one customer accounted for more than 10% of accounts receivable comprising 14.0% of the total. As of December 31, 2012, two customers accounted for more than 10% of accounts receivable comprising 22.5% of the total.

XML

Foreign Operations

12 Months Ended

Dec. 31, 2013

Text Block [Abstract]

Foreign Operations

(4) FOREIGN OPERATIONS

The following table shows the amounts (in thousands) and percentages of the Company’s revenues by geographic region, for the last three years:

	2013				2012				2011
United States	$	8,541	18	%	$	8,756	15	%	$	13,199	17	%
Europe and Near East		6,647	14	%		9,242	16	%		5,759	8	%
Asia Pacific		29,138	61	%		38,606	66	%		53,052	70	%
Other Americas		3,428	7	%		1,485	3	%		4,118	5	%
Total Revenue	$	47,754			$	58,089			$	76,128

The following table shows the amounts (in thousands) of the Company’s tangible long-lived assets by geographic region, at December 31, 2013 and 2012:

	December 31, 2013		December 31, 2012
United States	$	2,889	$	3,936
Asia Pacific		497		733
	$	3,386	$	4,669

XML

Debt, Capital Leases, Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt consisted of:

	December 31, 2013		December 31, 2012
	($ in thousands)
Mortgage note payable, interest rate of 4.43% and 5.50% at December 31, 2013 and December 31, 2012, respectively	$	7,586	$	7,964
Less—current portion of long-term debt		367		400
Long-Term debt, less current portion	$	7,219	$	7,564

Minimum Principal Repayments of Long Term Debt and Operating Lease

Under the terms of the debt, the minimum principal repayments of long-term debt and operating lease obligations by year are as follows (in thousands):

			Operating
	Mortgage		Leases		Total
2014		368		196		564
2015		384		61		445
2016		401		24		425
2017		419		—		419
2018 & Thereafter		6,014		—		6,014
	$	7,586	$	281	$	7,867

XML

Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2013

Condensed Financial Information Of Parent Company Only Disclosure [Abstract]

Schedule II Valuation and Qualifying Accounts

Schedule II

BTU INTERNATIONAL, INC.

VALUATION AND QUALIFYING ACCOUNTS

(in thousands)

For the Year Ended December 31, 2013

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses			Charged to Other Accounts		Deductions-(A)			Balance at End of Period
Allowance for doubtful accounts	$	1,583	$	(266	)	$	—	$	(37	)	$	1,280

For the Year Ended December 31, 2012

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts		Deductions-(A)			Balance at End of Period
Allowance for doubtful accounts	$	246	$	1,383	$	—	$	(46	)	$	1,583

For the Year Ended December 31, 2011

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses			Charged to Other Accounts		Deductions-(A)			Balance at End of Period
Allowance for doubtful accounts	$	327	$	(58	)	$	—	$	(23	)	$	246

A) Amounts indicated as deductions are for amounts charged against these reserves in the ordinary course of business or the reduction of required reserves based on management’s evaluation of the accounts considered to be uncollectable.

XML

Stock Option and Purchase Plans

12 Months Ended

Dec. 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Option and Purchase Plans

(8)     STOCK OPTION AND PURCHASE PLANS

Stock Options

The Company accounts for share-based compensation in accordance with the provisions of SFAS No. 123R, Share-Based Payment (now codified as FASB ASC Topic 718, Compensation—Stock Compensation (“ASC 718”)). This statement establishes standards for accounting for transactions in which an entity exchanges its equity instruments for goods or services. The Company’s stock option compensation expense was approximately $574,000, $808,000 and $1,234,000 for the years ended December 31, 2013, 2012 and 2011 respectively. These amounts do not include expense related to restricted stock awards or the employee stock purchase plan.

The fair value of each option is estimated on the date of grant using the Black-Scholes option-pricing model. This model incorporates certain assumptions for inputs including a risk-free market interest rate, expected dividend yield of the underlying common stock, expected option life and expected volatility in the market value of the underlying common stock. The Company is also required to estimate forfeitures at the time of grant and revise those estimates in subsequent periods if actual forfeitures differ from those estimates. Historical data is used to estimate pre-vesting forfeitures and record stock-based compensation expense only for those awards that are expected to vest. Accordingly, awards ultimately expected to vest were reduced for annualized estimated forfeitures of 4% for each of the years ended December 31, 2013, 2012 and 2011. We used the following assumptions for options issued during the years ended December 31, 2013, 2012 and 2011, respectively:

Calculation of Fair Values—Assumptions Used:	Dec. 31, 2013			Dec. 31, 2012			Dec. 31, 2011
Expected Volatility		65.6	%		66.6	%		63.7	%
Expected Life		4.19			4.15			4.64
Risk-Free Interest Rate		0.92	%		0.57	%		1.23	%
Expected Dividend Yield		0			0			0

Expected volatilities are based on the weighted average historical volatility of the Company’s common stock for the expected life of the option. The Company has significant historical data to help evaluate the expected lives of options in developing its assumption. The risk-free interest rate is based upon quoted market yields for United States Treasury debt securities with a term approximating the expected life of the options. The expected dividend yield is based upon the Company’s history of having never issued a dividend and management’s current expectation of future action surrounding dividends.

The Company has two stock option plans for employees, the 1993 Equity Incentive Plan (“1993 Plan”), which expired in 2003 with 254,791 unissued options, and the 2003 Equity Incentive Plan (“2003 Plan”). These plans allow for the award of stock and stock options to employees, directors and consultants. Under the terms of the plans, other stock awards can also be granted at the discretion of the Company’s board of directors. The Company also has two stock option plans for non-employee directors, the 1989 Stock Plan for Directors (“1989 Plan”), which expired in 2008 and the 1998 Stock Option Plan for Non-Employee Directors (“1998 Plan”). Under each plan, the exercise price of the options is not less than the fair market value at the date of the grant. Options expire from a minimum of two years to a maximum of ten years from the date of the grant. All new grants, for both employees and directors, are now issued from the same plan, the 2003 Plan.

In May 2003, the shareholders approved the 2003 Plan, which allows for up to 700,000 shares to be awarded (plus the addition of up to 300,000 options that could be forfeited under the expired 1993 Plan). Also in May 2003, the shareholders approved an amendment to add 70,000 shares to the 1998 Plan.

In May 2008, the shareholders approved an amendment to add 450,000 shares to the 2003 Plan. Also in May 2008, the shareholders approved an amendment to add 50,000 shares to the 1998 Plan.

In May 2011, the shareholders approved an amendment to add 600,000 shares to the 2003 Plan.

Shares available for future stock option and restricted stock unit grants, pursuant to the 2003 Plan and the 1998 Plan were 701,986 at December 31, 2013.

A summary of all stock option activity for the years ended December 31, 2013, 2012 and 2011 is as follows:

	2013					2012					2011
	Number of Shares			Weighted Average Price per Share		Number of Shares			Weighted Average Price per Share		Number of Shares			Weighted Average Price per Share
Outstanding at beginning of year		1,353,141		$	6.20		1,299,358		$	6.72		1,277,264		$	6.56
Granted		222,060			2.80		217,695			2.54		180,855			6.24
Exercised		—			—		(3,250	)		3.00		(122,220	)		4.26
Forfeited/Cancelled		(166,509	)		9.29		(160,662	)		5.48		(36,541	)		7.04
Outstanding at end of year		1,408,692		$	5.30		1,353,141		$	6.20		1,299,358		$	6.72
Options exercisable at end of year		980,932		$	6.01		855,671		$	7.21		666,797		$	7.57

At December 31, 2013, the outstanding options have exercise prices ranging from $2.00 to $11.93 and a weighted average remaining contractual life of 3.61 years. There were no options exercised during the year ended December 31, 2013. There were 61,810 exercisable in-the-money options as of December 31, 2013.

The following table summarizes information for options outstanding and for options exercisable at December 31, 2013:

			Options Outstanding				Options Exercisable
Range of Prices	Number		Weighted Average Remaining Life		Weighted Average Exercise Price		Number		Weighted Average Exercise Price
2.00 to 3.00		230,293		5.86	$	2.26		61,810	$	2.12
3.01 to 3.34		202,966		5.72		3.18		60,239		3.10
3.35 to 5.01		366,611		2.66		4.22		335,011		4.28
5.02 to 6.68		258,492		2.96		5.62		230,992		5.65
6.69 to 8.35		99,420		3.71		7.01		76,020		7.02
8.36 to 10.02		71,300		4.26		9.06		37,250		9.08
10.03 to 11.69		97,010		1.41		10.08		97,010		10.08
11.70 to 11.93		82,600		0.38		11.93		82,600		11.93
		1,408,692		3.61	$	5.30		980,932	$	6.01

The aggregate intrinsic value of the outstanding options represents the total pre-tax intrinsic value, based on the Company’s closing stock price of $3.01 as of December 31, 2013 which would have been received by the option holders had all option holders exercised their options as of that date. As of December 31, 2013, there was $640,968 of total unrecognized compensation cost related to non-vested options granted under all of the Company’s option plans. That cost is expected to be recognized over a weighted average period of 1.39 years. The total fair value of shares vested during the year ended December 31, 2013 was $617,667.

A summary of the status of the Company’s non-vested options as of December 31, 2013 and 2012 is presented below:

	December 31, 2013					December 31, 2012
Nonvested Activity:	Shares			Weighted- Fair Value		Shares			Weighted- Fair Value
Balance—Beginning		497,470		$	2.38		632,561		$	3.60
Granted		222,060		$	1.42		217,695		$	1.29
Vested		(265,995	)	$	2.32		(272,490	)	$	4.13
Nonvested Forfeited		(25,775	)	$	2.29		(80,296	)	$	3.07
Nonvested		427,760		$	1.92		497,470		$	2.38

Restricted Stock Units

In June and November 2013, the Company granted 20,250 and 17,050 RSUs to various employees. The fair value of the RSUs at the date of the grant in June and November 2013 was $2.35 and $3.27, respectively. These RSUs vest over a two-year term. The Company has recorded compensation expense of $43,117 and $9,137 during the years ended December 31, 2013 and December 31, 2012, respectively, related to these grants. As of December 31, 2013, there was $95,786 of unrecognized compensation costs related to these grants. These grants have a remaining life of 1.50 years.

The Company has an Employee Stock Purchase Plan. Under the terms of the plan, employees are entitled to purchase shares of common stock at the lower of 85% of fair market value at either the beginning or the end of each six-month option period. A total of 500,000 shares have been reserved for issuance under this plan, of which 38,295 remain available at December 31, 2013. During 2013, a total of 16,827 shares were purchased at prices ranging from $1.80 to $2.17 per share. The Company has recorded a compensation charge of $13,200, $18,721, and $38,417 in 2013, 2012 and 2011, respectively, related to this plan.

XML

Income Taxes

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Income Taxes

(6)     INCOME TAXES

The components of loss before provision for income taxes are as follows (in thousands):

	Years Ended December 31,
	2013			2012			2011
Domestic	($	7,776	)	($	9,254	)	$	(2,366	)
Foreign		(2,401	)		(1,678	)		596
Total	($	10,177	)	($	10,932	)	$	(1,770	)

For the years ended December 31, 2013, 2012 and 2011, the Company’s provision for income taxes were as shown below (in thousands):

December 31, 2013	Federal		State		Foreign			Total
Current	$	0	$	2	$	437		$	439
Deferred		0		0	$	852			852
	$	0	$	2	$	1,289		$	1,291
December 31, 2012	Federal		State		Foreign			Total
Current	$	—	$	2	$	454		$	456
Deferred		—		—		(391	)		(391	)
	$	—	$	2	$	63		$	65
December 31, 2011	Federal		State		Foreign			Total
Current	$	—	$	28	$	1,001		$	1,029
Deferred		—		—		(77	)		(77	)
	$	—	$	28	$	924		$	952

The differences between the statutory United States federal income tax rate of 34% and the Company’s effective tax rate are as follows (in thousands):

	2013			2012			2011
Provision (Benefit) at Statutory Rate	($	3,460	)	($	3,752	)	$	(602	)
State Tax Net of Federal Benefit		(261	)		(92	)		29
Foreign Tax Rate Differential		327			320			(56	)
Losses and Credits not Benefitted		3,893			2,965			1,162
Non-deductible & Other		792			624			419
Net Provision	$	1,291		$	65		$	952

The components of the net deferred tax assets at December 31, 2013 and 2012 are as follows (in thousands):

Deferred Tax Assets:	2013			2012
Federal Net Operating Loss Carryforwards	$	3,051		$	1,674
State Net Operating Loss Carryforwards		360			163
Foreign Net Operating Loss Carryforwards		860			459
Inventory Reserve		3,753			3,441
Deferred Compensation		1,693			1,789
Federal, Foreign and Other Tax Credits		2,989			2,480
Accruals and Other		1,732			1,360
Intangibles		416			467
Total Deferred Tax Assets		14,854			11,833
Valuation Allowance		(14,854	)		(10,961	)
Deferred Tax Assets		—			872
Deferred Tax Liabilities:
Depreciation and Amortization		—			(40	)
Net Deferred Tax Assets	$	—		$	832

Deferred tax assets at December 31, 2012 are recorded in Other Assets.

The deferred tax valuation allowance increased by $3,893,000 and by $2,982,000 for the years ended December 31, 2013 and 2012, respectively. In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. The Company considers the scheduled reversal of deferred tax liabilities, projected future income, and tax planning strategies in making this assessment. We have recorded a full valuation allowance against the U.S and China manufacturing subsidiary net deferred tax assets since we believe that, after considering all of the available objective evidence, both positive and negative, historical and prospective, with greater weight given to historical evidence, it is not more likely than not that these assets will be realized.

The Company has federal net operating loss carryforwards of approximately $12,699,000 that expire between 2024 and 2033, $3,354,070 of which relates to excess tax deductions from share based payments, the tax benefit of which will be recorded as an increase in additional paid-in capital when the deduction reduces current taxes payable. The Company also has state net operating loss carryforwards of approximately $4,717,000 that expire between 2014 and 2033, $1,255,000 of the tax benefit will be recorded as an increase in additional paid-in-capital when the deduction reduces current taxes payable. The Company also has foreign tax credit carryforwards of approximately $2,941,000 that expire between 2018 and 2023, $253,265 of the tax benefit will be recorded as an increase in additional paid-in capital when the deduction reduces current taxes payable.

Undistributed earnings of the Company’s foreign subsidiaries amounted to approximately $2.7 million at December 31, 2013. The Company’s historical and continuing policy is that its undistributed foreign earnings are indefinitely reinvested and, accordingly, no related provision for U.S. federal and state income taxes has been provided on the $2.7 million of undistributed foreign earnings. The amount of taxes attributable to these undistributed earnings is immaterial.

The Company applies the provisions of FASB Interpretation No. 48 (“FIN 48”), “Accounting for Uncertainty in Income Taxes “, (now codified as FASB ASC 740, “Income Tax “). In this regard, an uncertain tax position represents the Company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax expense for financial reporting purposes.

A reconciliation of the beginning and ending amount of our unrecognized tax benefits is summarized as follows:

	2013		2012		2011
Balance at beginning of period		$151		$151	$	151
Increase (decrease) related to current year tax positions		—		—		—
Increase (decrease) related to prior year tax positions		(37)		—		—
Balance at end of period		$114		$151	$	151

The unrecognized tax benefits at December 31, 2013, if recognized, would reduce the Company’s effective tax rate in the period recognized. For the year ended December 31, 2013, there were no material changes to the total amount of unrecognized tax benefits. We do not expect any significant increases or decreases for uncertain tax positions during the next 12 months.

The Company’s major tax jurisdictions include the United States and China. The Company is no longer subject to U.S. state or local and non-U.S. income tax examinations by tax authorities in its major jurisdictions for years before 2007, except to the extent of net operating loss and tax credit carryforwards from those years. The Company’s policy is to recognize interest and penalties accrued on any unrecognized tax benefits as a component of income tax expense. There is no interest or penalties accrued at December 31, 2013.

XML

Employee Benefits

12 Months Ended

Dec. 31, 2013

Postemployment Benefits [Abstract]

Employee Benefits

(7)     EMPLOYEE BENEFITS

The Company has management incentive and profit sharing plans for its executives and all of its employees. These plans provide for bonuses upon the attainment of certain financial targets. Under these plans, $84,000, $70,000 and $217,000 was expensed in 2013, 2012 and 2011, respectively.

The Company has a deferred 401(k) contribution plan that is available to cover all domestic employees of the Company. Subject to non-discriminatory restrictions on highly compensated employees, participants can voluntarily contribute a percentage of their compensation up to the plan limits, and the Company, at its discretion, may match this contribution up to a stipulated percentage. The Company’s expense under the plan was approximately $234,000, $269,000 and $321,000 for the years ended December 31, 2013, 2012 and 2011, respectively.

XML

Disclosures about the Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Disclosures about the Fair Value of Financial Instruments

(9)     DISCLOSURES ABOUT THE FAIR VALUE OF FINANCIAL INSTRUMENTS

In accordance with the requirements of FASB ASC Topic 820, Fair Value Measurements and Disclosures (“ASC 820”) , the Company groups its financial assets and liabilities measured at fair value on a recurring basis in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

• Level 1—Valuation is based upon quoted market price for identical instruments traded in active markets.

• Level 2—Valuation is based on quoted market prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.

• Level 3—Valuation is generated from model-based techniques that use significant assumptions not observable in the market. Valuation techniques include use of discounted cash flow models and similar techniques.

In accordance with the requirements of ASC 820, it is the Company’s policy to maximize the use of observable inputs and minimize the use of unobservable inputs when developing fair value measurements. When available, the Company uses quoted market prices to measure fair value. If market prices are not available, the fair value measurement is based on models that use primarily market based parameters including interest rate yield curves, option volatilities and currency rates. In certain cases where market rate assumptions are not available, the Company is required to make judgments about assumptions market participants would use to estimate the fair value of a financial instrument. Changes in the underlying assumptions used, including discount rates and estimates of future cash flows, could significantly affect the results of current or future values.

At December 31, 2013 and 2012, the Company did not have any financial assets and liabilities that required being measured at fair value in accordance with ASC 820.

The carrying amounts of the Company’s cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value due to the instruments’ short-term nature. Long-term debt is also reported at carrying value and approximates fair value as the interest rate on the mortgage note payable of 4.43% approximates the current market interest rate.

XML

Accrued Expenses - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended				12 Months Ended
	Apr. 30, 2013 Positions	Jun. 30, 2013	Dec. 31, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012 Positions	Dec. 31, 2011 Positions
Other Liabilities Disclosure [Abstract]
Term of standard warranty coverage for labor						The Company provides standard warranty coverage for parts and labor for 12 months
Standard product warranty for parts and labor period						12 months
Number of positions eliminated	12						31	17
Restructuring charges		$ 176	$ 248	$ 121	$ 55		$ 424	$ 401

XML

Stock Option and Purchase Plans - Calculation of Fair Value - Assumptions Used (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Expected Volatility	65.60%	66.60%	63.70%
Expected Life	4 years 2 months 9 days	4 years 1 month 24 days	4 years 7 months 21 days
Risk-Free Interest Rate	0.92%	0.57%	1.23%
Expected Dividend Yield	0.00%	0.00%	0.00%

XML

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Schedule of Inventories

Inventories consist of the following (in thousands):

	Years Ended December 31,
	2013		2012
Raw materials and manufactured components	$	6,010	$	4,772
Work-in-process		2,459		1,905
Finished goods		1,362		2,870
Total inventory	$	9,831	$	9,547

Schedule Showing Estimated Useful Lives for Depreciation Purposes

The estimated useful lives for depreciation purposes are as follows:

Buildings and improvements	8-25 years
Machinery and equipment	2-8 years
Software	3-10 years
Furniture and fixtures	3-8 years
Leasehold improvements	3 years

Other Assets

Other assets consist of the following (in thousands):

	2013		2012
Deferred financing costs, net of amortization	$	73	$	23
Intellectual property, net of amortization		—		23
Deferred tax asset—non-current		—		143
Long term assets		553		292
Total	$	626	$	481

Weighted Average Number of Common Shares

The weighted average number of common shares used to compute basic and diluted earnings per share consists of the following classification:

	Years Ended December 31,
	2013		2012		2011
	(In thousands)
Basic shares		9,539		9,509		9,434
Effect of dilutive options		—		—		—
Diluted shares		9,539		9,509		9,434

XML

Stock Option and Purchase Plans (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Calculation of Fair Value-Assumptions Used

We used the following assumptions for options issued during the years ended December 31, 2013, 2012 and 2011, respectively:

Calculation of Fair Values—Assumptions Used:	Dec. 31, 2013			Dec. 31, 2012			Dec. 31, 2011
Expected Volatility		65.6	%		66.6	%		63.7	%
Expected Life		4.19			4.15			4.64
Risk-Free Interest Rate		0.92	%		0.57	%		1.23	%
Expected Dividend Yield		0			0			0

Summary of Stock Option Activity

A summary of all stock option activity for the years ended December 31, 2013, 2012 and 2011 is as follows:

	2013					2012					2011
	Number of Shares			Weighted Average Price per Share		Number of Shares			Weighted Average Price per Share		Number of Shares			Weighted Average Price per Share
Outstanding at beginning of year		1,353,141		$	6.20		1,299,358		$	6.72		1,277,264		$	6.56
Granted		222,060			2.80		217,695			2.54		180,855			6.24
Exercised		—			—		(3,250	)		3.00		(122,220	)		4.26
Forfeited/Cancelled		(166,509	)		9.29		(160,662	)		5.48		(36,541	)		7.04
Outstanding at end of year		1,408,692		$	5.30		1,353,141		$	6.20		1,299,358		$	6.72
Options exercisable at end of year		980,932		$	6.01		855,671		$	7.21		666,797		$	7.57

Summary of Options Outstanding and for Options Exercisable

The following table summarizes information for options outstanding and for options exercisable at December 31, 2013:

			Options Outstanding				Options Exercisable
Range of Prices	Number		Weighted Average Remaining Life		Weighted Average Exercise Price		Number		Weighted Average Exercise Price
2.00 to 3.00		230,293		5.86	$	2.26		61,810	$	2.12
3.01 to 3.34		202,966		5.72		3.18		60,239		3.10
3.35 to 5.01		366,611		2.66		4.22		335,011		4.28
5.02 to 6.68		258,492		2.96		5.62		230,992		5.65
6.69 to 8.35		99,420		3.71		7.01		76,020		7.02
8.36 to 10.02		71,300		4.26		9.06		37,250		9.08
10.03 to 11.69		97,010		1.41		10.08		97,010		10.08
11.70 to 11.93		82,600		0.38		11.93		82,600		11.93
		1,408,692		3.61	$	5.30		980,932	$	6.01

Summary of the Status of the Company's Non-vested Options

A summary of the status of the Company’s non-vested options as of December 31, 2013 and 2012 is presented below:

	December 31, 2013					December 31, 2012
Nonvested Activity:	Shares			Weighted- Fair Value		Shares			Weighted- Fair Value
Balance—Beginning		497,470		$	2.38		632,561		$	3.60
Granted		222,060		$	1.42		217,695		$	1.29
Vested		(265,995	)	$	2.32		(272,490	)	$	4.13
Nonvested Forfeited		(25,775	)	$	2.29		(80,296	)	$	3.07
Nonvested		427,760		$	1.92		497,470		$	2.38

XML

Employee Benefits - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Sale Of Subsidiary [Abstract]
Management incentive and profit sharing plans expense	$ 84,000	$ 70,000	$ 217,000
Company has a deferred 401(k) contribution plan Expenses	$ 234,000	$ 269,000	$ 321,000

XML

Foreign Operations - Schedule of Tangible Long-lived Assets by Geographic Location (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Tangible long-lived assets, Net	$ 3,386	$ 4,669
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Tangible long-lived assets, Net	2,889	3,936
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Tangible long-lived assets, Net	$ 497	$ 733

XML

Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Comprehensive loss is calculated as follows:
Net loss	$ (11,468)	$ (10,997)	$ (2,722)
Other comprehensive income:
Foreign currency translation adjustment	238	126	450
Comprehensive loss	$ (11,230)	$ (10,871)	$ (2,272)

XML

Debt, Capital Leases, Commitments and Contingencies

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Debt, Capital Leases, Commitments and Contingencies

(3)     DEBT, CAPITAL LEASES, COMMITMENTS AND CONTINGENCIES

On March 30, 2006, the Company entered into a $10 million mortgage note secured by its real property in Billerica, Massachusetts, which had an initial maturity date of December 23, 2015. On September 9, 2010, the Company signed a First Loan Modification Agreement relating to the mortgage note, which reduced the annual interest rate from 6.84% to 5.50% and the monthly payment from $76,280 to $69,000.

On August 31, 2009, the Company entered into a pledge and assignment agreement with a bank. The bank agrees, at the Company’s request, to issue letters of credit in the bank’s name and the Company agrees to cash collateralize letters of credit via restricted cash deposits at the bank. As of December 31, 2013 and 2012, the value of the outstanding letters of credit issued by the bank for the Company and cash collateralized by the Company was $247,515 and $247,090, respectively. This restricted cash value is included in the Company’s balance sheet in other current assets.

On September 26, 2013, the Company signed a Second Loan Modification Agreement relating to the mortgage note, which extended the maturity date from December 23, 2015 to September 26, 2023. The modification also reduced the annual interest rate from 5.50% to 4.43% through September 26, 2018, at which time the interest rate will be adjusted to a per annum fixed rate equal to the aggregate of the Federal Home Loan Board (FHLB) Five Year Classic Advance Rate plus two hundred forty basis points. The current monthly payment was reduced from $69,000 to $57,997. The mortgage note had an outstanding balance on December 31, 2013 of approximately $7.6 million. All outstanding principal and accrued and unpaid interest will be due and payable on the maturity date.

Long-term debt consisted of:

	December 31, 2013		December 31, 2012
	($ in thousands)
Mortgage note payable, interest rate of 4.43% and 5.50% at December 31, 2013 and December 31, 2012, respectively	$	7,586	$	7,964
Less—current portion of long-term debt		367		400
Long-Term debt, less current portion	$	7,219	$	7,564

Under the terms of the debt, the minimum principal repayments of long-term debt and operating lease obligations by year are as follows (in thousands):

			Operating
	Mortgage		Leases		Total
2014		368		196		564
2015		384		61		445
2016		401		24		425
2017		419		—		419
2018 & Thereafter		6,014		—		6,014
	$	7,586	$	281	$	7,867

Under the Company’s operating lease agreements, the approximate future minimum obligation as of December 31, 2013 is as follows: $195,000 for real estate, $18,000 for automobiles and $68,000 for equipment.

The Company has operating leases for its Shanghai manufacturing operations that allow extensions. As of December 31, 2013, the future minimum lease commitment for this facility is approximately $86,000. The Company has an operating lease for its UK facility that expires in May 2015. As of December 31, 2013, the future minimum lease commitment for this facility is approximately $54,000 payable through May 2015. As of December 31, 2013, the future minimum lease commitment for the Singapore and Malaysia office is approximately $43,000 and $11,000, respectively.

Rent expense was approximately $421,000 in 2013, $390,000 in 2012 and $477,000 in 2011.

As an equipment manufacturer, the Company generates and disposes of small quantities of solid waste that are considered hazardous under Environmental Protection Agency (“EPA”) regulations. Because the Company historically used a waste disposal firm that disposed of the solid waste at a site that the EPA has designated as a Superfund site, the Company has been named by the EPA as one of the entities responsible for a portion of the expected clean-up costs. Based on the Company’s proportional responsibility, as negotiated with and agreed to by the EPA, the Company’s liability related to this matter is $225,140. This amount is included in Accrued Expense on the Consolidated Balance Sheet as of December 31, 2013. On October 2, 2009, in accordance with the agreement, the Company established a letter of credit for $225,140 to the benefit of the EPA for potential cash payments as settlements for the Company’s proportional liability.

XML

Schedule II - Valuation and Qualifying Accounts (Detail) (Allowance for Doubtful Accounts [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowance for doubtful accounts, Balance at Beginning of Period	$ 1,583	$ 246	$ 327
Allowance for doubtful accounts, Additions Charged to Costs and Expenses	(266)	1,383	(58)
Allowance for doubtful accounts, Additions Charged to Other Accounts
Allowance for doubtful accounts, Deductions	(37)	(46)	(23)
Allowance for doubtful accounts, Balance at End of Period	$ 1,280	$ 1,583	$ 246

XML

Selected Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Summary of Selected Quarterly Financial Information

The following tables set forth selected quarterly financial information for the fiscal years ended December 31, 2013 and 2012. The operating results for any given quarter are not necessarily indicative of results for any future period.

	Quarters Ended
	Apr. 01, 2012			July 01, 2012			Sep. 30, 2012			Dec. 31, 2012			March 31, 2013			June 30, 2013			Sep. 29, 2013			Dec. 31, 2013
	(in thousands, except per share data)
Net sales	$	16,272		$	14,598		$	14,137		$	13,082		$	10,503		$	14,244		$	12,014		$	10,993
Cost of goods sold		10,994			9,891			10,018			10,714			7,773			8,850			8,480			7,945
Gross profit		5,278			4,707			4,119			2,368			2,730			5,394			3,534			3,048
Selling, general and administrative		5,413			5,240			4,925			5,387			4,653			4,355			6,228			4,550
Research, development and engineering		1,482			1,306			1,333			1,329			1,134			1,017			1,276			1,177
Restructuring		55			121			—			248			—			—			—			—
Operating income (loss)		(1,672	)		(1,960	)		(2,139	)		(4,596	)		(3,057	)		22			(3,970	)		(2,679	)
Interest expense, net		(98	)		(98	)		(104	)		(99	)		(101	)		(96	)		(90	)		(78	)
Foreign exchange gain (loss)		(62	)		10			(3	)		(169	)		(76	)		(38	)		(33	)		(46	)
Other income, net		—			1			1			56			41			5			17			2
Loss before provision
(benefit) for income taxes		(1,832	)		(2,047	)		(2,245	)		(4,808	)		(3,193	)		(107	)		(4,076	)		(2,801	)
Provision (benefit) for income taxes		175			102			153			(365	)		(69	)		154			998			208
Net loss	$	(2,007	)	$	(2,149	)	$	(2,398	)	$	(4,443	)	$	(3,124	)	$	(261	)	$	(5,074	)	$	(3,009	)
Loss per share:
Basic	$	(0.21	)	$	(0.23	)	$	(0.25	)	$	(0.47	)	$	(0.33	)	$	(0.03	)	$	(0.53	)	$	(0.32	)
Diluted	$	(0.21	)	$	(0.23	)	$	(0.25	)	$	(0.47	)	$	(0.33	)	$	(0.03	)	$	(0.53	)	$	(0.32	)
Weighted average number of shares outstanding:
Basic		9,502			9,503			9,516			9,516			9,531			9,532			9,545			9,548
Diluted		9,502			9,503			9,516			9,516			9,531			9,532			9,545			9,548

Percentage of Net Sales of Selected Quarterly Financial Information

Quarters Ended
	Apr. 01,			July 01,			Sep. 30,			Dec. 31,			March 31,			June 30,			Sep. 29,			Dec. 31,
	2012			2012			2012			2012			2013			2013			2013			2013
PERCENTAGE OF NET SALES:
Net sales		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%
Cost of goods sold		67.6	%		67.8	%		70.9	%		81.9	%		74.0	%		62.1	%		70.6	%		72.3	%
Gross profit		32.4	%		32.2	%		29.1	%		18.1	%		26.0	%		37.9	%		29.4	%		27.7	%
Selling, general and administrative		33.3	%		35.9	%		34.8	%		41.2	%		44.3	%		30.6	%		51.8	%		41.4	%
Research, development and engineering		9.1	%		8.9	%		9.4	%		10.2	%		10.8	%		7.1	%		10.6	%		10.7	%
Restructuring		0.3	%		0.8	%		0.0	%		1.9	%		0.0	%		0.0	%		0.0	%		0.0	%
Operating income (loss)		(10.3	)%		(13.4	)%		(15.1	)%		(35.1	)%		(29.1	)%		0.2	%		(33.0	)%		(24.4	)%
Interest expense, net		(0.6	)%		(0.7	)%		(0.7	)%		(0.8	)%		(1.0	)%		(0.7	)%		(0.7	)%		(0.7	)%
Foreign exchange gain (loss)		(0.4	)%		0.1	%		(0.0	)%		(1.3	)%		(0.7	)%		(0.3	)%		(0.3	)%		(0.4	)%
Other income, net		0.0	%		0.0	%		0.0	%		0.4	%		0.4	%		0.0	%		0.1	%		0.0	%
Loss before provision (benefit) for income taxes		(11.3	)%		(14.0	)%		(15.9	)%		(36.8	)%		(30.4	)%		(0.8	)%		(33.9	)%		(25.5	)%
Provision (benefit) for income taxes		1.1	%		0.7	%		1.1	%		(2.8	)%		(0.7	)%		1.1	%		8.3	%		1.9	%
Net loss		(12.3	)%		(14.7	)%		(17.0	)%		(34.0	)%		(29.7	)%		(1.8	)%		(42.2	)%		(27.4	)%

XML

Debt, Capital Leases, Commitments and Contingencies - Schedule of Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Disclosure [Abstract]
Mortgage note payable, interest rate of 4.43% and 5.50% at December 31, 2013 and December 31, 2012, respectively	$ 7,586	$ 7,964
Less-current portion of long-term debt	367	400
Long-term debt, less current portion	$ 7,219	$ 7,564

XML

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Nature of Operations

NATURE OF OPERATIONS

BTU International, Inc. and its wholly owned subsidiaries (the “Company”) are primarily engaged in the design, manufacture, sale, and service of thermal processing systems, which are used as capital equipment in various manufacturing processes, primarily in the electronics and alternative energy industries.

Comprehensive Income (Loss)

COMPREHENSIVE INCOME (LOSS)

The Company follows Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 220, Comprehensive Income (“ASC 220”) as amended by Accounting Standards Update (ASU) 2011-05, Presentation of Comprehensive Income. ASC 220 requires companies to report all changes in equity during a period, resulting from net income (loss) and transactions from non-owner sources, in a financial statement in the period in which they are recognized. On January 1, 2012, the date of adoption of ASU 2011-05, we had the option to report total comprehensive income, including components of net income and components of other comprehensive income, as a single continuous statement or in two separate but consecutive statements. We elected to present comprehensive income in two separate but consecutive statements as part of the consolidated financial statements. Other than a change in presentation, the implementation of this accounting pronouncement did not have a material impact on our consolidated financial statements.

Principles of Consolidation and the Use of Estimates

PRINCIPLES OF CONSOLIDATION AND THE USE OF ESTIMATES

The accompanying consolidated financial statements include the accounts of the Company. All material inter-company balances and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. The primary estimates used in the consolidated financial statements include the percentage of completion revenue method, inventory valuation, allowance for doubtful accounts, valuation of deferred income taxes, stock-based compensation and warranty reserves.

Cash and Cash Equivalents

CASH AND CASH EQUIVALENTS

The Company has classified certain highly liquid financial instruments, with original maturities of three months or less, as cash equivalents.

Accounts Receivable

ACCOUNTS RECEIVABLE

Accounts receivable are stated at the amount management expects to collect from outstanding balances. An allowance for doubtful accounts is provided for those accounts receivable considered to be uncollectible based upon historical experience and management’s evaluation of outstanding accounts receivable at the end of the year. Uncollectible accounts are written off against the allowance when identified. Bad debt expense (recovery) was ($280,000), $1,345,000, and ($49,000) for 2013, 2012 and 2011, respectively.

Inventories

INVENTORIES

Our inventories consist of material, labor and manufacturing overhead costs. We determine the cost of inventory based on a first-in, first-out method. We regularly review the quantity of inventories on hand and compare these quantities to the expected usage of each applicable product or product line. Our inventories are adjusted in value to the lower of cost or net realizable value and a new cost basis is established. Since the value of our inventories depends in part on our estimates of each product’s net realizable value, adjustments may be needed to reflect changes in valuation. Any adjustments we are required to make to lower the value of the inventories are recorded as a charge to cost of sales.

Inventories consist of the following (in thousands):

	Years Ended December 31,
	2013		2012
Raw materials and manufactured components	$	6,010	$	4,772
Work-in-process		2,459		1,905
Finished goods		1,362		2,870
Total inventory	$	9,831	$	9,547

The Company recorded inventory write-downs of $1,868,000, $5,261,000, and $2,294,000, for the years ended 2013, 2012 and 2011, respectively. The write-downs recorded are net of recoveries of sold inventory that had previously been written-down in the amounts of approximately $250,000, $60,000, and $485,000 for the years ended 2013, 2012 and 2011, respectively.

Property Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

The Company provides for depreciation using the straight-line method over the assets’ useful lives. Leasehold improvements are amortized on a straight-line basis over the lesser of the estimated useful life of the asset or the lease term. The estimated useful lives for depreciation purposes are as follows:

Buildings and improvements	8-25 years
Machinery and equipment	2-8 years
Software	3-10 years
Furniture and fixtures	3-8 years
Leasehold improvements	3 years

Depreciation expense was approximately $1,603,000, $1,641,000, and $1,624,000 for the years ended December 31, 2013, 2012, and 2011, respectively.

Maintenance and repairs are charged to operations as incurred. When equipment and improvements are sold or otherwise disposed of, the asset cost and accumulated depreciation are removed from the accounts, and the resulting gain or loss, if any, is included in the results of operations.

The Company evaluates long-lived assets such as intangible assets and property, plant and equipment under FASB ASC 360-10-35-15, Impairment or Disposal of Long-Lived Assets. This statement requires that long-lived assets and certain identifiable intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset or asset group to future undiscounted net cash flows expected to be generated by the asset or asset group. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. No impairment of long-lived assets were identified during the years ended December 31, 2013, 2012 and 2011.

Other Assets

OTHER ASSETS

Other assets consist of the following (in thousands):

	2013		2012
Deferred financing costs, net of amortization	$	73	$	23
Intellectual property, net of amortization		—		23
Deferred tax asset—non-current		—		143
Long term assets		553		292
Total	$	626	$	481

Deferred financing costs, capitalized in 2013, are being amortized over ten years, the term of the mortgage note. Amortization on deferred financing costs was approximately $7,000, $7,000 and $7,000 in 2013, 2012 and 2011, respectively. Amortization on intellectual property was approximately $23,000, $54,000, and $169,000 in 2013, 2012 and 2011, respectively.

Income Taxes

INCOME TAXES

Deferred tax assets and liabilities are recognized for the expected future tax consequences of events that have been included in the consolidated financial statements or tax returns. The amounts of deferred tax assets or liabilities are based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided if, based on the weight of the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

We assess tax positions taken on tax returns, including recognition of potential interest and penalties, in accordance with the recognition thresholds and measurement attributes outlined in ASC 740. Interest and penalties recognized, if any, would be classified as a component of income tax expense

Translation of Foreign Currencies

TRANSLATION OF FOREIGN CURRENCIES

Assets and liabilities of the Company’s foreign operations are translated from their functional currency into U.S. dollars at year end exchange rates. Revenue and expense items are translated at weighted average rates of exchange prevailing during the year. Gains and losses arising from translation are accumulated as a separate component of stockholders’ equity, as the functional currency of the subsidiaries is their local currency, and the reporting currency of the Company is the U.S. dollar. Exchange gains and losses arising from transactions denominated in foreign currencies are included in income as incurred.

Patents

PATENTS

The Company has patents in the U.S. and certain foreign countries for some of its products and processes. No value has been assigned to these patents in the accompanying consolidated financial statements.

Revenue Recognition

REVENUE RECOGNITION

The Company recognizes revenue in accordance with FASB ASC Topic 605, Revenue Recognition (“ASC 605”). Under these guidelines, revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services rendered, the price is fixed or determinable and payment is reasonably assured. Under these requirements, when the terms of sale include customer acceptance provisions, and compliance with those provisions has not been demonstrated, revenues are recognized upon acceptance.

Applying the requirements of ASC 605 to future sales arrangements used in the Company’s equipment sales may result in the deferral of the revenue for some equipment sales. Products shipped to customers that do not meet the threshold requirements for revenue recognition as outlined above remain in the Company’s inventory on the Consolidated Balance Sheet until revenue is recognized. Any cash collected from customers for products for which revenue has been deferred is recorded as Deferred Revenue on the Consolidated Balance Sheet.

The Company also has certain sales transactions for products, which are not completed within the normal operating cycle of the business. It is the Company’s policy to account for these transactions using the percentage of completion method for revenue recognition purposes when all of the following criteria exist: (1) The Company has received the customer’s purchase order or entered into a legally binding contract, (2) The customer is credit worthy and collection is probable or customer prepayments are required at product completion milestones or specific dates, (3) The sales value of the product to be delivered is significant in amount when compared to the Company’s other products, and (4) Product costs can be reasonably estimated, there is no major technological uncertainty and the total engineering, material procurement, product assembly and test cycle time extend over a period of six months or longer.

Under the percentage of completion method, revenues and gross margins to date are recognized based upon the ratio of costs incurred to date compared to the latest estimate of total costs to complete the product as a percentage of the total contract revenue for the product. Revisions in costs and gross margin percentage estimates are reflected in the period in which the facts causing the revision become known. Provisions for total estimated losses on uncompleted contracts, if any, are made in the period in which such losses are determined. For the years ended December 31, 2013, 2012 and 2011, $0, $1,731,686, and $2,406,714, respectively, were recognized as revenue using the percentage of completion method.

The Company accounts for shipping and handling costs billed to customers in accordance with FASB ASC 605-45, Shipping and Handling Fees and Costs. Amounts billed to customers for shipping and handling costs are recorded as revenues with the associated costs reported as cost of goods sold.

Research Development and Engineering

RESEARCH, DEVELOPMENT AND ENGINEERING

Research, development and engineering costs are charged to expense as incurred.

Earnings Per Share Information

EARNINGS PER SHARE INFORMATION

Basic earnings per share (EPS) is computed by dividing net income (loss) available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted EPS is computed using the weighted-average number of common and potentially dilutive securities outstanding during the period, using the treasury stock method. Potentially dilutive securities include outstanding stock options and unvested restricted stock units (RSUs). Due to their antidilutive effect, approximately 1,454,292, 1,376,041, and 1,299,358 options to purchase common stock were excluded from the calculation of diluted loss per share for the years ended December 31, 2013, 2012 and 2011, respectively. However, these potentially dilutive securities could become dilutive in future periods.

The weighted average number of common shares used to compute basic and diluted earnings per share consists of the following classification:

	Years Ended December 31,
	2013		2012		2011
	(In thousands)
Basic shares		9,539		9,509		9,434
Effect of dilutive options		—		—		—
Diluted shares		9,539		9,509		9,434

Recent Accounting Pronouncements

RECENT ACCOUNTING PRONOUNCEMENTS

In February 2013, the FASB issued ASU No. 2013-02, Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income, that requires entities to disclose items reclassified out of accumulated other Comprehensive Income (AOCI) and into net income in their entirety, the effect of the reclassification on each affected net income line item and for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required U.S. GAAP disclosures. This consolidated standard is effective for annual periods beginning after December 15, 2012 and interim periods within those years. The application of this standard did not have material impact on the Company’s consolidated financial statements.

Subsequent Events

SUBSEQUENT EVENTS

For the fiscal year ended December 31, 2013, the Company has evaluated subsequent events for potential recognition and disclosure in the financial statements through the date these financial statements were filed with the Securities and Exchange Commission.