I am a floor shop engineer for a Digital Oscilloscope line.  Our PCA's have
mixed technology and down to 20 mil. (typically 25 mil and above).
Typically the boards are 12" X 12" with approx. 10K chances for error (ie.
Comp. Count + Lead Count).  Typically 10% of the parts are located on the
secondary side.  I would like to know what the industry considers an
acceptable defect rate in PPM coming into a subassembly test department,
after an in-house QA lot inspection, and rate from an outside PCA house.
My QA department has a certain threshold in mind before something is a
"problem".  I want to know if their threshold is at least in the ballpark
of the industry.  Thank you.

Best Regards,

Mike Forrester
LeCroy Corp.
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