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June 2004

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Subject:
Re: Relation between physical size and frequency??
From:
David Douthit <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 11 Jun 2004 08:07:58 -0700
Content-Type:
text/plain
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text/plain (46 lines) 
Saravanan,

Another reason for size reduction is called "skin effect". As the
frequency increases the impedence
of the same surface area size metal surfaces (wires/traces) will
increase. Size (length) reduction helps off set signal loss.

David A. Douthit
Manager
LoCan LLC

Saravanan wrote:

>Hi,
>        Could some one explain me quantitatively why the physical size of an
>electronic chip reduce in size as the operating frequency increases. I
>remember the P2 processor is conspicuously bigger than the latest P4
>processor. What is the reason behind?
>
>Regards,
>Saravanan.K
>
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