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March 2012

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Subject:
From:
"Post, Scott E" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Post, Scott E
Date:
Tue, 6 Mar 2012 19:49:11 +0000
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Perfect!  I love that it shows the mid-chip solderballs in the same picture since that's the story I'm trying to tell.

Scott Post
P.O.U. 0000-001E-0CTC
2151 E. Lincoln Road
Kokomo, Indiana    46904-9005
765-451-2983 (Phone)
765-451-0287 (FAX)

-----Original Message-----
From: Steve Gregory [mailto:[log in to unmask]]
Sent: Tuesday, March 06, 2012 2:37 PM
To: 'TechNet E-Mail Forum'; Post, Scott E
Subject: RE: [TN] Need image of solder ball shorting a device

Hi Scott,

Albeit staged, how would this one work for you?

http://stevezeva.homestead.com/SolderBall.JPG

Steve

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Post, Scott E
Sent: Tuesday, March 06, 2012 10:31 AM
To: [log in to unmask]
Subject: [TN] Need image of solder ball shorting a device

I'm putting together some internal training materials on ANOVA, regression,
and DOE and I'm making up an example scenario along with some fake data for
the students to work through.  Can someone send me a picture of a small
solder ball (maybe a mid-chip solder ball from a resistor) that got loose
and lodged between a pair of QFP/SOIC/BGA leads causing a short?  I have
plenty of pictures of mid-chip solder balls from back when we were using
rectangular paste apertures, but I don't have a picture of one getting loose
causing a short.

Thanks,

Scott Post
P.O.U. 0000-001E-0CTC
2151 E. Lincoln Road
Kokomo, Indiana    46904-9005
765-451-2983 (Phone)
765-451-0287 (FAX)

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