[SI-LIST] Re: routing decoupling caps.
- From: zhangkun 29902 <zhang_kun@xxxxxxxxxx>
- To: moshef@xxxxxxxxxxx
- Date: Sun, 24 Oct 2004 23:00:28 +0800
Dear Frid
There are a lot of material about this topic. In my experience, I think the
seperation between the via from the two pins of decoupling capacitor is the
most important. In X2Y and some new kinds of AVX caps, the coupling between the
positive and negative poles are very close.
In some papers, it is said that the local decoupling, puttting the decoupling
caps very close to the power ground pins, is very important for power delivery
system. However, in our simulation and measurement, I do not found out this
kind of situation.
I hope this will help. In some field solver software, it could be gotten very
easily.
Best Regards
Zhangkun
2004.10.24
----- Original Message -----
From: Moshe Frid <moshef@xxxxxxxxxxx>
Date: Sunday, October 24, 2004 9:22 pm
Subject: [SI-LIST] routing decoupling caps.
> Hi all
>
> can someone explain the right way to rout a decoupling cap. that
> placednear the power pin of a big component
> the pcb have aground and power planes. the pin and the cap. have them
> own via.
> should I connect the cap to the pin at the top layer
>
> tanks.
>
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