Electronics Forum: ubga-48 (4)

uBGA Stencil Thickness

Electronics Forum | Wed Dec 16 19:37:19 EST 1998 | Ron Costa

I have a mixed technology board ranging from 50 mil pitch devices to 20mil Qfp's to PBGA-352 at 1.27mm, and 6 Intel uBGA-48 at 30 mil pitch. With all these different package types i'm torn between using a 4 or 5mil thick stencil. The ball dia. is 14

Re: uBGA Stencil Thickness

Electronics Forum | Thu Dec 17 10:25:19 EST 1998 | Earl Moon

| I have a mixed technology board ranging from 50 mil pitch devices to 20mil Qfp's to PBGA-352 at 1.27mm, and 6 Intel uBGA-48 at 30 mil pitch. With all these different package types i'm torn between using a 4 or 5mil thick stencil. The ball dia. is 1


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