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February 2005

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Subject:
Re: Removal of Non-functional pads
From:
Brian Ellis <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Brian Ellis <[log in to unmask]>
Date:
Wed, 9 Feb 2005 16:53:53 +0200
Content-Type:
text/plain
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text/plain (40 lines) 
I have always considered non-funct. pads as being desirable, because
they help compress the prepreg layes into a compact mass which would
reduce nasties like CAFs etc. At the same time, the extra copper keeps
the drill bit cooler by conducting more heat away.

Brian

Pete menuez wrote:
> Can someone explain the advantage of removing non-functional pads on
> innerlayers? We are contemplating adding non-functional pads to our designs
> but want to understand the impact if we do.
>
> Thanks
>
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