6-K

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

For the month of December, 2008

Commission File Number 000-13355

ASM INTERNATIONAL N.V.

(Translation of registrant’s name into English)

VERSTERKERSTRAAT 8

1322 AP ALMERE

THE NETHERLANDS

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  x    Form 40-F  ¨

Indicate by check mark if the registrant is submitting the form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ¨

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ¨

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and had not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.    Yes  ¨    No  x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-                     .

Exhibits
Exhibit 99.1	ASM Unveils High-Speed ALD Process that Doubles Throughput for 45 nm High-k Gate Manufacturing
Exhibit 99.2	ASM International N.V. Buys Back USD 48 million of Convertible Notes

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: December 15, 2008	ASM INTERNATIONAL N.V.
		/s/    ARNOLD J.M. VAN DER VEN
		Arnold J.M. van der Ven
		Managing Director and Chief Financial Officer

ASM INTERNATIONAL N.V.

(THE “REGISTRANT”)

(COMMISSION FILE NO. 0-13355)

EXHIBIT INDEX

TO

FORM 6-K

DATED December 15, 2008

Exhibit No.	Exhibit Description	Filed Herewith
99.1	ASM Unveils High-Speed ALD Process that Doubles Throughput for 45 nm High-k Gate Manufacturing	X
99.2	ASM International N.V. Buys Back USD 48 million of Convertible Notes	X

EX-99.1

Exhibit 99.1

ASM Unveils High-Speed ALD Process that Doubles Throughput for 45 nm High-k Gate Manufacturing

Pulsar^® Already Running High-Speed HfO₂ ALD Process at Major IDM Sites

ALMERE, THE NETHERLANDS, December 11, 2008 – Further extending its leadership in the critical atomic layer deposition (ALD) market, ASM International N.V. (NASDAQ: ASMI and Euronext Amsterdam: ASM), announced that it has qualified a high-speed ALD process that doubles the throughput of its hafnium oxide (HfO₂) films for 45 nm high-k gates in volume manufacturing.

The new high-speed ALD process is designed to run on ASM’s Pulsar process module, and is achieved on the existing reactor design. Improvements are realized through proprietary process optimization techniques. The new process is already running in manufacturing environments at multiple customer sites, and is achieving more than twice the deposition rates with no negative impact on film and device performance. The process is proven to be extendible to the 32nm node with the same productivity advantages.

“The ALD process is desirable because of its excellent process control, film uniformity and purity,” explained Glen Wilk, Product Manager for Transistor Products at ASM. “By more than doubling the deposition rates, we can now achieve throughput for 32 nm gate dielectrics that is comparable to MOCVD deposition methods, while retaining ALD layer quality. The Pulsar ALD reactor is established as the industry leader for hafnium based high-k gate dielectrics, and this productivity improvement will allow us to extend that leadership into the 22 nm node and beyond.”

About the Pulsar

ASM’s Pulsar enables advanced 45 nm and 32 nm transistor manufacturing through its ALD process that deposits one atomic layer at a time. Implementing high-k films, such as Hafnium Oxide and Hafnium Silicate (HfSiO), extends transistor gate technology beyond 45nm because the high-k materials have much better insulating properties than silicon oxide. ASM’s high-k dielectrics process, as delivered by the Pulsar, enables faster and smaller chips suited for high performance servers and advanced products that require low power such as laptops, PDAs and

smart-phones. The Pulsar is actively in production at 45 nm and has been successfully demonstrated for ALD in the 32 nm and 22 nm nodes. ASM’s Pulsar 3000 was also selected as a 2008 Editor’s Choice Best Product winner by Semiconductor International.

About ASM

ASM International N.V. and its subsidiaries design and manufacture equipment and materials used to produce semiconductor devices. The company provides production solutions for wafer processing (Front-end segment) as well as assembly and packaging (Back-end segment) through facilities in the United States, Europe, Japan and Asia. ASM International’s common stock trades on NASDAQ (symbol ASMI) and the Euronext Amsterdam Stock Exchange (symbol ASM). For more information, visit ASMI’s web site at www.asm.com.

# # #

Safe Harbor Statement under the U.S. Private Securities Litigation Reform Act of 1995: All matters discussed in this statement, except for any historical data, are forward-looking statements. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. These include, but are not limited to, economic conditions and trends in the semiconductor industry generally and the timing of the industry cycles specifically, currency fluctuations, the timing of significant orders, market acceptance of new products, competitive factors, litigation involving intellectual property, shareholder and other issues, commercial and economic disruption due to natural disasters, terrorist activity, armed conflict or political instability, epidemics and other risks indicated in the Company’s filings from time to time with the U.S. Securities and Exchange Commission, including, but not limited to, the Company’s reports on Form 20-F and Form 6-K. The Company assumes no obligation nor intends to update or revise any forward-looking statements to reflect future developments or circumstances.

ASM International:

Mary Jo Dieckhaus

Investor Relations

+1 212-986-2900

MaryJo.Dieckhaus@asm.com

EX-99.2

Exhibit 99.2

ASM International N.V.

ASM International N.V. Buys Back USD 48 million of Convertible Notes

ALMERE, The Netherlands – December 12, 2008 – ASM International (Nasdaq: ASMI and Euronext Amsterdam: ASM) announced today that it has completed the buyback of USD 48 million nominal amount of its 5 ¹/4% Convertible Subordinated Notes due 2010 for a total consideration of approximately € 30 million. The buyback has been funded by the remaining € 13 million of the 2008 cash dividend received from its subsidiary, ASM Pacific Technology, Ltd. (ASMPT), and expected future ASMPT cash dividends.

By spending € 30 million equal to USD 38 million to retire USD 48 million of these debentures, ASMI lowered its Front-end net debt position by € 8 million, decreased interest charges, and reduced the potential share dilution related to conversion of these notes. The buyback decreased the total amount of 2010 debentures outstanding from USD 69 million at the end of September 2008 to USD 21 million.

With this buyback, ASMI completes its commitment to use the 2008 ASMPT dividend stream, as was the case in 2007, to increase shareholder value. In 2006, ASMI announced a flexible program over at least the three year-period, 2007-2009, to use these cash dividends from ASMPT for one or more of four options: the reduction of outstanding convertible debt, repurchase of common shares, cash dividends to shareholders, and/or purchase of a limited number of ASMPT shares.

Because the notes were bought at a discount to the nominal amount, the current buyback will incur a one-time gain of € 8 million to the fourth quarter income statement.

ASM International N.V. and its subsidiaries design and manufacture equipment and materials used to produce semiconductor devices. The company provides production solutions for wafer processing (Front-end segment) as well as assembly and packaging (Back-end segment) through facilities in the United States, Europe, Japan and Asia. ASM International’s common stock trades on NASDAQ (symbol ASMI) and the Euronext Amsterdam Stock Exchange (symbol ASM). For more information, visit ASMI’s web site at www.asm.com.

# # #

Safe Harbor Statement under the U.S. Private Securities Litigation Reform Act of 1995: All matters discussed in this statement, except for any historical data, are forward-looking statements. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. These include, but are not limited to, economic conditions and trends in the semiconductor industry generally and the timing of the industry cycles specifically, currency fluctuations, the timing of significant orders, market acceptance of new

products, competitive factors, litigation involving intellectual property, shareholder and other issues, commercial and economic disruption due to natural disasters, terrorist activity, armed conflict or political instability, epidemics and other risks indicated in the Company’s filings from time to time with the U.S. Securities and Exchange Commission, including, but not limited to, the Company’s reports on Form 20-F and Form 6-K. The Company assumes no obligation nor intends to update or revise any forward-looking statements to reflect future developments or circumstances.

Contacts:

Naud van der Ven

Chief Financial Officer

+31 (0)8810 08540

Naud.van.der.ven@asm.com

Erik Kamerbeek

Investor Relations

+31 (0)8810 08500

Erik.Kamerbeek@asm.com

Mary Jo Dieckhaus

Investor Relations

+1 212-986-2900

MaryJo.Dieckhaus@asm.com