[hpsdr] bypass caps

Ray Anderson ray.anderson at xilinx.com
Thu Jul 6 10:58:50 PDT 2006



>> For really low mounting inductance you can go to a via-in-pad
design...

>This makes machine assembly tricky.  Many assembly houses won't deal 
>with this approach, or charge extra.  I found out the hard way...

>For hand assembly, it works great.

>73,

>Lyle KK7P


Lyle-

Yep, you are correct. The run of the mill assembly houses will have
issues with via-in-pad designs (the solder getting sucked down the via
hole is the main issue). The high-techy shops that assemble workstations
and server PCB's finally figured out how to do it consistently, but
needed to go through $ome $pecial $teps and proce$$e$ to be $uccessful.
(like plugging vias, using extra small via drills, etc....)

73,

-Ray	WB6TPU


 1152208730.0


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