Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
ROSATI MARIO M
  2. Issuer Name and Ticker or Trading Symbol
AEHR TEST SYSTEMS [AEHR]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Assistant Secretary
(Last)
(First)
(Middle)
WILSON SONSINI GOODRICH & ROSATI, 650 PAGE MILL ROAD
3. Date of Earliest Transaction (Month/Day/Year)
04/01/2008
(Street)

PALO ALTO, CA 94304
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 04/01/2008   M   20,000 A $ 4 20,000 D  
Common Stock 04/01/2008   M   5,000 A $ 3.85 25,000 D  
Common Stock 04/01/2008   J(1)   22,500 D (1) 2,500 D  
Common Stock 04/01/2008   J(1)   22,500 A (1) 22,500 I See footnote (2)
Common Stock               27,000 I See footnote (3)
Common Stock               152,217 I See footnote (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-qualified stock option (right to buy) $ 4 04/01/2008   M     20,000   (5) 05/22/2008 Common Stock 20,000 $ 0 0 D  
Non-qualified stock option (right to buy) $ 3.85 04/01/2008   M     5,000   (6) 10/17/2008 Common Stock 5,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ROSATI MARIO M
WILSON SONSINI GOODRICH & ROSATI
650 PAGE MILL ROAD
PALO ALTO, CA 94304
  X     Assistant Secretary  

Signatures

 /s/ Mario M. Rosati   04/03/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Shares transferred for no consideration to WS Investment Company, LLC (2001A) for which the reporting person serves as a member.
(2) Shares held directly by WS Investment Company, LLC (2001A) for which the reporting person serves as a member.
(3) Shares held directly by Mario M. Rosati and Douglas Laurice, trustees for the benefit of Mario M. Rosati.
(4) Shares held directly by Mario M. Rosati Trust, U/D/T dated 1/9/90 for which the reporting person serves as trustee.
(5) The option was 100% vested on May 22, 2005.
(6) The option was 100% vested on October 17, 2002.

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