[SI-LIST] Control Impedance testing
- From: BO-LIAO <boliao_sg@xxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Sun, 30 Aug 2009 20:09:01 +0800 (SGT)
Dear Sir,
My PCB supplier doesn't test control impedance on actual board. They said
control impedance is measured on test coupon.
Please advice if it is realistic and reliable to use the test coupon measured
impedance?
Is this an industry norm, or standard?
Thank you.
Best regards,
Liao Bo
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