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Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 10 Mar 1999 09:20:21 +0000 |
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Hi TN,
Has anybody out there in the "real world" ever had cause to solder a
BGA onto a socket so that it turns into a Pin Grid Array? I need to
make up some test boards for a customer, and we dont have the BGA at
the minute, but the electrical folks want to test their design without
waiting for the BGA to arrive. Some body found a supplier who can
supply an adaptor, which is essentially a piece of FR4 with enough
pins to cover all the balls. One end of each pin has a small cup to
take the ball, while the other is a standard pin.
It seems a simple enough idea, place the BGA and reflow, has
anybody done this before, or something similar?
Do you think it likely that the I will need more solder paste in
the cups? Looking at the cup size, and the ball size I think I may
have to add some paste, but the cups stick up nearly 2mm from the FR4,
so printing is not really that suitable, could dispensing be a better
bet (dont have any experience in that!)
Any help would be appreciated,
Thanks
Roger
Roger Massey
Motorola AIEG
UK
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