[SI-LIST] Re: Non-Functional Pads
- From: Ralph A Wilson III <wilson@xxxxxxxxxxxxxxxxxx>
- To: cherrick@xxxxxxxxxx
- Date: Mon, 30 Apr 2007 06:13:25 -0500
Chris,
As a final step in our PCB design/layout process, we
standardly remove all unconnected pads unless the via
is for a press-fit/through-hole connection, where the pads
are needed for structural integrity. This is done
prior to shipping the files to the PCB fab.
Ralph Wilson
Alcatel-Lucent
On 04/27/07 15:26, Chris Herrick wrote:
> Hello all, it's my understanding that non-functional pads degrade
> performance of signal vias however most PCB manufactures do not remove
> them by default. I do a lot of via modeling and am curious about what
> the most common practice is. Do people generally request to remove
> non-functional pads or do they leave them in the design? How common are
> the manufacturing issues that prohibit removal of the NFPs.
>
>
> Thanks,
>
> Chris
>
>
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