Exhibit 3.2

AMENDED AND RESTATED

BYLAWS

GT ADVANCED TECHNOLOGIES INC.

A Delaware corporation

(Amended as of April 16, 2012)

ARTICLE I

OFFICES

Section.1 Registered Office. The registered office of GT Advanced Technologies Inc. (the “Corporation”) in the State of Delaware is located at 160 Greentree Drive, Suite 101, in the City of Dover, County of Kent, 19904. The name of the Corporation’s registered agent at such address shall be National Registered Agents, Inc. The registered office and/or registered agent of the Corporation may be changed from time to time by action of the Board of Directors of the Corporation (the “Board of Directors”).

Section.2 Other Offices. The Corporation may also have offices at such other places, both within and without the State of Delaware, as the Board of Directors may from time to time determine or the business of the Corporation may require.

ARTICLE II

MEETINGS OF STOCKHOLDERS

Section.1 Place of Meetings. The Board of Directors may designate any place, either within or without the State of Delaware, as the place of meeting for any annual meeting or for any special meeting.

Section.2 Annual Meeting. An annual meeting of stockholders shall be held each year and stated in a notice of meeting or in a duly executed waiver thereof. The date, time and place of such meeting shall be determined by the Chairman of the Board of Directors; provided that if the Chairman does not act, the Board of Directors shall determine the date, time and place of such meeting. At such annual meeting, the stockholders shall elect, by a plurality vote, a Board of Directors and transact such other business as may properly be brought before the meeting.

Section.3 Special Meetings. Special meetings of the stockholders may only be called in the manner provided in the Corporation’s certificate of incorporation as then in effect (the “Certificate of Incorporation”).

Section.4 Notice of Meetings. Whenever stockholders are required or permitted to take action at a meeting, written notice of each annual and special meeting of stockholders stating the date, time and place of the meeting, and, in the case of a special meeting, the purpose or purposes for which the meeting is called, shall be given to each stockholder of record entitled to vote thereat not less than thirty (30) nor more than sixty (60) days before the date of the meeting. Business transacted at any special meeting of stockholders shall be limited to the purposes stated in the notice. Notice shall be given personally or by mail and, if by mail, shall be sent in a postage prepaid envelope, addressed to the stockholder at his, her or its address as the same appears on the records of the Corporation. Notice by mail shall be deemed given at the time when the same shall be deposited in the United States mail, postage prepaid. Notice of any meeting shall not be required to be given to any person who attends such meeting, except when such person attends the meeting in person or by proxy for the express purpose of objecting, at the beginning of the meeting, to the transaction of any business because the meeting is not lawfully called or convened, or who, either before or after the meeting, shall submit a signed written waiver of notice, in person or by proxy. Neither the business to be transacted at, nor the purpose of, an annual or special meeting of stockholders need be specified in any written waiver of notice.

Section.5 List of Stockholders. The officer having charge of the stock ledger of the Corporation shall prepare and make, at least ten (10) days before each meeting of stockholders, a complete list of the stockholders entitled to vote at the meeting, arranged in alphabetical order, showing the address of and the number of shares registered in the name of each stockholder. Such list shall be open to the examination of any stockholder, for any purpose germane to the meeting for a period of at least ten (10) days prior to the meeting: (a) on a reasonably accessible electronic network, provided that the information required to gain access to such list is provided with the notice of the meeting or (b) during ordinary business hours, either at a place within the city where the meeting is to be held, which place shall be specified in the notice of the meeting or, if not so specified, at the place where the meeting is to be held. The list shall also be produced and kept at the time and place of the meeting during the whole time thereof, and may be inspected by any stockholder who is present.

Section.6 Quorum; Adjournments. The holders of a majority of the voting power of the issued and outstanding stock of the Corporation entitled to vote thereat, present in person or represented by proxy, shall constitute a quorum for the transaction of business at all meetings of stockholders, except as otherwise provided by statute or by the Certificate of Incorporation. If, however, such quorum shall not be present or represented by proxy at any meeting of stockholders, the stockholders entitled to vote thereat, present in person or represented by proxy, shall have the power to adjourn the meeting from time to time, without notice other than announcement at the meeting, until a quorum shall be present or represented by proxy. At such adjourned meeting at which a quorum shall be present or represented by proxy, any business may be transacted which might have been transacted at the meeting as originally called. If the adjournment is for more than thirty (30) days, or, if after adjournment a new record date is set, a notice of the adjourned meeting shall be given to each stockholder of record entitled to vote at the meeting.

Section.7 Organization. At each meeting of stockholders, the Chairman of the Board of Directors, if one shall have been elected, or, in his absence or if one shall not have been

elected, the chief executive officer shall act as chairman of the meeting. The secretary or, in his absence or inability to act, the person whom the chairman of the meeting shall appoint secretary of the meeting shall act as secretary of the meeting and keep the minutes thereof.

Section.8 Order of Business. The order of business at all meetings of the stockholders shall be as determined by the chairman of the meeting.

Section.9 Voting. Except as otherwise provided by the Certificate of Incorporation, the General Corporation Law of the State of Delaware or the certificate of designations relating to any outstanding class or series of Preferred Stock, each stockholder of the Corporation shall be entitled at each meeting of stockholders to one (1) vote for each share of capital stock of the Corporation standing in his name on the record of stockholders of the Corporation:

(a) on the date fixed pursuant to the provisions of Section 13 of this Article II of these Bylaws as the record date for the determination of the stockholders who shall be entitled to notice of and to vote at such meeting; or

(b) if no such record date shall have been so fixed, then at the close of business on the day next preceding the day on which notice thereof shall be given, or, if notice is waived, at the close of business on the date next preceding the day on which the meeting is held.

Each stockholder entitled to vote at any meeting of stockholders may authorize another person or persons to act for him by a proxy which is in writing or transmitted as permitted by law, including, without limitation, electronically, via telegram, internet, interactive voice response system, or other means of electronic transmission executed or authorized by such stockholder or his attorney-in-fact, but no proxy shall be voted after three (3) years from its date, unless the proxy provides for a longer period. Any such proxy shall be delivered to the secretary of the meeting at or prior to the time designated in the order of business for so delivering such proxies. Any proxy transmitted electronically shall set forth information from which it can be determined by the secretary of the meeting that such electronic transmission was authorized by the stockholder. When a quorum is present at any meeting, the vote of the holders of a majority of the voting power of the issued and outstanding stock of the Corporation entitled to vote thereon, present and voting, in person or represented by proxy, shall decide any question brought before such meeting, unless the question is one upon which by express provision of statute or of the Certificate of Incorporation or of these Bylaws, a different vote is required, in which case such express provision shall govern and control the decision of such question. Unless required by statute, or determined by the chairman of the meeting to be advisable, the vote on any question need not be by ballot. On a vote by ballot, each ballot shall be signed by the stockholder voting, or by his proxy, if there be such proxy, and shall state the number of shares voted and the number of votes to which each share is entitled.

Section.10 Inspectors. The Board of Directors may, in advance of any meeting of stockholders, appoint one or more inspectors to act at such meeting or any adjournment thereof. If any of the inspectors so appointed shall fail to appear or act, the chairman of the meeting shall, or if inspectors shall not have been appointed, the chairman of the meeting may, appoint one or

more inspectors. Each inspector, before entering upon the discharge of his duties, shall take and sign an oath faithfully to execute the duties of inspector at such meeting with strict impartiality and according to the best of his ability. The inspectors shall determine the number of shares of capital stock of the Corporation outstanding and the voting power of each, the number of shares represented at the meeting, the existence of a quorum, the validity and effect of proxies, and shall receive votes, ballots or consents, hear and determine all challenges and questions arising in connection with the right to vote, count and tabulate all votes, ballots or consents, determine the results, and do such acts as are proper to conduct the election or vote with fairness to all stockholders. On request of the chairman of the meeting, the inspectors shall make a report in writing of any challenge, request or matter determined by them and shall execute a certificate of any fact found by them. No director or candidate for the office of director shall act as an inspector of an election of directors. Inspectors need not be stockholders.

Section.11 Advance Notice of Director Nominations.

(a) Nomination of Persons for Elections as Directors.

(i) Unless otherwise required by applicable law, the Certificate of Incorporation or any instrument of designation of any series of preferred stock of the Corporation with respect to the right of holders of preferred stock of the Corporation, only persons who are nominated in accordance with the following procedures shall be eligible for election as directors of the Corporation. Nominations of persons for election to the Board of Directors may be made at any annual meeting of stockholders of the Corporation or at any special meeting of stockholders of the Corporation called for the purpose of electing directors and must be:

(A) expressly specified in the notice of meeting (or any supplement or amendment thereto) given by or at the direction of the Board of Directors;

(B) otherwise made by or at the direction of the Board of Directors; or

(C) otherwise properly made by any stockholder of the Corporation who (i) is a stockholder of record at the time of giving of notice provided for in this Bylaw, on the record date for the meeting and at the time of the meeting (ii) is entitled to vote at the meeting and (iii) complies with the notice procedures set forth in this Bylaw as to such nomination.

(b) Timely Notice of Nomination.

(i) For a nomination to be properly made by a stockholder pursuant to Section 11(a)(i)(C) of this Article II, the stockholder must, in addition to any other applicable requirements, have given timely

notice thereof in writing to the Secretary. To be timely, a stockholder’s notice must be received by the Secretary at the principal executive offices of the Corporation by the close of business:

(A) in the case of an annual meeting, no fewer than ninety (90) nor more than one hundred twenty (120) days prior to the first anniversary of the preceding year’s annual meeting; provided, however, that in the event that no annual meeting was held in the previous year or the annual meeting is called for a date that is not within thirty (30) days before or sixty (60) days after such anniversary date, to be timely a stockholder’s notice must be received by the Secretary by the close of business on the tenth (10th) day following the day on which a public announcement (as defined below) with respect to the date of such meeting is first made by the Corporation; and

(B) in the case of a special meeting called for the purpose of electing directors, no fewer than ninety (90) nor more than one hundred twenty (120) days prior to the date of such meeting; provided, however, that if the first public announcement of the date of such special meeting is less than one hundred (100) days prior to the date of such special meeting, to be timely a stockholder’s notice must be received by the Secretary by the close of business on the tenth (10th) day following the day on which a public announcement with respect to the date of such meeting is first made by the Corporation.

In no event shall any adjournment or postponement of a meeting or the announcement thereof commence a new time period (or extend any time period) for the giving of a stockholder’s notice as described above. Notwithstanding the foregoing, in the event that the number of directors to be elected to the Board of Directors at any annual meeting is increased and the first public announcement of such increase is less than one hundred (100) days prior to the first anniversary of the preceding year’s annual meeting, a stockholder’s notice required by this Bylaw shall also be considered timely, but only with respect to nominees for any new positions created by such increase, if it shall be received by the Secretary at the principal executive offices of the Corporation by the close of business on the tenth (10th) day following the day on which a public announcement with respect to such elections is first made by the Corporation.

(i) To be in proper form, a stockholder’s notice to the Secretary given pursuant to Section 11(a)(i)(C) of this Article II must set forth:

(A) as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the nomination is made, the name and address of such stockholder, as they appear on the Corporation’s books, and of such beneficial owner;

(B) as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the nomination is made, and including any interests described below held by any member of such stockholder’s or beneficial owner’s immediate family sharing the same household, as of the date of such stockholder’s notice (which information shall be confirmed or updated, if necessary, by such stockholder and beneficial owner not later than ten (10) days after the record date for the meeting to disclose such ownership as of the record date) set forth: (i) the class or series and number of shares of capital stock of the Corporation which are, directly or indirectly, beneficially owned (as defined below) and owned of record by such stockholder and beneficial owner, (ii) the class or series, if any, and number of options, warrants, convertible securities, stock appreciation rights or similar rights with an exercise or conversion privilege or a settlement payment or mechanism at a price related to any class or series of shares or other securities of the Corporation or with a value derived in whole or in part from the value of any class or series of shares or other securities of the Corporation, whether or not such instrument or right shall be subject to settlement in the underlying class or series of shares or other securities of the Corporation (each, a “Derivative Security”), which are, directly or indirectly, beneficially owned by such stockholder and beneficial owner, (iii) a description of any other direct or indirect opportunity to profit or share in any profit (including any performance-based fees) derived from any increase or decrease in the value of shares or other securities of the Corporation, (iv) any proxy, contract, arrangement, understanding, or relationship pursuant to which such stockholder or beneficial owner has a right to vote any shares or other securities of the Corporation, (v) any rights to dividends on the shares of the Corporation owned beneficially by such stockholder or such beneficial owner that are separated or separable from the underlying shares of the Corporation, (vi) any proportionate interest in shares of the Corporation or Derivative Securities held, directly or indirectly, by a general or limited partnership in which such stockholder or beneficial owner is a general partner or, directly or indirectly, beneficially owns an interest in a general partner, if any, and (vii) a description

of all agreements, arrangements and understandings between such stockholder or beneficial owner and any other person(s) (including their name(s)) in connection with or related to the ownership or voting of capital stock of the Corporation or Derivative Securities;

(C) as to each person whom the stockholder proposes to nominate for election or reelection to the Board of Directors, (i) all information relating to such person that would be required to be disclosed in a proxy statement or other filings required to be made in connection with solicitations of proxies for election of directors pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and the rules and regulations promulgated thereunder (including such person’s written consent to being named in the proxy statement as a nominee and to serving as a director if elected), (ii) a description of all direct and indirect compensation and other material agreements, arrangements and understandings during the past three years, and any other material relationships, between or among such stockholder and beneficial owner, if any, and their respective affiliates and associates, or others acting in concert therewith, on the one hand, and each proposed nominee and his or her respective affiliates and associates, or others acting in concert therewith, on the other hand, including all information that would be required to be disclosed pursuant to Rule 404 promulgated under Regulation S-K if the stockholder making the nomination and any beneficial owner on whose behalf the nomination is made, or any affiliate or associate thereof or person acting in concert therewith, were the “registrant” for purposes of such rule and the nominee were a director or executive officer of such registrant, and (iii) a completed and signed questionnaire, representation and agreement required by Section 11(d) of this Article II;

(D) as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the nomination is made, (i) a statement as to whether either such stockholder or beneficial owner intends to deliver a proxy statement and form of proxy to holders of at least the percentage of the Corporation’s voting shares required under applicable law to elect such stockholder’s nominees and/or otherwise to solicit proxies from stockholders in support of such nomination, and (ii) any other information relating to such stockholder or beneficial owner that would be required to be disclosed in a proxy statement or other filings required

to be made in connection with solicitations of proxies for the election of directors in a contested election pursuant to Section 14 of the Exchange Act and the rules and regulations promulgated thereunder; and

(E) a representation that the stockholder is a holder of record of shares of the Corporation entitled to vote at such meeting and intends to appear in person or by proxy at the meeting to propose such nomination.

(ii) The Corporation may require any proposed nominee to furnish such other information as may reasonably be required by the Corporation to determine the eligibility of such proposed nominee to serve either as a director of the Corporation or as an independent director of the Corporation, or that could be material to a reasonable stockholder’s understanding of the qualifications and/or independence, or lack thereof, of such nominee.

(d) Submission of Questionnaire, Representation and Agreement. To be eligible to be a nominee for election or reelection as a director of the Corporation, a person must deliver (in accordance with the time periods prescribed for delivery of notice under Section 11(b) of this Article II) to the Secretary at the principal executive offices of the Corporation a written questionnaire with respect to the background and qualification of such person and the background of any other person or entity on whose behalf the nomination is being made (which questionnaire shall be provided by the Secretary upon written request) and a written representation and agreement (in the form provided by the Secretary upon written request) that such person (i) is not and will not become a party to (A) any agreement, arrangement or understanding with, and has not given any commitment or assurance to, any person or entity as to how such person, if elected as a director of the Corporation, will act or vote on any issue or question (a “Voting Commitment”) that has not been disclosed to the Corporation or (B) any Voting Commitment that could limit or interfere with such person’s ability to comply, if elected as a director of the Corporation, with such person’s fiduciary duties under applicable law, (ii) is not and will not become a party to any agreement, arrangement or understanding with any person or entity other than the Corporation with respect to any direct or indirect compensation, reimbursement or indemnification in connection with service or action as a director that has not been disclosed therein and (iii) would be in compliance, and if elected as a director of the Corporation will comply, with all applicable publicly disclosed corporate governance, conflict of interest, confidentiality and stock ownership and trading policies and guidelines of the Corporation.

(e) Additional Information. The Corporation may require any proposed nominee to consent to a background check (which consent shall not be

unreasonably withheld) and to furnish such other information as may reasonably be required by the Corporation to determine the eligibility of such proposed nominee to serve either as a director of the Corporation or as an independent director of the Corporation, or that could be material to a reasonable stockholder’s understanding of the qualifications and/or independence, or lack thereof, of such nominee.

Section.12 Advance Notice of Stockholder Business.

(a) Bringing Business Before a Meeting.

(i) Only such business shall be conducted before a meeting of stockholders as shall have been properly brought before such meeting. To be properly brought before a meeting of stockholders, business (other than the nomination of directors) must be:

(A) expressly specified in the notice of meeting (or any supplement or amendment thereto) given by or at the direction of the Board of Directors;

(B) otherwise properly brought before the meeting by or at the direction of the Board of Directors; or

(C) otherwise properly brought before the meeting by any stockholder of the Corporation who (i) is a stockholder of record at the time of giving of notice provided for in this Bylaw, on the record date for the meeting and at the time of the meeting, (ii) is entitled to vote at the meeting and (iii) complies with the notice procedures set forth in this Bylaw as to such business.

(b) Timely Notice of Business.

(i) For any business to be properly brought before a meeting by a stockholder pursuant to Section 12(a)(i)(C) of this Article II, the stockholder must, in addition to any other applicable requirements, have given timely notice thereof in writing to the Secretary and any such proposed business must be a proper matter for stockholder action. To be timely, a stockholder’s notice must be received by the Secretary at the principal executive offices of the Corporation by the close of business:

(A) in the case of an annual meeting, by the deadline set forth in Section 11(b)(i)(A) of this Article II; and

(B) in the case of a special meeting, by the deadline set forth in Section 11(b)(ii)(B) of this Article II.

(i) To be in proper form, a stockholder’s notice to the Secretary given pursuant to Section 12(a)(i)(C) of this Article II must set forth, as to each matter such stockholder proposes to bring before any meeting of stockholders:

(A) as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the proposal is made, the information called for by Section 11(c)(i)(A) of this Article II and Section 11(c)(ii)(B) of this Article II;

(B) a brief description of (i) the business desired to be brought before such meeting, (ii) the reasons for conducting such business at the meeting and (iii) any material interest of such stockholder or beneficial owner in such business, including a description of all agreements, arrangements and understandings between such stockholder or beneficial owner and any other person(s) (including the name(s) of such other person(s)) in connection with or related to the proposal of such business by the stockholder;

(C) as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the nomination is made, (i) a statement as to whether either such stockholder or beneficial owner intends to deliver a proxy statement and form of proxy to holders of at least the percentage of the Corporation’s voting shares required under applicable law to approve the proposal and/or otherwise to solicit proxies from stockholders in support of such proposal and (ii) any other information relating to such stockholder or beneficial owner that would be required to be disclosed in a proxy statement or other filings required to be made in connection with solicitations of proxies for the election of directors in a contested election pursuant to Section 14 of the Exchange Act and the rules and regulations promulgated thereunder; and

(D) a representation that the stockholder is a holder of record of shares of the Corporation entitled to vote at such meeting and intends to appear in person or by proxy at the meeting to propose such business.

Section.13 General.

(a) Authority of Chairman. Except as otherwise provided by applicable law, the Certificate of Incorporation or these Bylaws, the Chairman of the meeting shall have the power and duty to determine whether any nomination or other business proposed to be brought before the meeting was made or brought in accordance with the procedures set forth in these Bylaws and, if any nomination or other business is not made or brought in compliance with these Bylaws, to declare that such nomination or proposal of other business be disregarded and not acted upon.

(b) Compliance with Exchange Act. Notwithstanding the foregoing provisions of these Bylaws, a stockholder shall also comply with all applicable requirements of the Exchange Act and the rules and regulations promulgated thereunder with respect to the matters set forth in these Bylaws; provided, however, that any references in these Bylaws to the Exchange Act or the rules and regulations promulgated thereunder are not intended to and shall not limit the requirements applicable to any nomination or other business to be considered pursuant to Section 11(a)(i)(C) of this Article II or Section 12(a)(i)(C) of this Article II.

(c) Affect on Other Rights. Nothing in these Bylaws shall be deemed to affect any rights (i) of stockholders to request inclusion of proposals in the Corporation’s proxy statement pursuant to Rule 14a-8 under the Exchange Act or (ii) of the holders of any series of preferred stock of the Corporation if and to the extent provided for under applicable law, the Certificate of Incorporation or these Bylaws.

(d) Exclusivity. For the avoidance of doubt, (i) Section 11(a)(i)(C) of this Article II shall be the exclusive means for a stockholder to nominate persons for election as directors of the Corporation and (ii) Section 12(a)(i)(C) of this Article II shall be the exclusive means for a stockholder to submit business (other than (A) matters properly brought under Rule 14a-8 under the Exchange Act and included in the Corporation’s notice of meeting and (B) nominations of persons for election to the Board of Directors, which shall be governed by Section 11(a)(i)(C) of this Article II) for consideration by the stockholders at a meeting of stockholders of the Corporation.

(e) Certain Definitions. For purposes of these Bylaws:

(i) “Beneficially owned” (and phrases of similar import), when referring to shares owned by a person, shall mean all shares which such person is deemed to beneficially own pursuant to Rules 13d-3 and 13d-5 under the Exchange Act and the rules and regulations promulgated thereunder, including shares which are beneficially owned, directly or indirectly, by any other person with which such

person has any agreement, arrangement or understanding for the purpose of acquiring, holding, voting or disposing of any shares of the capital stock of the Corporation.

(ii) “Publicly announced” and “public announcement” shall mean disclosure by the Corporation in a press release reported by a national news service or in a document publicly filed by the Corporation with the Securities and Exchange Commission pursuant to Section 13, 14 or 15(d) of the Exchange Act.

Section.14 Fixing a Record Date for Stockholder Meetings. In order that the Corporation may determine the stockholders entitled to notice of or to vote at any meeting of stockholders or any adjournment thereof, the Board of Directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted by the Board of Directors, and which record date shall not be more than sixty (60) nor less than ten (10) days before the date of such meeting. If no record date is fixed by the Board of Directors, the record date for determining stockholders entitled to notice of or to vote at a meeting of stockholders shall be the close of business on the next day preceding the day on which notice is first given, or, if notice is waived, at the close of business on the day next preceding the day on which the meeting is held. A determination of stockholders of record entitled to notice of or to vote at a meeting of stockholders shall apply to any adjournment of the meeting; provided, however, that the Board of Directors may fix a new record date for the adjourned meeting.

Section.15 Fixing a Record Date for Other Purposes. In order that the Corporation may determine the stockholders entitled to receive payment of any dividend or other distribution or allotment or any rights or the stockholders entitled to exercise any rights in respect of any change, conversion or exchange of stock, or for the purposes of any other lawful action, the Board of Directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted, and which record date shall be not more than sixty (60) days prior to such action. If no record date is fixed, the record date for determining stockholders for any such purpose shall be at the close of business on the day on which the Board of Directors adopts the resolution relating thereto.

ARTICLE III

DIRECTORS

Section.1 General Powers. The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors. The Board of Directors may exercise all such authority and powers of the Corporation and do all such lawful acts and things as are not by statute or the Certificate of Incorporation directed or required to be exercised or done by the stockholders.

Section.2 Annual Meetings. The annual meeting of the Board of Directors shall be held without other notice than this Bylaw immediately after, and at the same place as, the annual meeting of stockholders.

Section.3 Regular Meetings and Special Meetings. Regular meetings, other than the annual meeting, of the Board of Directors may be held without notice at such time and at such place as shall from time to time be determined by resolution of the Board of Directors. Special meetings of the Board of Directors may be called by the chairman of the board, the chief executive officer (if the chief executive officer is a director) or upon the written request of at least a majority of the directors then in office.

Section.4 Notice of Meetings. Notice of regular meetings of the Board of Directors need not be given except as otherwise required by law or these Bylaws. Notice of each special meeting of the Board of Directors, and of each regular and annual meeting of the Board of Directors for which notice shall be required, shall be given by the secretary as hereinafter provided in this Section 4, in which notice shall be stated the time and place of the meeting. Except as otherwise required by these Bylaws, such notice need not state the purposes of such meeting. Notice of any special meeting, and of any regular or annual meeting for which notice is required, shall be given to each director at least (a) twenty-four (24) hours before the meeting if delivered by telephone or personally or if sent by telex, telecopy, email or similar means or (b) five (5) days before the meeting if delivered by mail to the director’s residence or usual place of business. Such notice shall be deemed to be delivered when deposited in the United States mail so addressed, with postage prepaid, or when transmitted if sent by telex, telecopy, email or similar means. Neither the business to be transacted at, nor the purpose of, any special meeting of the Board of Directors need be specified in the notice or waiver of notice of such meeting. Any director may waive notice of any meeting by a writing signed by the director entitled to the notice and filed with the minutes or corporate records.

Section.5 Waiver of Notice and Presumption of Assent. Any member of the Board of Directors or any committee thereof who is present at a meeting shall be conclusively presumed to have waived notice of such meeting except when such member attends for the express purpose of objecting at the beginning of the meeting to the transaction of any business because the meeting is not lawfully called or convened. Such member shall be conclusively presumed to have assented to any action taken unless his or her dissent shall be entered in the minutes of the meeting or unless his or her written dissent to such action shall be filed with the person acting as the secretary of the meeting before the adjournment thereof or shall be forwarded by registered mail to the secretary of the Corporation immediately after the adjournment of the meeting. Such right to dissent shall not apply to any member who voted in favor of such action.

Section.6 Chairman of the Board, Quorum, Required Vote and Adjournment. The Board of Directors shall elect, by the affirmative vote of a majority of the total number of directors then in office, a chairman of the board, who shall preside at all meetings of the stockholders and Board of Directors at which he or she is present and shall have such powers and perform such duties as the Board of Directors may from time to time prescribe. If the chairman of the board is not present at a meeting of the stockholders or the Board of Directors, the chief executive officer (if the chief executive officer is a director and is not also the chairman of the board) shall preside at such meeting, and, if the chief executive officer is not present at such

meeting, a majority of the directors present at such meeting shall elect one of their members to so preside. A majority of the total number of directors then in office shall constitute a quorum for the transaction of business. Unless by express provision of an applicable law, the Certificate of Incorporation or these Bylaws a different vote is required, the vote of a majority of directors present at a meeting at which a quorum is present shall be the act of the Board of Directors. If a quorum shall not be present at any meeting of the Board of Directors, the directors present thereat may adjourn the meeting from time to time, without notice other than announcement at the meeting, until a quorum shall be present.

Section.7 Committees. The Board of Directors (i) may, by resolution passed by a majority of the entire Board of Directors, designate one or more committees, including an executive committee, consisting of one or more of the directors of the Corporation, and (ii) shall during such period of time as any securities of the Corporation are listed on the Nasdaq Global Market (the “Nasdaq”), by resolution passed by a majority of the entire Board of Directors, designate all committees required by the rules and regulations of the Nasdaq. The Board of Directors may designate one or more directors as alternate members of any committee, who may replace any absent or disqualified member at any meeting of the committee. Except to the extent restricted by applicable law or the Certificate of Incorporation, each such committee, to the extent provided in the resolution creating it, shall have and may exercise all the powers and authority of the Board of Directors. Each such committee shall serve at the pleasure of the Board of Directors as may be determined from time to time by resolution adopted by the Board of Directors or as required by the rules and regulations of the Nasdaq, if applicable. Each committee shall keep regular minutes of its meetings and report the same to the Board of Directors upon request.

Section.8 Committee Rules. Each committee of the Board of Directors may fix its own rules of procedure and shall hold its meetings as provided by such rules, except as may otherwise be provided by a resolution of the Board of Directors designating such committee. Unless otherwise provided in such a resolution, the presence of at least a majority of the members of the committee shall be necessary to constitute a quorum. Unless otherwise provided in such a resolution, in the event that a member and that member’s alternate, if alternates are designated by the Board of Directors, of such committee is or are absent or disqualified, the member or members thereof present at any meeting and not disqualified from voting, whether or not such member or members constitute a quorum, may unanimously appoint another member of the Board of Directors to act at the meeting in place of any such absent or disqualified member.

Section.9 Communications Equipment. Members of the Board of Directors or any committee thereof may participate in and act at any meeting of such board or committee through the use of a conference telephone or other communications equipment by means of which all persons participating in the meeting can hear and speak with each other, and participation in the meeting pursuant to this section shall constitute presence in person at the meeting.

Section.10 Action by Written Consent. Unless otherwise restricted by the Certificate of Incorporation, any action required or permitted to be taken at any meeting of the Board of Directors, or of any committee thereof, may be taken without a meeting if all members of such board or committee, as the case may be, consent thereto in writing, and the writing or writings are filed with the minutes of proceedings of the board or committee.

Section.11 Compensation. The Board of Directors (or the Compensation Committee if set forth in its charter) shall have the authority to fix the compensation, including fees and reimbursement of expenses, of directors for services to the Corporation in any capacity.

Section.12 Reliance on Books and Records. A member of the Board of Directors, or a member of any committee designated by the Board of Directors shall, in the performance of such person’s duties, be fully protected in relying in good faith upon records of the Corporation and upon such information, opinions, reports or statements presented to the Corporation by any of the Corporation’s officers or employees, or committees of the Board of Directors, or by any other person as to matters the member reasonably believes are within such other person’s professional or expert competence and who has been selected with reasonable care by or on behalf of the Corporation.

ARTICLE IV

OFFICERS

Section.1 Number. The officers of the Corporation shall be elected by the Board of Directors and shall consist of a chairman of the board, a chief executive officer, one or more vice-presidents, a secretary, a chief financial officer and such other officers and assistant officers as may be deemed necessary or desirable by the Board of Directors. Any number of offices may be held by the same person, except that the chief executive officer shall not also hold the office of secretary. In its discretion, the Board of Directors may choose not to fill any office for any period as it may deem advisable, except that the offices of chief executive officer and secretary shall be filled as expeditiously as possible.

Section.2 Election and Term of Office. The officers of the Corporation shall be elected annually by the Board of Directors at its first meeting held after each annual meeting of stockholders or as soon thereafter as convenient. Vacancies may be filled or new offices created and filled at any meeting of the Board of Directors. Each officer shall hold office until a successor is duly elected and qualified or until his or her earlier death, resignation or removal as hereinafter provided.

Section.3 Removal. Any officer or agent elected by the Board of Directors may be removed by the Board of Directors at its discretion, but such removal shall be without prejudice to the contract rights, if any, of the person so removed.

Section.4 Vacancies. Any vacancy occurring in any office because of death, resignation, removal, disqualification or otherwise may be filled by the Board of Directors.

Section.5 Compensation. Compensation of all executive officers shall be approved by the Board of Directors (or the Compensation Committee if set forth in its charter), and no officer shall be prevented from receiving such compensation by virtue of his or her also being a director of the Corporation; provided however, that compensation of some or all executive officers may be determined by a committee established for that purpose if so authorized by the Board of Directors or as required by applicable law or regulation, including any exchange or market upon which the Corporation’s securities are then listed for trading or quotation.

Section.6 Chairman of the Board. The chairman of the board shall preside at all meetings of the stockholders and of the Board of Directors and shall have such other powers and perform such other duties as may be prescribed to him or her by the Board of Directors or provided in these Bylaws.

Section.7 Chief Executive Officer. The chief executive officer shall have the powers and perform the duties incident to that position. Subject to the powers of the Board of Directors and the chairman of the board, the chief executive officer shall be in the general and active charge of the entire business and affairs of the Corporation, and shall be its chief policy making officer. The chief executive officer shall have such other powers and perform such other duties as may be prescribed by the Board of Directors or provided in these Bylaws. The chief executive officer is authorized to execute bonds, mortgages and other contracts requiring a seal, under the seal of the Corporation, except where required or permitted by law to be otherwise signed and executed and except where the signing and execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent of the Corporation. The chief executive officer shall perform all the duties and responsibilities and exercise all the powers of the president.

Section.8 The Chief Financial Officer. The chief financial officer shall have the custody of the corporate funds and securities; shall keep full and accurate all books and accounts of the Corporation as shall be necessary or desirable in accordance with applicable law or generally accepted accounting principles; shall deposit all monies and other valuable effects in the name and to the credit of the Corporation as may be ordered by the chairman of the board or the Board of Directors; shall cause the funds of the Corporation to be disbursed when such disbursements have been duly authorized, taking proper vouchers for such disbursements; and shall render to the Board of Directors, at its regular meeting or when the Board of Directors so requires, an account of the Corporation; shall have such powers and perform such duties as the Board of Directors, the chairman of the board, the chief executive officer or these Bylaws may, from time to time, prescribe. The chief financial officer is authorized to execute bonds, mortgages and other contracts requiring a seal, under the seal of the Corporation, except where required or permitted by law to be otherwise signed and executed and except where the signing and execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent of the Corporation.

Section.9 Vice-Presidents. The vice-president, or if there shall be more than one, the vice-presidents in the order determined by the Board of Directors or the chairman of the board, shall, in the absence or disability of the chief executive officer, act with all of the powers and be subject to all the restrictions of the chief executive officer. The vice-presidents shall also perform such other duties and have such other powers as the Board of Directors, the chairman of the board, the chief executive officer, the chief financial officer or these Bylaws may, from time to time, prescribe. The vice-presidents may also be designated as executive vice-presidents or senior vice-presidents, as the Board of Directors may from time to time prescribe.

Section.10 The Secretary and Assistant Secretaries. The secretary shall attend all meetings of the Board of Directors (other than executive sessions thereof) and all meetings of the stockholders and record all the proceedings of the meetings in a book or books to be kept for that purpose or shall ensure that his or her designee attends each such meeting to act in such capacity. Under the chairman of the board’s supervision, the secretary shall give, or cause to be given, all

notices required to be given by these Bylaws or by law; shall have such powers and perform such duties as the Board of Directors, the chairman of the board, the chief executive officer or these Bylaws may, from time to time, prescribe; and shall have custody of the corporate seal of the Corporation. The secretary, or an assistant secretary, shall have authority to affix the corporate seal to any instrument requiring it and when so affixed, it may be attested by his or her signature or by the signature of such assistant secretary. The Board of Directors may give general authority to any other officer to affix the seal of the Corporation and to attest the affixing by his or her signature. The assistant secretary, or if there be more than one, any of the assistant secretaries, shall in the absence or disability of the secretary, perform the duties and exercise the powers of the secretary and shall perform such other duties and have such other powers as the Board of Directors, the chairman of the board, the chief executive officer or secretary may, from time to time, prescribe.

Section.11 Other Officers, Assistant Officers and Agents. Officers, assistant officers and agents, if any, other than those whose duties are provided for in these Bylaws, shall have such authority and perform such duties as may from time to time be prescribed by resolution of the Board of Directors.

Section.12 Absence or Disability of Officers. In the case of the absence or disability of any officer of the Corporation and of any person hereby authorized to act in such officer’s place during such officer’s absence or disability, the Board of Directors may by resolution delegate the powers and duties of such officer to any other officer or to any director, or to any other person selected by it.

ARTICLE V

CERTIFICATES OF STOCK

Section.1 Form. The shares of stock of the Corporation may be represented by certificates or may be in uncertificated form. Every holder of stock represented by a certificate and, upon request, every holder of uncertificated shares shall be entitled to have a certificate, signed by, or in the name of the Corporation by (i) the chairman of the board, the chief executive officer, the president or a vice president and the chief financial officer, the treasurer or an assistant treasurer or the secretary or an assistant secretary of the Corporation, or (ii) any two officers designated by the Board of Directors, certifying the number of shares owned by such holder in the Corporation. If such a certificate is countersigned (i) by a transfer agent or an assistant transfer agent other than the Corporation or its employee or (ii) by a registrar, other than the Corporation or its employee, the signature of any such chairman of the board, chief executive officer, president, vice president, chief financial officer, treasurer, assistant treasurer, secretary or assistant secretary may be facsimiles. In case any officer or officers who have signed, or whose facsimile signature or signatures have been used on, any such certificate or certificates shall cease to be such officer or officers of the Corporation whether because of death, resignation or otherwise before such certificate or certificates have been delivered by the Corporation, such certificate or certificates may nevertheless be issued and delivered as though the person or persons who signed such certificate or certificates or whose facsimile signature or signatures have been used thereon had not ceased to be such officer or officers of the Corporation. All

certificates for shares shall be consecutively numbered or otherwise identified. The name of the person to whom the shares represented thereby are issued, with the number of shares and date of issue, shall be entered on the books of the Corporation. Shares of stock of the Corporation represented by a certificate shall only be transferred on the books of the Corporation by the holder of record thereof or by such holder’s attorney duly authorized in writing, upon surrender to the Corporation of the certificate or certificates for such shares endorsed by the appropriate person or persons, with such evidence of the authenticity of such endorsement, transfer, authorization and other matters as the Corporation may reasonably require, and accompanied by all necessary stock transfer stamps. In that event, it shall be the duty of the Corporation to issue a new certificate to the person entitled thereto, cancel the old certificate or certificates and record the transaction on its books. Uncertificated shares of the Corporation shall only be transferred on the books of the Corporation by the holder of record thereof or by such holder’s attorney duly authorized in writing, upon presentment of proper evidence of succession, assignation or authority to transfer in accordance with the customary procedures for transferring shares in uncertificated form. The Board of Directors may appoint a bank or trust company organized under the laws of the United States or any state thereof to act as its transfer agent or registrar, or both in connection with the transfer of any class or series of securities of the Corporation. The Board of Directors may make such additional rules and regulations, not inconsistent with these Bylaws, as it may deem expedient concerning the issue, transfer and registration of certificates for shares of stock of the Corporation.

Section.2 Lost Certificates. The Corporation may issue or direct a new certificate or certificates to be issued in place of any certificate or certificates previously issued by the Corporation alleged to have been lost, stolen or destroyed, upon the making of an affidavit of that fact by the person claiming the certificate of stock to be lost, stolen or destroyed. When authorizing such issue of a new certificate or certificates, the Corporation may, in its discretion and as a condition precedent to the issuance thereof, require the owner of such lost, stolen or destroyed certificate or certificates, or his or her legal representative, to give the Corporation a bond sufficient to indemnify the Corporation against any claim that may be made against the Corporation on account of the loss, theft or destruction of any such certificate or the issuance of such new certificate.

Section.3 Registered Stockholders. Prior to the surrender to the Corporation of the certificate or certificates for a share or shares of stock with a request to record the transfer of such share or shares, the Corporation may treat the registered owner as the person entitled to receive dividends, to vote, to receive notifications and otherwise to exercise all the rights and powers of an owner. The Corporation shall not be bound to recognize any equitable or other claim to or interest in such share or shares on the part of any other person, whether or not it shall have express or other notice thereof.

ARTICLE VI

GENERAL PROVISIONS

Section.1 Dividends. Dividends upon the capital stock of the Corporation, subject to the provisions of the Certificate of Incorporation, if any, may be declared by the Board of Directors at any regular or special meeting, in accordance with applicable law. Dividends may be

paid in cash, in property or in shares of the capital stock, subject to the provisions of applicable law and the Certificate of Incorporation. Before payment of any dividend, there may be set aside out of any funds of the Corporation available for dividends such sum or sums as the directors from time to time, in their absolute discretion, think proper as a reserve or reserves to meet contingencies, or for equalizing dividends, or for repairing or maintaining any property of the Corporation, or any other purpose and the directors may modify or abolish any such reserve in the manner in which it was created.

Section.2 Checks, Notes, Drafts, Etc. All checks, notes, drafts or other orders for the payment of money of the Corporation shall be signed, endorsed or accepted in the name of the Corporation by such officer, officers, person or persons as from time to time may be designated by the Board of Directors or by an officer or officers authorized by the Board of Directors to make such designation.

Section.3 Contracts. In addition to the powers otherwise granted to officers pursuant to Article IV hereof, the Board of Directors may authorize any officer or officers, or any agent or agents, of the Corporation to enter into any contract or to execute and deliver any instrument in the name of and on behalf of the Corporation, and such authority may be general or confined to specific instances.

Section.4 Loans. Subject to compliance with applicable law (including the Sarbanes-Oxley Act of 2002, as amended), the Corporation may lend money to, or guarantee any obligation of, or otherwise assist any officer or other employee of the Corporation or of its subsidiaries, including any officer or employee who is a director of the Corporation or its subsidiaries, whenever, in the judgment of the directors, such loan, guaranty or assistance may reasonably be expected to benefit the Corporation. The loan, guaranty or other assistance may be with or without interest, and may be unsecured, or secured in such manner as the Board of Directors shall approve, including, without limitation, a pledge of shares of stock of the Corporation. Nothing in this section shall be deemed to deny, limit or restrict the powers of guaranty or warranty of the Corporation at common law or under any statute.

Section.5 Fiscal Year. The fiscal year of the Corporation shall end on December 31st of each year and may thereafter be changed by resolution of the Board of Directors.

Section.6 Corporate Seal. The Board of Directors may provide a corporate seal which shall be in the form of a circle and shall have inscribed thereon the name of the Corporation and the words “Corporate Seal, Delaware.” The seal may be used by causing it or a facsimile thereof to be impressed or affixed or reproduced or otherwise. Notwithstanding the foregoing, no seal shall be required by virtue of this Section.

Section.7 Voting Securities Owned By Corporation. Voting securities in any other Corporation held by the Corporation shall be voted by the chief executive officer, unless the Board of Directors specifically confers authority to vote with respect thereto, which authority may be general or confined to specific instances, upon some other person or officer. Any person authorized to vote securities shall have the power to appoint proxies, with general power of substitution.

Section.8 Inspection of Books and Records. The Board of Directors shall have power from time to time to determine to what extent and at what times and places and under what conditions and regulations the accounts and books of the Corporation, or any of them, shall be open to the inspection of the stockholders; and no stockholder shall have any right to inspect any account or book or document of the Corporation, except as conferred by the laws of the State of Delaware, unless and until authorized so to do by resolution of the Board of Directors or of the stockholders of the Corporation.

Section.9 Section Headings. Section headings in these Bylaws are for convenience of reference only and shall not be given any substantive effect in limiting or otherwise construing any provision herein.

Section.10 Inconsistent Provisions. In the event that any provision of these Bylaws is or becomes inconsistent with any provision of the Certificate of Incorporation, the General Corporation Law of the State of Delaware or any other applicable law, the provision of these Bylaws shall not be given any effect to the extent of such inconsistency but shall otherwise be given full force and effect.

ARTICLE VII

AMENDMENTS

These Bylaws may be amended, altered, changed or repealed or new Bylaws adopted only in accordance with Article Six Section 6 and Article Eleven of the Amended and Restated Certificate of Incorporation.

Number		Title

3.2		Amended and Restated By-Laws, as amended

	GT ADVANCED TECHNOLOGIES INC.


	/s/ HOIL KIM
Date: April 20, 2012	Hoil Kim
	Vice President, Chief Administrative Officer and General Counsel