**Exhibit 10.6**

**EXECUTIVE EMPLOYMENT AGREEMENT**

This Executive Employment Agreement (the “Agreement”), datedMarch 13, 2006 and effective as of December 7, 2006, is between CREDENCE SYSTEMS CORPORATION (the “Company”) and LAVI LEV (“Executive”).

**I. POSITION AND RESPONSIBILITIES**

**A. Position.**The Company shall employ Executive to render services to the Company in the position of President and Chief Executive Officer (“CEO”), reporting to the Company’s Board of Directors (the “Board”). Executive shall perform suchduties and responsibilities as are normally related to such position in accordance with the standards of the industry and any additional duties now or hereafter assigned to Executive by the Company and/or its Board. Executive shall abide by therules, regulations, and practices as adopted or modified from time to time in the Company’s sole discretion. 

**B. Other Activities.** Except uponthe prior written consent of the Company, Executive will not, during the term of this Agreement, (i) accept any other employment, or (ii) engage, directly or indirectly, in any other business activity (whether or not pursued for pecuniaryadvantage) that might interfere with Executive’s duties and responsibilities hereunder or create a conflict of interest with the Company. The following shall be understood not to interfere with Executive’s duties and responsibilitieshereunder: (i) Executive’s management of his personal finances, (ii) Executive’s participation in charitable organizations; and (iii) Executive’s participation as a member of the Board of Directors or similar body ofthe companies listed on Schedule I to this Agreement (as amended by mutual agreement of the parties from time to time) and their respective affiliates, provided that Executive shall not serve as an operating officer of any such company. 

**C. No Conflict.**Executive represents and warrants that his execution of this Agreement, his employment with the Company, and the performance of his proposedduties under this Agreement shall not violate any obligations he may have to any other employer, person or entity, including any obligations with respect to proprietary or confidential information of any other person or entity. 

**II. COMPENSATION AND BENEFITS**

**A. Base Salary.** Inconsideration of the services to be rendered under this Agreement, the Company shall pay Executive an annual base salary of Five Hundred Thousand Dollars (“Base Salary”). The Base Salary shall be paid in accordance with the Company’sregularly established payroll practice. Executive’s Base Salary will be reviewed on an annual basis by the Compensation Committee of the Board (the “Compensation Committee”) and may be adjusted in the sole discretion of theCompensation Committee.****

**B. Bonus.** Executive shall be eligible for an annual target incentive bonus equal to One Hundred Percent(100%) of his then-current Base Salary (“Target Bonus”) under the Company’s management incentive bonus plan, based on Executive’s achievement of performance objectives determined by the Company. 

**C. Benefits.**Executive shall be eligible to participate in the benefits made generally available by the Company tosimilarly-situated executives, in accordance with the benefit plans established by the Company, and as may be amended from time to time in the Company’s sole discretion. 

**D. Expenses.** The Company shall reimburse Executive for reasonable business expenses (including travel and entertainment expenses) incurred in the performance of Executive’s duties hereunder in accordancewith the Company’s expense reimbursement guidelines. 

**E. Stock Options.** Executive will be granted a non-qualified option to purchase 1,000,000shares of the Company’s Common Stock (the “Option Shares”), subject to the terms of the Company’s Stock Option Agreement (the “Stock Option Agreement”) and the Company’s 2005 Stock Incentive Plan (the “StockIncentive Plan”). The Option Shares shall vest according to the following schedule, subject to Executive’s continued service to the Company: (i) 25% of the Option Shares shall vest on the first anniversary of the date of grant, and(ii) the remaining 75% of the Option Shares shall vest in twelve equal and successive quarterly installments upon the Executive’s completion of each additional three (3) month period of service thereafter. The date of grant and theexercise price per share of the Option Shares shall be determined by the Board. 

**F. Restricted Stock.** Executive will be granted 200,000 restrictedshares of the Company’s Common Stock (the “Restricted Shares”), subject to the terms of the Company’s Restricted Stock Agreement (the “Restricted Stock Agreement”) and the Company’s Stock Incentive Plan. TheRestricted Shares shall vest according to the following schedule, subject to Executive’s continued service to the Company: 25% of the Restricted Shares shall vest on the first anniversary of the date of grant, and an additional 25% of theRestricted Shares shall vest on each anniversary thereafter for the next three years. The date of grant and the exercise or purchase price per share of the Restricted Shares shall be determined by the Board. 

**III. AT-WILL EMPLOYMENT; TERMINATION BY COMPANY**

**A. At-WillTermination by Company.** Executive’s employment with the Company shall be “at-will” at all times. The Company may terminate Executive’s employment with the Company at any time, without any advance notice, for any reason or noreason at all, notwithstanding anything to the contrary contained in or arising from any statements, policies or practices of the Company relating to the employment, discipline or termination of its employees. Upon and after such termination, allobligations of the Company under this Agreement shall cease, except as otherwise provided herein. 

**B. Separation Benefits.** Except in situationswhere the employment of Executive is terminated For Cause (as defined in Section IV below), in the event that the Company terminates Executive’s employment at any time, Executive will be eligible to receive the following benefits (collectively,“Separation Benefits”): 

**1.**an amount equal to eighteen (18) months’ pay at Executive’s then-current BaseSalary, payable in equal monthly installments over the eighteen (18) month period following the date of such termination (“Salary Continuation Period”); 

 

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**2.**accelerated vesting of Executive’s outstanding and unvested stock options and/orrestricted stock such that said stock options and/or restricted stock shall be vested as of the date Executive’s employment terminates to the same extent as if he were continuously employed through the end of the Salary Continuation Period;provided that notwithstanding the terms of the relevant notice of stock option award or notice of restricted stock award (each an “Award”), such vesting shall be calculated as if such stock options and restricted stock vested in equalamounts on a monthly basis commencing on the initial grant date and ending on the final vesting date under the relevant Award; 

**3.**if Executive elects to continue medical coverage for himself or his dependents then covered by the Company’s medical plans under the Consolidated Omnibus Reconciliation Act (“COBRA”), the Company shall pay the premiums forExecutive’s COBRA coverage until the earlier of (a) the end of the Salary Continuation Period or (b) the date Executive becomes covered under another employer’s health plan; and 

**4.**continued payment of the premiums required to maintain Executive’s coverage under his Company-provided life insurance policy during theSalary Continuation Period. 

Notwithstanding the foregoing, if Executive begins other employment during the Salary Continuation Period, Executive shallreceive an accelerated lump-sum payment of the remaining payments for the Salary Continuation Period, in lieu of salary continuation. Executive shall not be eligible to participate in the Company’s deferred compensation, 401K, or employee stockpurchase plans during the Salary Continuation Period. 

Executive’s eligibility for the foregoing Separation Benefits is conditioned on(a) Executive remaining available during the Salary Continuation Period to consult with the Company regarding matters for which he previously had responsibility as a Company executive; (b) Executive having first signed a release agreementin the form attached as Exhibit A, and (c) Executive’s agreement not to compete with the Company, or its successors or assigns, during the Salary Continuation Period. If Executive engages in any business activity competitive with theCompany or its successors or assigns during the Salary Continuation Period, all Separation Benefits immediately shall cease. 

Notwithstanding any otherprovision of this Agreement to the contrary, the Company, in its sole discretion and without the Executive’s consent, may amend or modify this Agreement in any manner to provide for the application and effects of Section 409A of theInternal Revenue Code (the “Code”) (relating to deferred compensation arrangements) and any related regulatory or administrative guidance issued by the Internal Revenue Service. The Company shall have the authority to delay the payment ofany benefits described under this Agreement to the extent it deems necessary or appropriate to comply with Section 409A(a)(2)(B)(i) of the Code (relating to payments made to certain “key employees” of certain publicly-tradedcompanies) and in such event, any such payments to which the Executive would otherwise be entitled during the six (6) month period immediately following the Executive’s separation from service will be paid on the first business dayfollowing the expiration of such six (6) month period. 

 

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**IV. OTHER TERMINATIONS BY COMPANY**

**A. Termination for Cause.** For purposes of this Agreement, “For Cause” shall mean: (i) Executive is convicted of or pleads no contest to a crime involving dishonesty, breach of trust, orintentional physical harm to any person; (ii) Executive willfully engages in conduct that is in bad faith and materially injurious to the Company, including but not limited to, misappropriation of trade secrets, fraud or embezzlement;(iii) Executive commits a material breach of this Agreement, which breach is not cured within twenty days after written notice to Executive from the Company; (iv) Executive willfully refuses to implement or follow a lawful policy ordirective of the Company, which refusal has a material adverse effect on the Company and which refusal is not cured within twenty days after written notice to Executive from the Company; or (v) Executive engages in misfeasance or malfeasancedemonstrated by a pattern of failure to perform job duties diligently and professionally and Executive has been notified of such pattern and has not remedied such failure within thirty (30) days after receipt of such notice. The Company mayterminate Executive’s employment For Cause at any time, without any advance notice except as specified above. The Company shall pay to Executive all compensation to which Executive is entitled up through the date of termination, subject to anyother rights or remedies of the Company under law; and thereafter all obligations of the Company under this Agreement shall cease. 

**B. By Death.**Executive’s employment shall terminate automatically upon Executive’s death. The Company shall pay to Executive’s beneficiaries or estate, as appropriate, any compensation then due and owing and the Separation Benefits described inSection III(B) above, subject to the terms and conditions set forth therein. Thereafter all obligations of the Company under this Agreement shall cease. Nothing in this Section shall affect any entitlement of Executive’s heirs or devisees tothe benefits of any life insurance plan or other applicable benefits. 

**C. By Disability.** If Executive becomes eligible for the Company’s longterm disability benefits or if, in the sole opinion of the Company, Executive is unable to carry out the responsibilities and functions of the position held by Executive by reason of any physical or mental impairment for more than ninety consecutivedays or more than one hundred and twenty days in any twelve-month period, then, to the extent permitted by law, the Company may terminate Executive’s employment. The Company shall pay to Executive all compensation to which Executive is entitledup through the date of termination, and the Separation Benefits described in Section III(B) above, subject to the terms and conditions set forth therein. Thereafter all obligations of the Company under this Agreement shall cease. Nothing in thisSection shall affect Executive’s rights under any disability plan in which Executive is a participant. 

 

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**V. CHANGE OF CONTROL**

**A. “Change of Control.”** For purposes of this Agreement, “Change of Control” shall mean a change in ownership or control of the Company effected through a merger, consolidation or acquisition by any person orrelated group of persons (other than an acquisition by the Company or by a Company-sponsored employee benefit plan or by a person or persons that directly or indirectly controls, is controlled by, or is under common control with, the Company) ofbeneficial ownership (within the meaning of Rule 13d-3 of the Securities Exchange Act of 1934) of securities possessing more than fifty percent of the total combined voting power of the outstanding securities of the Company. 

**B. Termination Following a Change of Control.** If the Executive is still employed as the Company’s CEO at the time of a Change of Control and the Companyterminates Executive’s employment in the absence of Cause and within twelve (12) months following a Change of Control, Executive will be eligible to receive the following Separation Benefits, subject to the same conditions set forth inSection III(B) above: 

**1.**an amount equal to (a) twelve (12) months’ pay at Executive’s then-current Base Salary,plus (b) One Hundred Percent (100%) of Executive’s annual Target Bonus, payable in equal monthly installments over the twelve (12) month period following the date of such termination (“Salary Continuation Period”);

**2.**accelerated vesting as to 100% of Executive’s outstanding and unvested stock options and/or restricted stock such that allsuch stock options and/or restricted stock shall be fully vested as of the date Executive’s employment terminates; 

**3.**ifExecutive elects to continue medical coverage for himself or his dependents then covered by the Company’s medical plans under the Consolidated Omnibus Reconciliation Act (“COBRA”), the Company shall pay the premiums forExecutive’s COBRA coverage until the earlier of (a) the end of the Salary Continuation Period or (b) the date Executive becomes covered under another employer’s health plan; and 

**4.**continued payment of the premiums required to maintain Executive’s coverage under his Company-provided life insurance policy during theSalary Continuation Period. 

**C. Termination Without Cause Prior to a Change in Control.**If Executive’s employment is terminated by the Companywithout Cause and a Change in Control occurs within six months following such termination, the Company shall pay to Executive upon the occurrence of such Change in Control (i) an amount equal to the difference between One Hundred Percent(100%) of Executive’s Annual Target Bonus in effect at the time of such termination and six (6) months’ pay at the Base Salary in effect at the time of such termination plus (ii) an amount equal to the difference between(x) the aggregate exercise price of all of Executive’s stock options that expired unexercised (whether vested or unvested) from and after the date of Executive’s termination and (y) the value (based upon the price of suchsecurities in the Change of Control transaction or, if the Change of Control is implemented through a series of transactions, the highest price in such series of transactions) of (A) the securities for which such unexercised options could havebeen exercised and (B) any shares of restricted stock that were forfeited by Executive to the Company from and after the date of termination of Executive’s employment.****

 

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**VI. TERMINATION BY EXECUTIVE**

**A. At-Will Termination By Executive.** Executive may terminate his employment with the Company at any time for any reason or no reason at all, upon four (4) weeks’ advance written notice. During such notice period Executiveshall continue to diligently perform all of Executive’s duties hereunder. The Company shall have the option, in its sole discretion, to make Executive’s termination effective at any time prior to the end of such notice period as long asthe Company pays Executive all compensation to which Executive is entitled up through the last day of the four (4) week notice period. Thereafter all obligations of the Company shall cease. 

**B. Termination by Executive for Good Reason.** Notwithstanding anything else in this Agreement, if Executive terminates his employment with the Company for GoodReason (as defined below), the following shall apply: 

**1.**Executive shall give two weeks’ advance written notice of suchtermination, which notice shall specify the reason for termination; 

**2.**Company shall pay to Executive all compensation to whichExecutive is entitled through the date of termination, and the Separation Benefits described in items (1)-(4) of Section III(B) above, provided that (i) the amount payable under item (1) of such Section shall be paid in a single lumpsum upon termination and (ii) Executive shall not be subject to the restrictions set forth in the penultimate paragraph of such Section; provided, however, that if the Company engages in such conduct giving rise to a termination by Executivefor Good Reason within twelve (12) months following a Change of Control. Executive shall be entitled to the Separation Benefits described in items (1)-(4) of Section V(B) above. 

**“Good Reason”** shall mean any of the following: (1) a breach by Company of its obligations to Executive arising in connection with this Agreement,which breach is not cured within twenty days after written notice to the Company from Executive; or (2) if Company relocates, without Executive’s consent, the principal place of Executive’s duties to a place more than 40 miles fromSaratoga, California; or (3) if Company substantially, materially, and without Executive’s consent reduces Executive’s title or job responsibilities, reduces the benefits available to Executive or reduces Executive’s salary,except for general, across-the-board reductions in benefits by the Company affecting all employees equally and not disproportionately affecting Executive. 

**VII. TERMINATION OBLIGATIONS**

**A. Return of Property.** Executive agrees that all property (including without limitation all equipment,tangible proprietary information, documents, records, notes, contracts and computer-generated materials) furnished to or created or prepared by Executive incident to Executive’s employment belongs to the Company and shall be promptly returnedto the Company upon termination of Executive’s employment. 

 

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**B. Resignation and Cooperation.** Upon termination of Executive’s employment, Executive shall be deemed to haveresigned from all offices and directorships then held with the Company. Following any termination of employment, Executive shall cooperate with the Company in the winding up of pending work on behalf of the Company and the orderly transfer of workto other employees. Executive shall also cooperate with the Company in the defense of any action brought by any third party against the Company that relates to Executive’s employment by the Company. 

**VIII. INVENTIONS AND PROPRIETARY INFORMATION; PROHIBITION ON THIRD PARTY INFORMATION**

**A. Proprietary Information Agreement.** Executive acknowledges that he has signed and remains bound by the terms of the Company’s Proprietary Information and Inventions Agreement, which is attached asExhibit B (“Proprietary Information Agreement”), provided that in the event of any inconsistency between the terms of the Proprietary Information Agreement and this Agreement, the terms of this Agreement shall control. 

**B. Non-Solicitation.** Executive acknowledges that because of Executive’s position in the Company, Executive will have access to material intellectual propertyand confidential information. During the term of Executive’s employment and for one year thereafter, in addition to Executive’s other obligations hereunder or under the Proprietary Information Agreement, Executive shall not, for Executiveor any third party, directly or indirectly (a) divert or attempt to divert from the Company any business of any kind, including without limitation the solicitation of or interference with any of its customers, clients, members, businesspartners or suppliers, or (b) solicit or otherwise induce any person employed by the Company to terminate his employment. 

**C. Non-Disclosure ofThird Party Information.** Executive represents and warrants and covenants that Executive shall not disclose to the Company, or use, or induce the Company to use, any proprietary information or trade secrets of others at any time, including butnot limited to any proprietary information or trade secrets of any former employer, if any; and Executive acknowledges and agrees that any violation of this provision shall be grounds for Executive’s immediate termination and could subjectExecutive to substantial civil liabilities and criminal penalties. Executive further specifically and expressly acknowledges that no officer or other employee or representative of the Company has requested or instructed Executive to disclose or useany such third party proprietary information or trade secrets. 

**IX. ARBITRATION**

Executive agrees to sign and be bound by the terms of the Company’s Arbitration Agreement, which is attached as Exhibit C, provided that in the event of any inconsistency between the terms of the ArbitrationAgreement and this Agreement, the terms of this Agreement shall control. 

 

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**X. AMENDMENTS; WAIVERS; REMEDIES**

This Agreement may not be amended or waived except by a writing signed by Executive and by a duly authorized representative of the Company other than Executive. Failure to exercise any right under this Agreement shallnot constitute a waiver of such right. Any waiver of any breach of this Agreement shall not operate as a waiver of any subsequent breaches. All rights or remedies specified for a party herein shall be cumulative and in addition to all other rightsand remedies of the party hereunder or under applicable law. 

**XI. ASSIGNMENT; BINDING EFFECT**

**A. Assignment.** The performance of Executive is personal hereunder, and Executive agrees that Executive shall have no right to assign and shall not assign orpurport to assign any rights or obligations under this Agreement. This Agreement may be assigned or transferred by the Company solely in connection with a consolidation, merger or sale of the Company or a sale of substantially all of the assets ofthe Company; and nothing in this Agreement shall prevent the consolidation, merger or sale of the Company or a sale of any or all or substantially all of its assets. 

**B. Binding Effect.** Subject to the foregoing restriction on assignment by Executive, this Agreement shall inure to the benefit of and be binding upon each of the parties; the affiliates, officers, directors,agents, successors and assigns of the Company; and the heirs, devisees, spouses, legal representatives and successors of Executive. 

**XII. NOTICES**

All notices or other communications required or permitted hereunder shall be made in writing and shall be deemed to have been duly given if delivered:(a) by hand; (b) by a nationally recognized overnight courier service; or (c) by United States first class registered or certified mail, return receipt requested, to the principal address of the other party, as set forth below. Thedate of notice shall be deemed to be the earlier of (i) actual receipt of notice by any permitted means, or (ii) five business days following dispatch by overnight delivery service or the United States Mail. Executive shall be obligated tonotify the Company in writing of any change in Executive’s address. Notice of change of address shall be effective only when done in accordance with this paragraph. 

Company’s Notice Address: 

Credence Systems Corporation 

1421 California Circle 

Milpitas, CA 95035 

Executive’s Notice Address: 

As such address appears in the Human Resources records of the Company 

 

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**XIII. SEVERABILITY**

If any provision of this Agreement shall be held by a court or arbitrator to be invalid, unenforceable, or void, such provision shall be enforced to the fullest extent permitted by law, and the remainder of this Agreement shall remain infull force and effect. In the event that the time period or scope of any provision is declared by a court or arbitrator of competent jurisdiction to exceed the maximum time period or scope that such court or arbitrator deems enforceable, then suchcourt or arbitrator shall reduce the time period or scope to the maximum time period or scope permitted by law. 

**XIV. TAXES**

All amounts paid under this Agreement (including without limitation Base Salary, Bonus, or Separation Benefits) shall be paid less all applicable state and federal taxwithholdings and any other withholdings required by any applicable jurisdiction. 

**XV. GOVERNING LAW**

This Agreement shall be governed by and construed in accordance with the laws of the State of California. 

**XVI. INTERPRETATION**

This Agreement shall be construed as a whole, according to its fair meaning, and not in favor ofor against any party. Sections and section headings contained in this Agreement are for reference purposes only, and shall not affect in any manner the meaning or interpretation of this Agreement. Whenever the context requires, references to thesingular shall include the plural and the plural the singular. 

**XVII. OBLIGATIONS SURVIVE TERMINATION OF EMPLOYMENT**

Each party hereto agrees that any and all of its obligations under this agreement, including but not limited to obligations under Exhibits B and C, shall survive thetermination of employment and the termination of this Agreement. 

**XVIII. COUNTERPARTS**

This Agreement may be executed in any number of counterparts, each of which shall be deemed an original of this Agreement, but all of which together shall constitute one and the same instrument. 

**XIX. AUTHORITY**

Each party represents and warrants that such partyhas the right, power and authority to enter into and execute this Agreement and to perform and discharge all of the obligations hereunder; and that this Agreement constitutes the valid and legally binding agreement and obligation of such party andis enforceable in accordance with its terms. 

 

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**XX. ENTIRE AGREEMENT**

This Agreement is intended to be the final, complete, and exclusive statement of the terms of Executive’s employment by the Company and may not be contradicted by evidence of any prior or contemporaneous statements or agreements,except for agreements specifically referenced herein (including the Proprietary Information Agreement attached as Exhibit B, the Arbitration Agreement attached as Exhibit C, and the Stock Plan, Stock Option Agreement and the Restricted StockAgreement of the Company and any Awards thereunder). To the extent that the practices, policies or procedures of the Company, now or in the future, apply to Executive and are inconsistent with the terms of this Agreement, the provisions of thisAgreement shall control. Any subsequent change in Executive’s duties, position, or compensation will not affect the validity or scope of this Agreement. 

**XXI. EXECUTIVE ACKNOWLEDGEMENT**

EXECUTIVE ACKNOWLEDGES EXECUTIVE HAS HAD THE OPPORTUNITY TO CONSULT LEGAL COUNSEL CONCERNING THIS AGREEMENT,THAT EXECUTIVE HAS READ AND UNDERSTANDS THE AGREEMENT, THAT EXECUTIVE IS FULLY AWARE OF ITS LEGAL EFFECT, AND THAT EXECUTIVE HAS ENTERED INTO IT FREELY BASED ON EXECUTIVE’S OWN JUDGMENT AND NOT ON ANY REPRESENTATIONS OR PROMISES OTHER THANTHOSE CONTAINED IN THIS AGREEMENT. 

IN WITNESS WHEREOF, the parties have duly executed this Agreement as ofthe date first written above. 

 

**CREDENCE SYSTEMS CORPORATION**
  **LAVI LEV**By: 
/s/ David House
  
/s/ Lavi Lev
 David House   Executive Chairman of the Board   
March 13, 2007

Date
  
March 13, 2007

Date

 

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**SCHEDULE I**

**LIST OF BOARD POSITIONS**

 

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**EXHIBIT A**

**RELEASE**

 

**EXHIBIT B**

**PROPRIETARY INFORMATION AGREEMENT**

 

**EXHIBIT C**

**ARBITRATION AGREEMENT**