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I'm breaking out the 0.8mm pitch BGA of a STM32G474VE using a dog-bone fanout and a 1.5 oz outer layer (so, need 6 mil trace/space widths if possible). To facilitate this, is a land diameter of 0.35mm for each ball ok? The datasheet recommends 0.4mm.

TB
Associate III
 
1 REPLY 1
TDK
Guru

That's a better question for your board house and in-house design rules, rather than ST.

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