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PCBA filed functional test on frequency drift

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PCBA fail functional test due to frequency drift Lincy   10/14/09

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Date: October 14, 2009 03:21 AM
Author: Lincy  
Subject: PCBA fail functional test due to frequency drift

We found a PCBA performance have insertion loss at the functional test process. We did some analysis and conclude the main root cause is from the PCB performance.

What is the critical parameter in PCB will cause a failure in PCBA frequency performance?

(http://www.smtnet.com/distributed_forums/Index.cfm?CFApp=8&Message_ID=60109)