Idon't know of a spec. for pad size relative to weight.  Pad sizes are generally determined by  by component footprint. Maybe somebody with SM-275 or SM-782 can help.
-----Original Message-----
From: Walters, Karen [mailto:[log in to unmask]]
Sent: Wednesday, July 30, 2003 8:17 AM
To: [log in to unmask]
Subject: [TN]

 
Can anyone reference for me the the IPC SPEC that states what the pad surface area requirement is to the weight of the packaged device.  We may be having an issue with a floating component during reflow.  Please also provide the ratio if anyone knows it off hand.
 
thanks
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