[SI-LIST] Re: routing decoupling caps.

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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