set the solder mask expansion for the pad in the design rules.. (or set the
'tent' option)
I prefer to set a rule to allow 10-20 mil larger solder mask on NPTH pads
with no copper to stop solder mask running down the hole (if its a liquid)
Simon
-----Original Message-----
From: N-Luo/Yu-Ming ( INC) [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 13 March 2001 16:47
To: Protel EDA Forum
Subject: [PEDA] Use Pad Stack
Dear all,
I try to use the pads on multilayer using pad stack. I set the top and
middle layer pad to 0, and set the hole as a NPTH, But when I chech the
gerber file, I noticed a round flash with 8mil diameter on the top solder
mask layer. How to solve that?
Thanks.
Luo.
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