BGA warpage

2017/2/28 5:40:02

I have received prototype PBGA (256 pins) devices from Motorola (actual part number = KXPC850ZT50). These parts seemed very warped on the edges. When I put the part on a plain surface, it rocks quite a bit when I press lightly on a corner. I have had intermittent problems with the pins on the corners. How can I mesure if the level of warpage is acceptable ? What measures can I take to minimize the effect of this warpage.

Michele Deligio

2017/3/2 5:40:02

Remarkable.I have learned a lot from your post.

Roberto Dias

2017/3/2 5:40:02

It answered all my puzzles.Very helpful.

William Paul

2017/3/2 5:40:02

It answered all my puzzles.Very helpful.

hobbydepot.my

2017/3/2 5:40:02

My favorite psot here. Its very impressive and helpful.

Sergey Alexandrovich

2017/3/2 5:40:02

Awesome post. Like it very much.

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Andy

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