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February 9, 2012
Improve Scheduling in Electronics Assembly
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De-paneling PCBs by Hand?
De-paneling PCBs by Hand?
Is it acceptable to hand break when de-panelizing circuit boards that contain QFN and SMD components? Are there specs for hand breaking?
This program first published August 2010
Board Talk programs are presented by:

Phil Zarrow
Phil Zarrow, ITM Consulting
With over 35 years experience in PCB assembly, Phil is one of the leading experts in SMT process failure analysis. He has vast experience in SMT equipment, materials and processes.

Jim Hall
Jim Hall, ITM Consulting
A Lean Six-Sigma Master Blackbelt, Jim has a wealth of knowledge in soldering, thermal technology, equipment and process basics. He is a pioneer in the science of reflow.
Comments  »
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While the original question may have had more information, I see nothing to show that RM was using scored-both-sides panels. We have many panels where divisions are cut clear through (routed), leaving short support tabs. These, in turn, have a hole pattern to control break location. I developed the pattern for a board where the break HAD to be sub-flush due to clearance issues. Hand de-paneling works fine IN THIS CASE - but the karate-chop would probably not.

Ronald G. Darner, Mortara Instrument, Inc.
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De-paneling PCBs by Hand?

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