[LOGO]AEHR TEST SYSTEMS

March 5, 2013

Rhea J. Posedel

Dear Mr. Posedel:

On behalf of the Board of Directors of Aehr Test Systems (the "Company"), I am pleased to offer you continuing employment as the Company's Chairman of the Board (the "Chairman") in a non-executive capacity, on the terms set forth herein. This offer is contingent upon your resignation from your current position as the Company's Executive Chairman, and by signing this letter you hereby resign as the Company's Executive Chairman. As the Chairman, you will receive a yearly salary of $100,000 beginning effective as of February 1, 2013, which will be paid bi-weekly in accordance with the Company's normal payroll procedures. In this capacity, you will continue to receive certain employee benefits, including group medical, dental, life insurance and long term disability coverage. Your accrued vacation balance as of January 31, 2013 will be paid out to you at your then current pay rate, and no additional vacation time will be accrued thereafter on your behalf. In addition you will also be eligible for stock option grants pursuant to the Company's 2006 Equity Incentive Plan and participation in the Employee Stock Ownership Plan and the Employee Stock Purchase Plan (as permitted), as shall be determined from time to time by the Compensation Committee of the Board of Directors. You should note that the Company may modify job titles, salaries and benefits from time to time as it deems necessary. The Company is excited about your continuing service and looks forward to a beneficial and productive relationship.

Your employment with the Company in the role of Chairman shall be for a minimum term of three (3) years, with your employment continuing on an at-will basis thereafter.

Please further note that with your acceptance of this offer, the terms of your Amended and Restated Change of Control Severance Agreement dated January 3, 2012 will be amended and superseded by an Amended and Restated Change of Control Severance Agreement (the "Amended Agreement"). The Amended Agreement will provide, among other things, that in the case of your Involuntary Termination (as defined therein) during your three (3) year term of employment, other than as a result of an Involuntary Termination within twelve (12) months

following a Change of Control (as defined therein), you will receive the balance of your base salary for your three (3) year employment term, payable in a lump sum within thirty (30) days of your Involuntary Termination. Additionally, any stock options granted by the Company to you prior to your Involuntary Termination will become fully vested and exercisable as of the date of your termination to the extent such stock options are outstanding and unexercisable at the time of your termination.

Further, in the case of your Involuntary Termination at any time within twelve (12) months after the Change of Control, the Amended Agreement will provide that you will receive the greater of (a) your remaining term of employment base salary or (b) eighteen (18) months of base salary, payable in a lump sum within thirty (30) days of your Involuntary Termination. Additionally, any stock options granted by the Company to you prior to the Change of Control and your Involuntary Termination will become fully vested and exercisable as of the date of the termination to the extent such stock options are outstanding and unexercisable at the time of your termination.

You agree that, during the term of your employment with the Company, you will not engage in any other employment, occupation, consulting or other business activity directly related to the business in which the Company is now involved or becomes involved during the term of your employment, nor will you engage in any other activities that conflict with your obligations to the Company. Similarly, you agree not to bring any third party confidential information to the Company and that in performing your duties for the Company you will not in any way utilize any such information.

In the event of any dispute or claim relating to or arising out of our employment relationship, you and the Company agree that (i) any and all disputes between you and the Company shall be fully and finally resolved by binding arbitration, (ii) you are waiving any and all rights to a jury trial but all court remedies will be available in arbitration,
(iii) all disputes shall be resolved by a neutral arbitrator who shall issue a written opinion, (iv) the arbitration shall provide for adequate discovery, and (v) the Company shall pay all but the first $125 of the arbitration fees.

To accept the Company's offer, please sign and date this letter in the space provided below. A duplicate original is enclosed for your records. This letter, along with any agreements relating to proprietary rights between you and the Company, set forth the terms of your employment with the Company and supersede any prior representations or agreements, including, but not limited to, the Offer Letter dated January 3, 2012 between you and the Company, and any representations made during your any negotiations, whether written or oral. This letter may not be modified or amended except by a written agreement signed by the Chief Executive Officer of the Company and you.

We look forward to your favorable reply and to continuing to work with you at Aehr Test Systems.

Sincerely,

/S/ GAYN ERICKSON
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Gayn Erickson,
President and Chief Executive Officer

Agreed to and accepted:

Signature:     /S/ RHEA J. POSEDEL
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Printed Name:  RHEA J. POSEDEL
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Date:  March 5, 2013

Enclosures
Duplicate Original Letter

AEHR TEST SYSTEMS

AMEMDED AND RESTATED CHANGE OF CONTROL SEVERANCE AGREEMENT

This Amended and Restated Change of Control Severance Agreement (the "Agreement") is made and entered into by and between Rhea J. Posedel ("Employee") and Aehr Test Systems, a California corporation (the "Company"), effective as of March 5, 2013 (the "Effective Date"). The Agreement replaces in its entirety the Amended and Restated Change of Control Severance Agreement previously entered into between Employee and the Company, which was dated January 3, 2012.

R E C I T A L S

A. It is expected that the Company from time to time will consider the possibility of a Change of Control. The Board of Directors of the Company (the "Board") recognizes that such consideration can be a distraction to the Employee and can cause the Employee to consider alternative employment opportunities.

B. The Board believes that it is in the best interests of the Company and its shareholders to provide the Employee with an incentive to continue his employment and to maximize the value of the Company upon a Change of Control for the benefit of its shareholders.

C. In order to provide the Employee with enhanced financial security and sufficient encouragement to remain with the Company notwithstanding the possibility of a Change of Control, the Board believes that it is imperative to provide the Employee with certain severance benefits upon the Employee's termination of employment following a Change of Control.

AGREEMENT

In consideration of the mutual covenants herein contained and the continued employment of Employee by the Company, the parties agree as follows:

1. Definition of Terms. The following terms referred to in this Agreement shall have the following meanings:

(a) Cause. "Cause" shall mean (i) any act of personal dishonesty taken by the Employee in connection with his responsibilities as an employee which is intended to result in substantial personal enrichment of the Employee, (ii) Employee's conviction of a felony which the Board reasonably believes has had or will have a material detrimental effect on the Company's reputation or business, (iii) a willful act by the Employee which constitutes misconduct and is injurious to the Company, and/or (iv) continued willful violations by the Employee of the Employee's obligations to the Company after there has been delivered to the Employee a written demand for performance from the Company which describes the basis for the Company's belief that the Employee has not substantially performed his duties.

(b) Change of Control. "Change of Control" shall mean the occurrence of any of the following events:

(i) the approval by shareholders of the Company of a merger or consolidation of the Company with any other corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity) more than fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity outstanding immediately after such merger or consolidation;

(ii) the approval by the shareholders of the Company of a plan of complete liquidation of the Company or an agreement for the sale or disposition by the Company of all or substantially all of the Company's assets;

(iii) any "person" (as such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934, as amended) becoming the "beneficial owner" (as defined in Rule 13d-3 under said Act), directly or indirectly, of securities of the Company representing fifty percent (50%) or more of the total voting power represented by the Company's then outstanding voting securities; or

(iv) a change in the composition of the Board, as a result of which fewer than a majority of the directors are Incumbent Directors. "Incumbent Directors" shall mean directors who either (A) are directors of the Company as of the date hereof, or (B) are elected, or nominated for election, to the Board with the affirmative votes of at least a majority of those directors whose election or nomination was not in connection with any transactions described in subsections (i), (ii), or (iii) or in connection with an actual or threatened proxy contest relating to the election of directors of the Company.

(c) Involuntary Termination. "Involuntary Termination" shall mean (i) without the Employee's express written consent, a significant reduction of the Employee's duties, position or responsibilities relative to the Employee's duties, position or responsibilities in effect immediately prior to such reduction, or the removal of the Employee from such position, duties and responsibilities, unless the Employee is provided with comparable duties, position and responsibilities; provided, however, that a reduction in duties, position or responsibilities solely by virtue of the Company being acquired and made part of a larger entity (as, for example, when the Chief Financial Officer of the Company remains as such following a Change of Control but is not made the Chief Financial Officer of the acquiring corporation) shall not constitute an "Involuntary Termination;" (ii) without the Employee's express written consent, a substantial reduction, without good business reasons, of the facilities and perquisites (including office space and location) available to the Employee immediately prior to such reduction; (iii) a reduction by the Company of the Employee's base salary as in effect immediately prior to such reduction; (iv) a material reduction by the Company in the kind or level of employee benefits to which the Employee is entitled immediately prior to such reduction with the result that the Employee's overall benefits package is significantly reduced; (v) without the Employee's express written consent, the relocation of the

Employee to a facility or a location more than fifty (50) miles from his current location; (vi) any purported termination of the Employee by the Company which is not effected for Cause or for which the grounds relied upon are not valid; or (vii) the failure of the Company to obtain the assumption of this Agreement by any successors contemplated in Section 6 below.

(d) Termination Date. "Termination Date" shall mean the effective date of any notice of termination delivered by one party to the other hereunder.

2. Term of Agreement. This Agreement shall terminate upon the date that all obligations of the parties hereto under this Agreement have been satisfied or, if earlier, on the date, prior to a Change of Control, Employee is no longer employed by the Company.

3. Term Employment. The Company and the Employee acknowledge that the Employee's employment is for a minimum term of three (3) years, with Employee's employment continuing on an at-will basis thereafter. If the Employee's employment terminates for any reason, the Employee shall not be entitled to any payments, benefits, damages, awards or compensation other than as provided by this Agreement, or as may otherwise be established under the Company's then existing employee benefit plans or policies at the time of termination.

4. Severance Benefits.

(a) Involuntary Termination Apart from a Change of Control. If the Employee's employment with the Company terminates as a result of an Involuntary Termination during Employee's three (3) year term of employment, other than as a result of an Involuntary Termination within twelve (12) months following a Change of Control, then Employee shall be entitled to the following severance benefits:

(i) the balance of Employee's base salary for Employee's three (3) year term of employment, payable in a lump sum within thirty (30) days of Employee's Involuntary Termination; and

(ii) any stock options granted by the Company to Employee prior to Employee's Involuntary Termination shall become fully vested and exercisable as of the date of termination to the extent such stock options are outstanding and unexercisable at the time of Employee's termination and all stock subject to a right of repurchase by the Company (or its successor) that was purchased prior to the termination shall have such right of repurchase lapse with respect to all of the shares.

(iii) Employee may elect to forgoe the severance benefits set forth in Section 4(a)(i) above in favor of receiving the severance or other benefits (if any) as may then be established under the Company's then existing severance and benefits plans and policies at the time of Employee's termination.

(b) Involuntary Termination Following A Change of Control. If the Employee's employment with the Company terminates as a result of an Involuntary Termination at any time

within twelve (12) months after a Change of Control, then Employee shall be entitled to the following severance benefits:

(i) the greater of (a) Employee's remaining term of employment base salary or (b) eighteen (18) months of base salary, payable in a lump sum within thirty (30) days of Employee's Involuntary Termination;

(ii) all stock options granted by the Company to the Employee prior to the Change of Control shall become fully vested and exercisable as of the date of the termination to the extent such stock options are outstanding and unexercisable at the time of such termination and all stock subject to a right of repurchase by the Company (or its successor) that was purchased prior to the Change of Control shall have such right of repurchase lapse with respect to all of the shares; and

(iii) the same level of health (i.e., medical, vision and dental) coverage and benefits as in effect for the Employee on the day immediately preceding the day of the Employee's termination of employment; provided, however, that (i) the Employee constitutes a qualified beneficiary, as defined in Section 4980B(g)(1) of the Internal Revenue Code of 1986, as amended; and (ii) Employee elects continuation coverage pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended ("COBRA"), within the time period prescribed pursuant to COBRA. The Company shall continue to provide Employee with health coverage until the earlier of (i) the date Employee is no longer eligible to receive continuation coverage pursuant to COBRA, or (ii) twelve (12) months from the termination date.

(c) Accrued Wages and Vacation; Expenses. Without regard to the reason for, or the timing of, Employee's termination of employment: (i) the Company shall pay the Employee any unpaid base salary due for periods prior to the Termination Date; (ii) the Company shall pay the Employee all of the Employee's accrued and unused vacation through the Termination Date; and (iii) following submission of proper expense reports by the Employee, the Company shall reimburse the Employee for all expenses reasonably and necessarily incurred by the Employee in connection with the business of the Company prior to the Termination Date. These payments shall be made promptly upon termination and within the period of time mandated by law.

5. Limitation on Payments. In the event that the severance and other benefits provided for in this Agreement or otherwise payable to the Employee (i) constitute "parachute payments" within the meaning of
Section 280G of the Code, and (ii) would be subject to the excise tax imposed by Section 4999 of the Code (the "Excise Tax"), then Employee's benefits under this Agreement shall be either

(a) delivered in full, or

(b) delivered as to such lesser extent which would result in no portion of such benefits being subject to the Excise Tax,

whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the Excise Tax, results in the receipt by Employee on an after-tax basis, of

the greatest amount of benefits, notwithstanding that all or some portion of such benefits may be taxable under Section 4999 of the Code.

Unless the Company and the Employee otherwise agree in writing, any determination required under this Section shall be made in writing by the Company's independent public accountants (the "Accountants"), whose determination shall be conclusive and binding upon the Employee and the Company for all purposes. For purposes of making the calculations required by this Section, the Accountants may make reasonable assumptions and approximations concerning applicable taxes and may rely on reasonable, good faith interpretations concerning the application of Section 280G and 4999 of the Code. The Company and the Employee shall furnish to the Accountants such information and documents as the Accountants may reasonably request in order to make a determination under this Section. The Company shall bear all costs the Accountants may reasonably incur in connection with any calculations contemplated by this Section.

6. Successors.

(a) Company's Successors. Any successor to the Company (whether direct or indirect and whether by purchase, lease, merger, consolidation, liquidation or otherwise) to all or substantially all of the Company's business and/or assets shall assume the Company's obligations under this Agreement and agree expressly to perform the Company's obligations under this Agreement in the same manner and to the same extent as the Company would be required to perform such obligations in the absence of a succession. For all purposes under this Agreement, the term "Company" shall include any successor to the Company's business and/or assets which executes and delivers the assumption agreement described in this subsection (a) or which becomes bound by the terms of this Agreement by operation of law.

(b) Employee's Successors. Without the written consent of the Company, Employee shall not assign or transfer this Agreement or any right or obligation under this Agreement to any other person or entity. Notwithstanding the foregoing, the terms of this Agreement and all rights of Employee hereunder shall inure to the benefit of, and be enforceable by, Employee's personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees.

7. Notices.

(a) General. Notices and all other communications contemplated by this Agreement shall be in writing and shall be deemed to have been duly given when personally delivered or when mailed by U.S. registered or certified mail, return receipt requested and postage prepaid. In the case of the Employee, mailed notices shall be addressed to him at the home address which he most recently communicated to the Company in writing. In the case of the Company, mailed notices shall be addressed to its corporate headquarters, and all notices shall be directed to the attention of its Secretary.

(b) Notice of Termination. Any termination by the Company for Cause or by the Employee as a result of a voluntary resignation or an Involuntary Termination shall be

communicated by a notice of termination to the other party hereto given in accordance with this Section. Such notice shall indicate the specific termination provision in this Agreement relied upon, shall set forth in reasonable detail the facts and circumstances claimed to provide a basis for termination under the provision so indicated, and shall specify the Termination Date (which shall be not more than 30 days after the giving of such notice). The failure by the Employee to include in the notice any fact or circumstance which contributes to a showing of Involuntary Termination shall not waive any right of the Employee hereunder or preclude the Employee from asserting such fact or circumstance in enforcing his rights hereunder.

8. Arbitration.

(a) Any dispute or controversy arising out of, relating to, or in connection with this Agreement, or the interpretation, validity, construction, performance, breach, or termination thereof, shall be settled by binding arbitration to be held in Santa Clara County, California, in accordance with the National Rules for the Resolution of Employment Disputes then in effect of the American Arbitration Association (the "Rules"). The arbitrator may grant injunctions or other relief in such dispute or controversy. The decision of the arbitrator shall be final, conclusive and binding on the parties to the arbitration. Judgment may be entered on the arbitrator's decision in any court having jurisdiction.

(b) The arbitrator(s) shall apply California law to the merits of any dispute or claim, without reference to conflicts of law rules. The arbitration proceedings shall be governed by federal arbitration law and by the Rules, without reference to state arbitration law. Employee hereby consents to the personal jurisdiction of the state and federal courts located in California for any action or proceeding arising from or relating to this Agreement or relating to any arbitration in which the parties are participants.

(c) EMPLOYEE HAS READ AND UNDERSTANDS THIS SECTION, WHICH DISCUSSES ARBITRATION. EMPLOYEE UNDERSTANDS THAT SUBMITTING ANY CLAIMS ARISING OUT OF, RELATING TO, OR IN CONNECTION WITH THIS AGREEMENT, OR THE INTERPRETATION, VALIDITY, CONSTRUCTION, PERFORMANCE, BREACH OR TERMINATION THEREOF TO BINDING ARBITRATION, CONSTITUTES A WAIVER OF EMPLOYEE'S RIGHT TO A JURY TRIAL AND RELATES TO THE RESOLUTION OF ALL DISPUTES RELATING TO ALL ASPECTS OF THE EMPLOYER/EMPLOYEE RELATIONSHIP, INCLUDING BUT NOT LIMITED TO, THE FOLLOWING CLAIMS:

(i) ANY AND ALL CLAIMS FOR WRONGFUL DISCHARGE OF EMPLOYMENT; BREACH OF CONTRACT, BOTH EXPRESS AND IMPLIED; BREACH OF THE COVENANT OF GOOD FAITH AND FAIR DEALING, BOTH EXPRESS AND IMPLIED; NEGLIGENT OR INTENTIONAL INFLICTION OF EMOTIONAL DISTRESS; NEGLIGENT OR INTENTIONAL MISREPRESENTATION; NEGLIGENT OR INTENTIONAL INTERFERENCE WITH CONTRACT OR PROSPECTIVE ECONOMIC ADVANTAGE; AND DEFAMATION.

(ii) ANY AND ALL CLAIMS FOR VIOLATION OF ANY FEDERAL, STATE OR MUNICIPAL STATUTE, INCLUDING, BUT NOT LIMITED TO, TITLE VII OF THE CIVIL RIGHTS ACT OF 1964, THE CIVIL RIGHTS ACT OF 1991, THE AGE DISCRIMINATION IN EMPLOYMENT ACT OF 1967, THE AMERICANS WITH DISABILITIES ACT OF 1990, THE FAIR LABOR STANDARDS ACT, THE CALIFORNIA FAIR EMPLOYMENT AND HOUSING ACT, AND LABOR CODE SECTION 201, et seq;

(iii) ANY AND ALL CLAIMS ARISING OUT OF ANY OTHER LAWS AND REGULATIONS RELATING TO EMPLOYMENT OR EMPLOYMENT DISCRIMINATION.

9. Miscellaneous Provisions.

(a) No Duty to Mitigate. The Employee shall not be required to mitigate the amount of any payment contemplated by this Agreement, nor shall any such payment be reduced by any earnings that the Employee may receive from any other source.

(b) Waiver. No provision of this Agreement may be modified, waived or discharged unless the modification, waiver or discharge is agreed to in writing and signed by the Employee and by an authorized officer of the Company (other than the Employee). No waiver by either party of any breach of, or of compliance with, any condition or provision of this Agreement by the other party shall be considered a waiver of any other condition or provision or of the same condition or provision at another time.

(c) Integration. This Agreement and any outstanding stock option agreements referenced herein represent the entire agreement and understanding between the parties as to the subject matter herein and supersede all prior or contemporaneous agreements, whether written or oral, with respect to this Agreement and any stock option agreement.

(d) Choice of Law. The validity, interpretation, construction and performance of this Agreement shall be governed by the internal substantive laws, but not the conflicts of law rules, of the State of California.

(e) Severability. The invalidity or unenforceability of any provision or provisions of this Agreement shall not affect the validity or enforceability of any other provision hereof, which shall remain in full force and effect.

(f) Employment Taxes. All payments made pursuant to this Agreement shall be subject to withholding of applicable income and employment taxes.

(g) Counterparts. This Agreement may be executed in counterparts, each of which shall be deemed an original, but all of which together will constitute one and the same instrument.

IN WITNESS WHEREOF, each of the parties has executed this Agreement, in the case of the Company by its duly authorized officer, as of the day and year first above written.

COMPANY: AEHR TEST SYSTEMS

                              By:   /S/ GAYN ERICKSON
                                    -------------------------------------
                              Name: Gayn Erickson
                                    -------------------------------------
                              Title:President and Chief Executive Officer
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EMPLOYEE:                     /S/ RHEA J. POSEDEL
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                              Signature