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February 2001

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Subject:
From:
Kathy Kuhlow <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 15 Feb 2001 13:08:30 -0600
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Would that be more when a burn-in cycle takes that components to close to the maximum threshold?  If you degraded a componnet through processing then the burn-in would verify this. 

kathy



JF,
 
Due to the increasing reliability of commercial components, some studies suggest that the stress during burn-in (handling, temperature, voltage) will not screen out any latent defects but will instead reduce the reliability of your product.
 
Best Regards
Craig
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Bissonnette, Jean-Francois
Sent: Thursday, February 15, 2001 1:14 PM
To: [log in to unmask]
Subject: [TN] Burn-in


Are burn-in required on every units that come out of production or is it usually done on
a sampling basis?  If it has to be done on every unit, why is that so?  We're requested
to do it on all units, by contract.  But some believe that is overkill... I'm among them.
 
Any thoughts???
 
Thanks in advance!
 
JF


WABTEC CORPORATION CONFIDENTIALITY NOTE
The content contained in this e-mail transmission is legally privileged and confidential information intended only for the use of the individual or entity named herein. If the reader of this transmission is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this transmission is strictly prohibited.



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" http-equiv=Content-Type> <META content="MSHTML 5.00.2614.3500" name=GENERATOR></HEAD> <BODY style="FONT: 8pt Arial; MARGIN-LEFT: 2px; MARGIN-TOP: 2px"> <DIV><FONT size=1>Would that be more when a burn-in cycle takes that components to close to the maximum threshold?&nbsp; If you degraded a componnet through processing then the burn-in would verify this.&nbsp;</FONT></DIV> <DIV>&nbsp;</DIV> <DIV><FONT size=1>kathy<BR><BR><BR></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=710055818-15022001>JF,</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=710055818-15022001></SPAN></FONT>&nbsp;</DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=710055818-15022001>Due to the increasing reliability of commercial components, some studies suggest that the stress during burn-in (handling, temperature, voltage) will not screen out any latent defects but will instead reduce the reliability of your product.</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=710055818-15022001></SPAN></FONT>&nbsp;</DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=710055818-15022001>Best Regards</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=710055818-15022001>Craig</SPAN></FONT></DIV> <BLOCKQUOTE>   <DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma   size=2>-----Original Message-----<BR><B>From:</B> TechNet   [mailto:[log in to unmask]]<B>On Behalf Of </B>Bissonnette,   Jean-Francois<BR><B>Sent:</B> Thursday, February 15, 2001 1:14   PM<BR><B>To:</B> [log in to unmask]<BR><B>Subject:</B> [TN]   Burn-in<BR><BR></DIV></FONT>   <DIV><FONT face=Arial size=2>   <DIV><FONT face=Arial size=2><SPAN class=653040118-15022001>Are burn-in   required on every units that come out of production or is it usually done   on</SPAN></FONT></DIV>   <DIV><FONT face=Arial size=2><SPAN class=653040118-15022001>a sampling   basis?&nbsp; If it has to be done on every unit, why is that so?&nbsp; We're   requested</SPAN></FONT></DIV>   <DIV><FONT face=Arial size=2><SPAN class=653040118-15022001>to do it on all   units, by contract.&nbsp; But some believe that is overkill... I'm among   them.</SPAN></FONT></DIV>   <DIV><FONT face=Arial size=2><SPAN   class=653040118-15022001></SPAN></FONT>&nbsp;</DIV>   <DIV><FONT face=Arial size=2><SPAN class=653040118-15022001>Any   thoughts???</SPAN></FONT></DIV>   <DIV><FONT face=Arial size=2><SPAN   class=653040118-15022001></SPAN></FONT>&nbsp;</DIV>   <DIV><FONT face=Arial size=2><SPAN class=653040118-15022001>Thanks in   advance!</SPAN></FONT></DIV>   <DIV><FONT face=Arial size=2><SPAN   class=653040118-15022001></SPAN></FONT>&nbsp;</DIV>   <DIV><FONT face=Arial size=2><SPAN   class=653040118-15022001>JF</SPAN></FONT></DIV></FONT></DIV><CODE><FONT   size=3><BR><BR>WABTEC CORPORATION CONFIDENTIALITY NOTE<BR>The content   contained in this e-mail transmission is legally privileged and confidential   information intended only for the use of the individual or entity named   herein. If the reader of this transmission is not the intended recipient, you   are hereby notified that any dissemination, distribution, or copying of this   transmission is strictly prohibited.<BR></BLOCKQUOTE></FONT></CODE></BODY></HTML>

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