Wellington Trust Co NA – ‘SC 13G/A’ on 2/5/02 re: Aehr Test Systems – EX-99

On:  Tuesday, 2/5/02   ·   Accession #:  846087-2-1   ·   File #:  5-52329

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Amendment to Statement of Beneficial Ownership   —   Schedule 13G
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: SC 13G/A    Amendment to Statement of Beneficial Ownership         5±    21K 
 2: EX-99       Miscellaneous Exhibit                                  1      4K 

EX-99   —   Miscellaneous Exhibit

POWER OF ATTORNEY                                                               

BY THIS LIMITED POWER OF ATTORNEY, the undersigned hereby constitutes and       
appoints Brian P. Hillery, Vice President of Wellington Management Company,     
llp, acting singly with full power to act, his true and lawful attorney-in-fact,
with full power of substitution, to sign any and all instruments, certificates  
and documents that may be necessary, desirable or appropriate to be executed on 
behalf of himself in his capacity as a President of Wellington Trust Company,   
na, pursuant to Section 13 of the United States Securities Exchange Act of 1934,
as amended (the "Exchange Act"), and any and all regulations promulgated        
thereunder, and to file the same, with all exhibits thereto, and any other      
documents in connection therewith, with the Securities and Exchange Commission, 
and with any other entity when and if such is mandated or required, granting    
unto said attorney-in-fact full power and authority to do and perform each and  
every act and thing necessary, desirable or appropriate, fully to all intents   
and purposes as he might or could do in person, thereby ratifying and confirming
all that said attorney-in-fact, or his substitutes, may lawfully do or cause to 
be done by virtue hereof.                                                       

IN WITNESS WHEREOF, this Power of Attorney has been signed the 17th day of      
January, 2002.                                                                  

By:--//Jonathan M. Payson//--                                                   
Name:  Jonathan M. Payson                                                       
Title:     President                                                            
Wellington Trust Company, na