Electronics Forum: pbga256 (4)

BGA warpage

Electronics Forum | Wed Jan 20 13:07:16 EST 1999 | Robert Noory

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

Re: BGA warpage

Electronics Forum | Wed Jan 20 20:42:08 EST 1999 | Tony A

| 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 h

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