Brian,

As a major OEM, we have had to write into our own standard PWB
procurement specification a whole set of requirements to ensure
meaningful and consistent impedance measurement and reporting
by our suppliers.  Approximately 80 percent of these requirements
could be applied to an improved IPC/industry controlled impedance
testing procedure.  May be this would not only help the industry,
but also OEM's would be enabled to reduce the size of their PWB
specifications by one page or more.

Sincerely,

Karl Sauter
Staff Engineer - PWB Technology
Sun Microsystems


> Date: Fri, 1 Mar 2002 09:57:39 -0500
> From: "Brian D. Butler" <[log in to unmask]>
> Subject: [TN] IPC TM-650 Standard for Impedance Testing
> To: [log in to unmask]
>
> To all:
>
> Controlled Impedance products are becoming more and more popular. I am
> interesting in hearing opinions on the relevancy of the TM-650 standard
> for controlled impedance testing. How many people our using it and if not
> should it be changed?
>
> Sincerely,
> Brian Butler
> Introbotics Corp
> (505)345-7785
> www.introbotics.com

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