Document:

Form of Stock Option Agreement

 EXHIBIT 10.2 
 NONSTATUTORY STOCK OPTION AGREEMENT 
 OMEGA PROTEIN CORPORATION 
 2006 INCENTIVE PLAN 
 This Stock Option
Agreement (the “Agreement”), is entered into as of February 3, 2009 between Omega Protein Corporation, a Nevada corporation (the “Company”), and
[                                        
                        ] (the “Optionee”). 
 WITNESSETH: 
 WHEREAS, the Company has adopted the Omega Protein Corporation
2006 Incentive Plan (the “Plan”) to encourage officers, employees, outside directors and consultants of the Company and its Subsidiaries to acquire or increase their ownership interest in the Company and to provide a means whereby they may
develop a sense of proprietorship and personal involvement in the development and financial success of the Company, and to encourage them to remain with and devote their best efforts to the business of the Company thereby advancing the interests of
the Company and its stockholders; and 
 WHEREAS, the Plan provides that such selected individuals may be granted a certain number of Options
(as defined in the Plan) to purchase shares of the Common Stock, par value $.0l per share (“Common Stock”), of the Company to provide them with an ownership interest in the growth of the Company; and 
 WHEREAS, the Optionee has been selected to receive such award; 
 NOW, THEREFORE, in consideration of the premises, the terms and conditions set forth herein, the mutual benefits to be gained by the performance thereof and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 
 1. Grant of Option. Pursuant to the Plan, the Company grants Optionee an option (the “Option” or “Stock Option”) to purchase              full
shares (the “Optioned Shares”) of Common Stock at an Option Price equal to $4.02 per share. The Date of Grant of this Stock Option is February 3, 2009. The “Option Period” shall commence on the Date of Grant and shall expire
on the date immediately preceding the tenth (10th) anniversary of the Date of Grant. The Stock Option is a Nonstatutory Stock Option.

 2. Subject to Plan. The Stock Option and its exercise are subject to the terms and conditions of the Plan, and the terms of the
Plan shall control to the extent not otherwise inconsistent with the provisions of this Agreement. The capitalized terms used herein that are defined in the Plan shall have the same meanings assigned to them in the Plan. The Stock Option is subject
to any rules promulgated pursuant to the Plan by the Committee. 
 3. Vesting: Time of Exercise. Except as specifically provided in
this Agreement and subject to certain restrictions and conditions set forth in the Plan, the Stock Option shall be vested and exercisable as follows (it being understood that the right to purchase Option Shares shall be cumulative so that the
Optionee may purchase on or after any such anniversary and 

 
during the remainder of the Option Period those quantifies of Option Shares which the Optionee was entitled to purchase but did not purchase during any
preceding period or periods): 
  

	 	a.	With respect to 33.3% of the total Optioned Shares, the Stock Option shall vest and become exercisable on the first anniversary of the Date of Grant provided the Optionee is
employed by (or, if the Optionee is a consultant or an Outside Director, is providing services to) the Company or a Subsidiary on that date. 

  

	 	b.	With respect to 33.3% of the total Optioned Shares, the Stock Option shall vest and become exercisable on the second anniversary of the Date of Grant provided the Optionee is
employed by (or, if the Optionee is a consultant or an Outside Director, is providing services to) the Company or a Subsidiary on that date. 

  

	 	c.	With respect to 33.3% of the total Optioned Shares, the Stock Option shall vest and become exercisable on the third anniversary of the Date of Grant provided the Optionee is
employed by (or, if the Optionee is a consultant or an Outside Director, is providing services to) the Company or a Subsidiary on that date. 

  

	 	d.	A Optionee shall become 100% vested in the total Optioned Shares hereunder on the day preceding an event which constitutes a Change in Control as defined in the Plan.

 4. Term; Forfeiture. In the event of Optionee’s
termination of employment with the Company and its Subsidiaries (whether voluntarily by the Optionee or involuntarily by the Company) (in either case, a “Termination of Employment”) for any reason other than for Cause or Optionee’s
death or disability, the Option outstanding on such date of Termination of Employment, to the extent vested on such date, may be exercised by Optionee (or, in the event of Optionee’s subsequent death, by Optionee’s Heir (as defined below))
until the expiration of the Option Period, but not thereafter. In no event shall the Option be exercisable after the tenth (10th) anniversary
of the Date of Grant. To the extent the Option is not vested on Optionee’s date of Termination of Employment, the Option shall automatically lapse and be canceled unexercised as of such date. 
 In the event that Optionee’s employment is terminated for Cause, any Option granted pursuant to this Agreement whether vested or unvested shall be
forfeited upon the date that the Optionee’s Termination of Employment. Termination for “Cause” shall mean (i) the Employee’s final conviction of a felony crime that enriched the Employee at the expense of the Company; or
(ii) the Employee has deliberately and intentionally refused to carry out his duties in gross dereliction of those duties and, after receiving written notice to such effect from the Company, has failed to cure the existing problem within five
(5) days. For purposes of determining whether Cause has occurred, no act or failure to act on the part of the Employee shall be considered “deliberate and intentional” unless it is taken or omitted to be taken by the Employee in bad
faith or without a reasonable belief by the Employee that the Employee’s act or omission was in the best interests of the Company. For the purposes the definition of Cause, the term “Company” includes Subsidiaries of the Company.

  

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 In the event of Optionee’s Termination of
Employment by reason of death or disability, as defined by the Committee in its sole discretion pursuant to the terms of the Plan, the Option shall be fully vested on such date of termination and may be exercised by Optionee or, in the event of
Optionee’s death, by the person to whom Optionee’s rights shall pass by will or the laws of descent and distribution (“Heir”), at any time within the twelve (12) month period beginning on Optionee’s Termination of
Employment, but not thereafter. However, in no event shall the Option be exercisable after the tenth (10th) anniversary of the Date of Grant.

 5. Who May Exercise. Subject to the terms and conditions set forth in Sections 3 and 4 above, during the lifetime of the Optionee,
the Stock Option may be exercised only by the Optionee, or by the Optionee’s guardian or personal or legal representative (in the event of his or her disability or by a broker dealer subject to Section 2.3 of the Plan). 
 6. No Fractional Shares. The Stock Option may be exercised only with respect to full shares, and no fractional share of stock shall be issued.

 7. Manner of Exercise. Subject to such administrative regulations as the Committee may from time to time adopt, the Option may be
exercised by the delivery of written notice to the Committee or designated Company representative setting forth the number of shares of Common Stock with respect to which the Option is to be exercised, the date of exercise thereof (the
“Exercise Date”) which shall be at least three (3) days after giving such notice unless an earlier time shall have been mutually agreed upon. On the Exercise Date, the Optionee shall deliver to the Company consideration with a value
equal to the total Option Price of the shares to be purchased, payable to the Company in full in either: (i) in cash or its equivalent, or (ii) subject to prior approval by the Committee in its discretion, by tendering previously acquired
Shares having an aggregate Fair Market Value at the time of exercise equal to the total Option Price (provided that the Shares which are tendered must have been held by the Optionee for at least six (6) months prior to their tender to satisfy
the Option Price), or (iii) subject to prior approval by the Committee in its discretion, by withholding Shares which otherwise would be acquired on exercise having an aggregate Fair Market Value at the time of exercise equal to the total
Option Price, or (iv) subject to prior approval by the Committee in its discretion, by a combination of (i), (ii), and (iii) above. Any payment in Shares shall be effected by the surrender of such Shares to the Company in good form for
transfer and shall be valued at their Fair Market Value on the date when the Stock Option is exercised. Unless otherwise permitted by the Committee in its discretion, the Optionee shall not surrender, or attest to the ownership of, Shares in payment
of the Option Price if such action would cause the Company to recognize compensation expense (or additional compensation expense) with respect to the Option for financial reporting purposes. 
 The Committee, in its discretion, also may allow the Option Price to be paid with such other consideration as shall constitute lawful consideration for
the issuance of Shares (including, without limitation, effecting a “cashless exercise” with a broker of the Option), subject to applicable securities law restrictions and tax withholdings, or by any other means which the Committee
determines to be consistent with the Plan’s purpose and applicable law. A “cashless exercise” of an Option is a procedure by which a broker provides the funds to the Optionee to effect an Option exercise, to the extent consented to by
the Committee in its discretion. At the direction of the Optionee, the broker will either (i) sell all of the Shares received when the 

  

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Option is exercised and pay the Optionee the proceeds of the sale (minus the Option Price, withholding taxes and any fees due to the broker) or
(ii) sell enough of the Shares received upon exercise of the Option to cover the Option Price, withholding taxes and any fees due the broker and deliver to the Optionee (either directly or through the Company) a stock certificate for the
remaining Shares. 
 As soon as practicable after receipt of a written notification of exercise and full payment, the Company shall deliver,
or cause to be delivered, to or on behalf of the Optionee, in the name of the Optionee or other appropriate recipient, Share certificates for the number of Shares purchased under the Option. Such delivery shall be effected for all purposes when the
Company or a stock transfer agent of the Company shall have deposited such certificates in the United States mail, addressed to Optionee or other appropriate recipient. 
 If the Optionee fails to pay for any of the Shares specified in such notice or fails to accept delivery thereof, then the Option, and right to purchase such Shares may be forfeited by the Company. 
 8. Nonassignability. The Stock Option is not assignable or transferable by the Optionee except by will or by the laws of descent and distribution
or pursuant to a domestic relations order that would qualify as a qualified domestic relations order as defined in Section 414(p) of the Code, if such provision were applicable to the Stock Option and as otherwise permitted under
Section 5.2 of the Plan. 
 9. Rights as Stockholder. The Optionee will have no rights as a stockholder with respect to any
shares covered by the Stock Option until the issuance of a certificate or certificates to the Optionee for the Optioned Shares. The Optioned Shares shall be subject to the terms and conditions of this Agreement and Plan regarding such Shares. Except
as otherwise provided in Section 10 hereof, no adjustment shall be made for dividends or other rights for which the record date is prior to the issuance of such certificate or certificates. 
 10. Adjustment of Number of Optioned Shares and Related Matters. The number of shares of Common Stock covered by the Stock Option, and the Option
Prices thereof, shall be subject to adjustment in accordance with Section 5.5 of the Plan. 
 11. Nonstatutory Stock Option. The
Stock Option shall not be treated as an Incentive Stock Option. 
 12. Community Property. Each spouse individually is bound by, and
such spouse’s interest, if any, in any Shares is subject to, the terms of this Agreement. Nothing in this Agreement shall create a community property interest where none otherwise exists. 
 13. Optionee’s Representations. Notwithstanding any of the provisions hereof, the Optionee hereby agrees that he will not exercise the Stock
Option granted hereby, and that the Company will not be obligated to issue any shares to the Optionee hereunder, if the exercise thereof or the issuance of such shares shall constitute a violation by the Optionee or the Company of any provision of
any law or regulation of any governmental authority or Company policies, or the rules of the stock exchange on which the Common Stock is listed. Optionee acknowledges and agrees that if he or she is an officer, director or key employee of the

  

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Company, Optionee will be subject to the Company’s securities trading policy as it may be in effect from time to time and which may “black
out” periods of time during which the Stock Option may not be exercised or which may also limit the amount of Shares that may be purchased or sold to a number that is less than requested by the Optionee. Any determination in this connection by
the Company shall be final, binding, and conclusive. The obligations of the Company and the rights of the Optionee are subject to all applicable laws, rules, and regulations, rules of the stock exchange on which the Common Stock is listed and
policies of the Company. 
 14. Investment Representation. The Optionee represents and warrants to the Company that all Common Stock
which may be purchased hereunder will be acquired by the Optionee for investment purposes for his own account and not with any intent for resale or distribution in violation of federal or state securities laws. 
 15. Optionee’s Acknowledgments. The Optionee acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the
terms and provisions thereof, and hereby accepts this Option subject to all the terms and provisions thereof. The Optionee hereby agrees to accept as binding, conclusive, and final all decisions or interpretations of the Committee, the Company or
the Board, as appropriate, upon any questions arising under the Plan or this Agreement. 
 16. Law Governing. This Agreement shall be
governed by, construed, and enforced in accordance with the laws of the State of Nevada (excluding any conflict of laws rule or principle of Nevada law that might refer the governance, construction, or interpretation of this agreement to the laws of
another state). 
 17. No Right to Continue Service or Employment. Nothing herein shall be construed to confer upon the Optionee the
right to continue in the employ or to provide services to the Company, its Affiliates or any Parent or Subsidiary or their Affiliates, whether as an employee or as a consultant or as an Outside Director, or interfere with or restrict in any way the
right of the Company or any of the other foregoing entities to discharge the Optionee as an employee, consultant or Outside Director at any time. 
 18. Legal Construction. In the event that any one or more of the terms, provisions, or agreements that are contained in this Agreement shall be held by a Court of competent jurisdiction to be invalid, illegal, or unenforceable in any
respect for any reason, the invalid, illegal, or unenforceable term, provision, or agreement shall not affect any other term, provision, or agreement that is contained in this Agreement and this Agreement shall be construed in all respects as if the
invalid, illegal, or unenforceable term, provision, or agreement had never been contained herein. 
 19. Covenants and Agreements as
Independent Agreements. Each of the covenants and agreements that is set forth in this Agreement shall be construed as a covenant and agreement independent of any other provision of this Agreement. The existence of any claim or cause of action
of the Optionee against the Company, whether predicated on this Agreement or otherwise, shall not constitute a defense to the enforcement by the Company of the covenants and agreements that are set forth in this Agreement. 
  

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 20. Entire Agreement. This Agreement together with the Plan supersede any and all other prior
understandings and agreements, either oral or in writing, between the parties with respect to the subject matter hereof and constitute the sole and only agreements between the parties with respect to the said subject matter. All prior negotiations
and agreements between the parties with respect to the subject matter hereof are merged into this Agreement. Each party to this Agreement acknowledges that no representations, inducements, promises, or agreements, orally or otherwise, have been made
by any party or by anyone acting on behalf of any party, which are not embodied in this Agreement or the Plan and that any agreement, statement or promise that is not contained in this Agreement or the Plan shall not be valid or binding or of any
force or effect. 
 21. Parties Bound. The terms, provisions, and agreements that are contained in this Agreement shall apply to, be
binding upon, and inure to the benefit of the parties and their respective heirs, executors, administrators, legal representatives, and permitted successors and assigns, subject to the limitation on assignment expressly set forth herein. No person
or entity shall be permitted to acquire any Optioned Shares without first executing and delivering an agreement in the form satisfactory to the Company making such person or entity subject to the restrictions on transfer contained herein.

 22. Modification. No change or modification of this Agreement shall be valid or binding upon the parties unless the change or
modification is in writing and signed by the parties. Notwithstanding the preceding sentence, the Company may amend the Plan or revoke this Stock Option to the extent permitted by the Plan. 
 23. Headings. The headings that are used in this Agreement are used for reference and convenience purposes only and do not constitute substantive
matters to be considered in construing the terms and provisions of this Agreement. 
 24. Gender, Number and Term Optionee. Words of
any gender used in this Agreement shall be held and construed to include any other gender, and words in the singular number shall be held to include the plural, and vice versa, unless the context requires otherwise. Whenever the term
“Optionee” is used herein under circumstances applicable to any other person or persons to whom this award may be assigned in accordance with the provisions of Paragraph 8, the term “Optionee” shall be deemed to include such
person or persons. 
 25. Independent Legal and Tax Advice. Optionee acknowledges that the Company has advised Optionee to obtain
independent legal and tax advice regarding the grant and exercise of the Option and the disposition of any Shares acquired thereby. 
 26.
Notice. Any notice required or permitted to be delivered hereunder shall be deemed to be delivered only when actually received by the Company or by the Optionee, as the case may be, at the addresses set forth below, or at such other addresses
as they have theretofore specified by written notice delivered in accordance herewith: 
  

	 	a.	Notice to the Company shall be addressed and delivered as follows: 

 Omega Protein Corporation 
 2101 CityWest Blvd. 
  

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 Bldg. 3, Suite 500 
 Houston, TX 77042 

	 	Attn:	John Held, Executive Vice President and General Counsel 

	 	Fax:	(713) 940-6122 

  

	 	b.	Notice to the Optionee shall be addressed and delivered to Optionee’s address as set forth in the Company’s records. 

 27. Tax Requirements. 
  

	 	a.	Tax Withholding. This Option is subject to and the Company shall have the power and the right to deduct or withhold, or require the Optionee to remit to the Company, an
amount sufficient to satisfy federal, state, and local taxes, domestic or foreign, required by law or regulation to be withheld with respect to any taxable event arising as a result of the Plan and this Option. 

  

	 	b.	Share Withholding. With respect to tax withholding required upon the exercise of Stock Options or upon any other taxable event arising as a result of the Stock Option,
Optionee may elect, subject to the approval of the Committee in its discretion, to satisfy the withholding requirement, in whole or in part, by having the Company withhold Shares having a Fair Market Value on the date the tax is to be determined
equal to the minimum statutory total tax which could be imposed on the transaction. All such elections shall be made in writing, signed by the Optionee, and shall be subject to any restrictions or limitations that the Committee, in its discretion,
deems appropriate. Any fraction of a Share required to satisfy such obligation shall be disregarded and the amount due shall instead be paid in cash by the Optionee. 

 [Signature Page Follows] 
  

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 IN WITNESS WHEREOF, the Company has caused this Agreement to be executed by its duly authorized officer,
and the Optionee, to evidence his consent and approval of all the terms hereof, has duly executed this Agreement, as of the date specified in Section 1 hereof. 
  

			
	COMPANY:
	
	OMEGA PROTEIN CORPORATION
	
	By:                                       
                                         
                
	Name: Joseph von Rosenberg III
	Title: President and Chief Executive Officer
	
	OPTIONEE:
	
	                                       
                                         
                       
	[NAME]	 	

  

 8Second Supplemental Indenture

 Exhibit 4.3 
 EXECUTION COPY 
 CREDENCE SYSTEMS CORPORATION, the Company 
 LTX-CREDENCE CORPORATION, the Parent 
 and

 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., 
 Trustee 
  
  
 SECOND SUPPLEMENTAL INDENTURE

 Dated as of January 30, 2009 
 To 
 INDENTURE 
 Dated
as of December 20, 2006, 
 As amended by 
 SUPPLEMENTAL INDENTURE 
 Dated as of August 29, 2008 
  
  
 Relating to 
 Credence Systems Corporation 
 3.5% Convertible Senior Subordinated Notes due 2010 

 SECOND SUPPLEMENTAL INDENTURE 
 This SECOND SUPPLEMENTAL INDENTURE (this “Second Supplemental Indenture”), dated as of the 30th day of January, 2009, is made by and among
CREDENCE SYSTEMS CORPORATION, a Delaware corporation (the “Company”), LTX-CREDENCE CORPORATION, a Massachusetts corporation formerly known as LTX Corporation (the “Parent”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
(formerly known as THE BANK OF NEW YORK TRUST COMPANY, N.A.), as trustee under the Indenture referred to below (the “Trustee”). 
 WITNESSETH: 
 WHEREAS, the Company and the Trustee have heretofore entered into that certain Indenture dated as of
December 20, 2006 (as amended, modified and supplemented from time to time, including by the First Supplemental Indenture (as defined below), the “Indenture”), providing for the issuance of an initial principal amount of $122,500,000
of 3.5% Convertible Senior Subordinated Notes due 2010 (the “Convertible Notes”); 
 WHEREAS, as a result of the merger of
Zoo Merger Corporation, formerly a Delaware corporation and wholly-owned subsidiary of the Parent (“Merger Sub”), with and into the Company, pursuant to the Agreement and Plan of Merger dated as of June 20, 2008, among the Company,
Merger Sub and the Parent, the Company became a direct, wholly-owned subsidiary of the Parent and the Parent, the Company and the Trustee executed the Supplemental Indenture, dated as of August 29, 2008 (the “First Supplemental
Indenture”); 
 WHEREAS, the First Supplemental Indenture amended the Indenture to provide for, among other things, the issuance
of shares of the Parent’s Common Stock upon conversion of the Convertible Notes, as more particularly described in the First Supplemental Indenture; 
 WHEREAS, the Parent now intends to cause the Company to merge with and into the Parent, with the Parent being the surviving corporation of such merger (the “Merger”), immediately after the execution
and delivery of this Second Supplemental Indenture; 
 WHEREAS, Section 5.01 of the Indenture permits the Company to merge with
another corporation provided certain conditions are satisfied; 
 WHEREAS, Section 9.01(c) of the Indenture authorizes the
Company and the Trustee to amend the Indenture without the consent of any holders of the Convertible Notes for the purpose of evidencing the succession of another person to the Company and providing for the assumption by such successor of the
covenants and obligations of the Company under the Indenture and in the Convertible Notes as permitted by Section 5.01 of the Indenture; 
 WHEREAS, the Company and the Parent desire to execute this Second Supplemental Indenture in compliance with Sections 5.01 and 9.01(c) of the Indenture; 
 WHEREAS, all acts and things necessary to make this Second Supplemental Indenture a valid and binding agreement for the purposes and objects herein expressed have been duly done and performed, and the execution
of this Second Supplemental Indenture has been in all respects, duly authorized; and 
  

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 WHEREAS, the foregoing recitals are made as representations or statements of fact by the Company
and the Parent and not by the Trustee; 
 NOW, THEREFORE, in consideration of the premises and of other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the Company and the Parent hereby covenant and agree with the Trustee, for the equal and proportionate benefit of the respective holders from time to time of the
Convertible Notes, as follows: 
 ARTICLE I 
 ASSUMPTION OF OBLIGATIONS 
 On the terms and subject to the conditions set forth herein, effective as
of the Effective Time (as defined below), (i) the Parent hereby assumes the due and punctual payment of the principal of, and interest and Liquidated Damages, if any, on all of the outstanding Convertible Notes and the performance of every
covenant of such Convertible Notes and the Indenture and the Registration Rights Agreement on the part of the Company to be performed or observed and (ii) the Parent hereby succeeds to, and is substituted for, and may exercise every right and
power of, the Company under the Indenture with the same effect as if the Parent had been named as the Company under the Indenture. 
 ARTICLE II 
 CONDITION TO EFFECTIVENESS 
 This Second Supplemental Indenture shall become effective concurrently with the effective time of the Merger (the “Effective Time”). The Company will promptly notify the Trustee of the Effective Time and the
effectiveness of this Second Supplemental Indenture. 
 ARTICLE III 
 MISCELLANEOUS PROVISIONS 
 Section 3.1 The internal laws of the
State of New York shall govern this Second Supplemental Indenture, without regard to the conflict of laws provisions thereof. 
 Section 3.2 Effective as of the Effective Time, the term “Company” in the Indenture shall mean the Parent until a successor replaces the Parent in accordance with Article V of the Indenture. All other terms used in
this Second Supplemental Indenture which are defined in the Indenture, the Trust Indenture Act, or which are by reference therein defined in the Securities Act (except as herein otherwise expressly provided or unless the context otherwise requires)
shall have the meanings assigned to such terms in the Indenture, the Trust Indenture Act, and in said Securities Act, as in force at the date of the execution of this Second Supplemental Indenture. The words “herein,” “hereof’
and “hereunder,” and words of similar import refer to this Second Supplemental Indenture as a whole and not to any particular Article, Section or other Subsection. 
  

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 Section 3.3 Nothing in this Second Supplemental Indenture, expressed or implied, shall give
or be construed to give any person, firm or corporation, other than the parties hereto and their successors hereunder, and the holders of the Convertible Notes, any legal or equitable right, remedy or claim under or in respect to this Second
Supplemental Indenture, or under any covenant, condition or provision herein contained; all such covenants, conditions and provisions being for the sole benefit of the parties hereto and their successors hereunder and the holders of the Convertible
Notes. 
 Section 3.4 The Trustee accepts the amendment of the Indenture effected by this Second Supplemental Indenture and
agrees to execute the trust created by the Indenture as hereby amended, but only upon the terms and conditions set forth in the Indenture, including the terms and provisions defining and limiting the liabilities and responsibilities of the Trustee,
which terms and provisions shall in like manner define and limit its liabilities and responsibilities in the performance of the trust created by the Indenture as hereby amended. 
 Section 3.5 After the consummation of the Merger, any Convertible Notes authenticated and delivered in substitution for, or in lieu of,
Convertible Notes then outstanding and all Convertible Notes presented or delivered to the Trustee on and after the Effective Time for such purpose shall be either restated to give effect to this Second Supplemental Indenture or, in lieu thereof,
shall bear a legend substantially as follows: 
 “The consideration received upon conversion of the principal amount of this Convertible
Note shall be determined with reference to shares of the Common Stock, without par value per share, of LTX-Credence Corporation (the “Parent”), at a Conversion Price per share of $13.46, such Conversion Price being subject to certain
adjustments as set forth in the Indenture. Reference herein to “Common Stock of the Company” or the “Company’s Common Stock” shall be deemed to be to the Common Stock of the Parent. The Indenture, dated as of
December 20, 2006, referred to in this Note has been amended by a Supplemental Indenture dated as of August 29, 2008 (the “First Supplemental Indenture”) to provide for such convertibility. 
 Such Indenture, as amended, has been further amended by a Second Supplemental Indenture, dated as of January 30, 2009, in connection with the merger
of Credence Systems Corporation into the Parent to provide for (i) the assumption by Parent of the due and punctual payment of the principal of, and interest and Liquidated Damages, if any, on this Note and the performance of every covenant of
this Note and such Indenture and the related Registration Rights Agreement dated December 20, 2006 on the part of the Company to be performed or observed and (ii) the succession of the Parent to, and the substitution for, and the right to
exercise every right and power of, the Company under the Indenture with the same effect as if the Parent had been named as the Company therein. 
  

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 Reference is hereby made to the First Supplemental Indenture and the Second Supplemental Indenture,
copies of which are on file with the Parent, for a statement of the amendments therein made.” 
 Nothing contained in this Second
Supplemental Indenture shall require the holder of any Convertible Note to submit or exchange such Convertible Note prior to the consummation of the Merger in order to obtain the benefits of any provisions hereunder. 
 The Company agrees to provide for the reproduction of the above legend on the Convertible Notes without materially obscuring the text of the Convertible
Notes. 
 Anything herein contained to the contrary notwithstanding, the Trustee shall not at any time be under any responsibility to acquire
or cause any Convertible Note now or hereafter outstanding to be presented or delivered to it for any purpose provided for in this Section 3.5. 
 Section 3.6 Except as expressly supplemented by this Second Supplemental Indenture, the Indenture, the Convertible Notes issued thereunder and the charge and obligation created thereby are in all respects
ratified and confirmed and all of the rights, remedies, terms, conditions, covenants and agreements of the Indenture and the Convertible Notes issued thereunder shall remain in full force and effect. 
 Section 3.7 If any provision of this Second Supplemental Indenture limits, qualifies or conflicts with any provision of the Indenture, which
is required to be included by any of the provisions of Section 310 to 317, inclusive, of the Trust Indenture Act, such required provision shall control. 
 Section 3.8 The recitals contained in this Second Supplemental Indenture shall be taken as statements of the Company and the Parent, and the Trustee assumes no responsibility for their correctness. The
Trustee makes no representations as to the validity or sufficiency of this Second Supplemental Indenture. 
 Section 3.9 This
Second Supplemental Indenture may be executed in any number of counterparts, each of which shall be an original and all of which shall together constitute one and the same instrument. 
 [Signatures on next page] 
  

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 IN WITNESS WHEREOF, the parties hereto have caused this Second Supplemental Indenture to be duly executed
as of the day and year first above written. 
  

			
	 CREDENCE SYSTEMS CORPORATION

		
	 By:
	 	 /s/ David G. Tacelli

	 Name:
	 	David G. Tacelli
	 Title:
	 	President and Chief Executive Officer
	
	 LTX-CREDENCE CORPORATION

		
	 By:
	 	 /s/ David G. Tacelli

	 Name:
	 	David G. Tacelli
	 Title:
	 	President and Chief Executive Officer
	
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
		
	 By:
	 	 /s/ Melonee Young

	 Name:
	 	Melonee Young
	 Title:
	 	Vice President

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