RE: [SI-LIST] : Catching the Corners

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From: Abe Riazi (ariazi@anigma.com)
Date: Sun Mar 19 2000 - 10:43:25 PST


Dear All:

 I like to correct an error in a sentence of my earlier post.

 I had intended to write:

  "The fast, typical, and slow corners are also referred to as maximum,
nominal and minimum, or strong, typical and weak respectively"

  But it had been expressed incorrectly.

  Regards,

  Abe
   
-----Original Message-----
From: Abe Riazi
Sent: Saturday, March 18, 2000 12:28 PM
To: 'si-list@silab.eng.sun.com'
Cc: Walt Otto; Ken Hempen
Subject: [SI-LIST] : Catching the Corners

>Dear Scholars:

> There are numerous PCB and modeling parameters frequently utilized as
>inputs to a SI simulator program. Associated with such parameters are
>tolerances representative of fabrication processing variations. The
>manner by which these PCB and modeling elements are varied and combined
constitutes an important topic.

> To verify a high speed design under all manufacturing situations, it
>is considered a necessity to perform as a minimum simulation of the
>following two worst case parametric corners:

>Fast corner: a combination of "fast" PCB with "fast" drivers/receivers.
>Slow corner: composed of "slow" PCB with "slow" drivers/receivers.

> Furthermore, simulation of the typical corner may be carried out for
>purpose of correlation with physical measurements.
> The fast, typical, and slow corners are also referred to as minimum,
>nominal and slow, or strong, typical and weak respectively.
>
>
 

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