Luis,

How thick is your silver plating on your boards?

Regards,
George

George M. Wenger (908)-546-4531 
Reliability Engineer
RF Power Amplifier Group
Andrew Corporation,  40 Technology Drive, Warren, NJ 07059
[log in to unmask]



-----Original Message-----
From: Luis Gallegos [mailto:[log in to unmask]]
Sent: Monday, January 26, 2004 11:02 AM
To: [log in to unmask]
Subject: [TN] PBGA Void/pin holes


Good morning Technetters.
I am having some occasionally voids/pin holes on our PBGA. We are currently
using NC293 Sn63/Pb37 Aim solder paste. The board is silver plated. Printing
with a 6 mil stencil.
Is it normal to have occasionally voids?
We have bake our PBGA's prior to reflow, and also work with the oven
profile. Any suggestions.
Thank you

Luis A Gallegos
Automation Senior Technician
SANMINA-SCI
Pleasant Prairie  WI
Phone: 262 947-7700
[log in to unmask]

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