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______________________________ Forward Header __________________________________
Subject: HAST
Author:  [log in to unmask] at _internetcc
Date:    7/9/96 1:52 AM


     
    \0
    
TO
   :         I4235700 IBMMAIL   new address for ipc technet 25.6.96

   FR
   OM:       DSTEWART EX2       D.Stewart        - Product Development
Ma
nager.

   DA
   TE:       9 July 1996
SU
   BJECT:    HAST
RE
   FERENCE:  highly accelerated stress testing

    We
     performed HAST (highly accelerated stress testing) on product fo
    r a particular customer some years ago, which was designed to take 
    the product to failure in order that failure modes could be 
    analysed and product life determined. Does anyone out there 
    recognise the term HAST, and if so could you provide details 
    (non-proprietary) on what the testing involved. We are particularly 
    interested in relation to the new types of circuit constructions 
    with micro blind vias (SBU, laser drilled, Dyconex etc).
     
    Thankyou
    Dougal Stewart
    Product Development Manager
    Exacta Circuits
    Scotland
     
    tel +44 1750 21601
    fax +44 1750 22513
    e-mail [log in to unmask]
     
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