we would like to change over from QFP's to BGA in our assembly process
but before doing so I need to define the reliability test program for
the assembly process. The environment that the assembly will be used in
undergoes many thermal excursions during a day, -40C to + 30C is not
untypical.
Any suggestions regarding a specification that I can use as a starting
point. The BGA's will be plastic body up to 400 I/O's.
Regards.
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