BGA ball to pad ratio

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I know that there is an IPC spec. for board pad size design ... - Feb 26, 2002 by Sr. Tech

Consider the hierarchy presented in ... - Feb 26, 2002 by davef

Sr. Tech

#18983

BGA ball to pad ratio | 26 February, 2002

I know that there is an IPC spec. for board pad size design for BGA components. After a little research we have found that recommendations vary from component manufacturers to board houses. (These recommendations are different than what IPC says....)

Can give me some advice here ? Thanks in advance,

Cyber

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davef

#18984

BGA ball to pad ratio | 26 February, 2002

Consider the hierarchy presented in http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=18112

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