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May 2006

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Subject:
From:
Steve Gregory <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Steve Gregory <[log in to unmask]>
Date:
Wed, 3 May 2006 09:20:35 -0500
Content-Type:
text/plain
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text/plain (46 lines)
Yep, looks like it "Popcorned" to me. Was the deviced sealed in a
moisture barrier bag just prior to you placing and reflowing it?
How long was it out of the bag?

-Steve Gregory- 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Azman
Sent: Wednesday, May 03, 2006 8:47 AM
To: [log in to unmask]
Subject: [TN] BGA problem

Hi TechNet members,

I have one issue that I encountered recently whereby my BGA has warped
after reflow. Please see attached link below to see how does the warped
BGA look like. The BGA type is FPBGA and my reflow profile is OK. Your
input and comment is greatly appreciated to help me solve this issue.

http://img72.imageshack.us/my.php?image=bgawarp9ot.jpg

Regards,

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