Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


BGA Inspect

Harvey Grossman

#16282

BGA Inspect | 9 April, 1998

Is there a good way to inspect BGA balls ? Is there an inspection piece of equiip.?

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Earl Moon

#16284

Re: BGA Inspect | 9 April, 1998

| Is there a good way to inspect BGA | balls ? Is there an inspection piece | of equiip.? It depends on what you intend inspecting. For dimensional and tolerance measurements, I have used optical comparators. For solder ball voiding, X-Ray is used. Do you have other needs? Earl Moon

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Jon Medernach

#16283

Re: ???Why Inspect BGA's | 10 April, 1998

| Is there a good way to inspect BGA | balls ? Is there an inspection piece | of equiip.? The idea is to develope a process that eliminates insoection. BGA's, by the nature of the design, do not lend themselves to inspection. Even X ray is subjective, you cannot see a cold solder joint with x-ray. Most current placement machines have ball inspect software. This is all you should need. If your having a problem with your BGA's have your vendor fix the problem, your paying for a good part!

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