|Ask the Experts|
September 3, 2014
V - Scoring PCB Question
I am considering scoring a PCB with a 90 degreescoring blade after SMT placement and reflow to create a card edge connector ona PCB. I would score deep enough to bevel and depanelize in 1 step. Is there a precedence for doing this? Are there any horror stories of failures?
|Expert Panel Responses|
I'venot heard of anyone doing the scoring after SMT, though Iím sure it has beendone. I canít think of any show stoppers... there are, however, some risks thatneed to be addressed. Here are the ones I can think of:
You will generatepost-assembly dust that will include metal (copper) particulates. Otherwise,going sufficiently deep to depanel with a 90-degree cutter will produce amoderately wide bevel. Other issues depend on actual PCB substrate and v-scoreprocess control.
Circuit Connect, Inc.
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