Exhibit 3.1

AMENDED AND RESTATED

ARTICLES OF INCORPORATION

OF

KEY TECHNOLOGY, INC.

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ARTICLE I.

The name of the corporation (the “Corporation”) is:

Key Technology, Inc.

ARTICLE II.

The name and address of the registered agent of the Corporation is TT Administrative Services, LLC, 888 SW Fifth Avenue, Suite 1600, Portland, OR 97204.

ARTICLE III.

The nature of the business or purposes to be conducted or promoted by the Corporation is to engage in any lawful act or activity.

ARTICLE IV.

The total number of shares of stock which the Corporation shall have authority to issue is 1,000 shares of common stock, par value $0.01 per share (the “Common Stock”). Each holder of Common Stock shall be entitled to one vote for each share held.

ARTICLE V.

In furtherance and not in limitation of the powers conferred by statute, the by-laws of the Corporation may be made, altered, amended or repealed by the stockholders of the Corporation or by a majority of the entire Board of Directors.

ARTICLE VI.

Elections of directors need not be by written ballot.

ARTICLE VII.

(a) The Corporation shall indemnify to the fullest extent permitted under and in accordance with the laws of the State of Delaware and the laws of the State of Oregon any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the Corporation) by reason of the fact that the person is or was a director, officer, employee or agent of the Corporation, or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees),

judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the Corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe the person’s conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in good faith and in a manner which the person reasonably believed to be in or not opposed to the best interests of the Corporation, and, with respect to any criminal action or proceeding, had reasonable cause to believe that the person’s conduct was unlawful.

(b) The Corporation shall indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the Corporation to procure a judgment in its favor by reason of the fact that the person is or was a director, officer, employee or agent of the Corporation, or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the Corporation and except that no such indemnification shall be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the Corporation unless and only to the extent that the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity by the Corporation for such expenses which such court shall deem proper.

(c) Expenses incurred in defending a civil or criminal action, suit or proceeding shall (in the case of any action, suit or proceeding against a director of the Corporation) or may (in the case of any action, suit or proceeding against an officer, trustee, employee or agent of the Corporation) be paid by the Corporation in advance of the final disposition of such action, suit or proceeding as authorized by the Board of Directors upon receipt of an undertaking by or on behalf of a person so indemnified to repay such amount if it shall ultimately be determined that he or she is not entitled to be indemnified by the Corporation as authorized in this Article VII.

(d) The indemnification and other rights set forth in this Article VII shall not be exclusive of any provisions with respect thereto in the by-laws of the Corporation or any other contract or agreement between the Corporation and any officer, director, employee or agent of the Corporation.

(e) Neither the amendment nor repeal of this Article VII, nor the adoption of any provision of this Certificate of Incorporation inconsistent with this Article VII, shall eliminate or reduce the effect of this Article VII in respect of any matter occurring before such amendment, repeal or adoption of an inconsistent provision or in respect of any cause of action, suit or claim relating to any such matter which would have given rise to a right of indemnification or right to the reimbursement of expenses pursuant to this Article VII if such provision had not been so amended or repealed or if a provision inconsistent therewith had not been so adopted.

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(f) For purposes of this Article VII, references to “the Corporation” shall include, in addition to the resulting corporation, any constituent corporation (including any constituent of a constituent) absorbed in a consolidation or merger which, if its separate existence had continued, would have had power and authority to indemnify its directors, officers, and employees or agents, so that any person who is or was a director, officer, employee or agent of such constituent corporation, or is or was serving at the request of such constituent corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, shall stand in the same position under this Article VII with respect to the resulting or surviving corporation as he or she would have with respect to such constituent corporation if its separate existence had continued.

ARTICLE VIII.

The Corporation hereby eliminates, to the fullest extent permitted by law the personal liability of any person who serves as a director of the Corporation to the Corporation and/or its stockholders for monetary damages for breach of fiduciary duty as a director; provided that this Article VIII shall not eliminate or limit the liability of a director: (i) for any breach of the director’s duty of loyalty to the Corporation or its stockholders; (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law; (iii) under Section 174 of the General Corporation Law of the State of Delaware (the “DGCL”) and Section 60.367 of the Oregon Business Corporation Act (the “OBCA”); or (iv) for any transaction from which the director derived an improper personal benefit; provided further, however, that if in the future the DGCL or the OBCA are amended or modified (including, but not limited to, Section 102(b)(7) of the DGCL or Section 60.047(2)(d) of the OBCA) to permit the elimination of the personal liability of a director of the Corporation to a greater extent than contemplated above, then the provisions of this Article VIII shall be deemed to be automatically amended to provide for the elimination of the personal liability of the directors of the Corporation to such greater extent. This Article VIII shall not eliminate or limit the liability of a director for any act or omission occurring prior to the date when this Article VIII becomes effective.

ARTICLE IX.

The name and address of an individual who has direct knowledge of the operations and business activities of the Company is:

Craig Reuther

3500 Lacey Road, Suite 290

Downers, IL 60515

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