NO!

All processes move within a window and all process need to be tracked.
The coupon measurements are reality.  Math is a wonderful tool.  But if
the shop's real output does not fall within the requirement window,
improving the calculations will not improve the product.

Regards,
Kim Haynes
Interface and Clock Products
High-Speed Serial Link Applications
Texas Instruments, Inc.
214-567-2057  Telephone


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Avigdor JAkubinsky
Sent: Monday, December 03, 2007 1:09 PM
To: [log in to unmask]
Subject: [TN] Calculated Impedance vs. CI with coupon

Hello friends,

It is always the question of controlling (CI) with Coupon measurement on
the stack.  

Would any of you The Experts trust a meticulous Calculated approach
without actually measuring the outcome impedance Out of the coupon?

I would appreciate your pointer/Link to any written facts publishes at
any given year along with your personal opinion.

Best Regards

Avigdor Jakubisnky
Engineering Mgr. 
www.fibrolan.com

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