Electronics Forum | Thu May 04 13:35:28 EDT 2017 | jmathis
Hello All, I was given an assembled flex circuit PCB and asked how the board was depanelized as there are no view-able witness marks that I can see. Any ideas? Thanks in advance on any insight to depanelizing without leaving witness marks on the F
Electronics Forum | Wed May 31 07:16:06 EDT 2017 | stephendo
Don't rule out the possibility that the board shop depanelized it and it was assembled after depanelization. Been there, dealt with it, expletives deleted.
Electronics Forum | Wed Nov 25 12:33:16 EST 1998 | Scott Snider
| A buddy of mine has problems after depaneling double sided pre-scored PCB's. Resistors near the edge, after put into the slice and dice machine contain micro cracks. He's checked for them before and after depaneling. We figure it is the sectioni
Electronics Forum | Wed Nov 25 17:21:17 EST 1998 | Michael Allen
A word of caution: thick webs (i.e., shallow score grooves) can result in scrapped boards, especially if you've got the dual-wheel-type score breaking machine. I discovered recently that shallow score grooves, combined with DULL knife-edge guides on
Electronics Forum | Tue Jun 14 21:15:23 EDT 2011 | proy
We had a problem with 1825's close to the edge which were being sheared when the breakaways were flexed and removed manually, the resolution was to get a de-panelizer which eliminated the problem we were having.
Electronics Forum | Fri Jun 17 16:15:41 EDT 2011 | rway
One problem you may have with deeper scoring is not so much broads breaking apart unintentionally, but warping upstream while on the SMT line which can cause sagging. This may give you transport issues from one machine to another, and if you have an
Electronics Forum | Thu Aug 27 11:47:00 EDT 2009 | davef
Common methods used for depaneling flexible circuits are: * Laser * Punching * Water jet
Electronics Forum | Thu May 14 14:24:28 EDT 2009 | swag
We depanel most of our PCB's using a router. We design and build all of our own fixtures in-house. Our rigid boards have not been a problem and we seem to have mastered tooling designs that work well. However, we are also running thousands of pane
Electronics Forum | Sat Aug 29 17:36:45 EDT 2009 | fastek
Thanks Dave .........can anyone recommend any vendors for water jetting or punching?
Electronics Forum | Wed Aug 26 22:59:30 EDT 2009 | fastek
Local customer is looking for ways to depanelize very small flexible circuits after assembly. Perhaps shearing as opposed to a router would make sense. Any recommendations on manufacturers for such technology? Volume is around 100,000 pieces per mont
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