In a message dated 07/24/2000 11:09:14 AM Central Daylight Time,
[log in to unmask] writes:

<< Hey all.

 How should one go about inspecting PGAs after wave soldering?  I've checked
the archives, but can't find anything.  I would imagine that you'd have to
use X-ray equipment, but are there specific angle to take shots from?

 Thanks,


 Eric Kalgren
 BFGoodrich Aerospace
 Space Flight Systems
 [log in to unmask]
 (505) 938-5139 >>

Hi Eric!

Most of the PGA's I've seen are ceramic, are yours? If they're ceramic, it's
gonna be pretty difficult to x-ray...that's where an ERSA scope would come in
handy. Most PGA's that I've done are socketed, and I've been lucky because
usually the sockets have openings where I would be able to see the pins on
the inside.

I've got an ERSA scope now, I'll find a board around here with a PGA on it
and put a picture up to show you what it can do...

-Steve Gregory-

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