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How to remove copper pours and change clearance values?

Question asked by windell on Apr 25, 2011
Latest reply on Apr 27, 2011 by jmatthews

Hi, I'm quite new to PADS and I've designed a board with only two layers (top and bottom).

 

1) I'm attempting to do a copper pour on the top that acts as a ground plane. Some of the pads on the top layer have 100V so I would like to make sure that I have the proper clearance between the ground plane and the pads to prevent arcing. When I change the clearance values in the Design Rules, it seems that all pads (including the ground pads) on the components adjust to that clearance. I only want the non-ground pads to follow this clearance rule. Any suggestions?

 

2) How do I remporarily remove my copper pour so that I can make changes to my traces and then repour?

 

3) How do I remove thermals from some pads on my board but not others?

 

Thank you,

Windell

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