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PBGA Double Drop

Dreamsniper

#20654

PBGA Double Drop | 12 July, 2002

Is there a standard with regards to the height of a PBGA ball diameter that will say that it has undergone a double drop ? What is the criteria of identifying that a PBGA solder ball has done a double drop and that it is acceptable or not acceptable. I do understand that the drop height varies according to the size of the Pad but what guidelines will define all these?

regards,

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JAX

#20655

PBGA Double Drop | 12 July, 2002

I don't think there is a standard, too many variables, but I could be wrong. I believe ERSA wrote a technical article that deals with double drop. You can probably find it just by doing a web search.

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