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March 2007

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Subject:
From:
"Newland, Scott" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Newland, Scott
Date:
Fri, 9 Mar 2007 07:59:38 -0500
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Werner

In the US Polymer Ball are being marketed by Kyocera.  It is a ball made
from a Japanese supplied polymer that is first plated with copper, and
then the solder of you choice. Kyocera is marketing them as an
alternative to using solid 90/10 balls on a ceramic BGAs.  Around a
failure probability of 62% they claim a 2X based on test data compared
to a solid 90/10 ball on a ceramic BGA of moderate size.  But if you go
to failure probabilities of 1 - .1 % the Wiebull plots cross over
showing similar fatigue lives.  Give me a call for more details.

Scott Newland 
Harris GCSD 
321 768 4272 (W)
321 720 1756 (C)
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-----Original Message-----
From: Werner Engelmaier [mailto:[log in to unmask]] 
Sent: Wednesday, March 07, 2007 8:11 PM
Subject: Re: [LF] Polymer Core BGA Balls

It may be rhyme time...long before Wednesday, but........I still need 
technical information on polymer-core BGA balls.

Werner



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