Electronics Forum | Tue Jun 03 15:10:51 EDT 2014 | clydestrum
Yes, unfortunately I was alerted to this problem at QC. (which is a reoccurring issue)
Electronics Forum | Tue Jun 03 08:49:06 EDT 2014 | patel_daxa29
Check out the set up of Depanelizer. Try to cut at slower speed & check the blades to make sure it is not time to resharp the blades. If all this parameters OK I would sustect lamination process of board house.
Electronics Forum | Thu Jun 05 10:17:12 EDT 2014 | swag
Can you cut v-scores deeper to resolve the issue then build carriers to support the panel? I would say that we usually build carriers for anything that thin regarless of the depanel method.
Electronics Forum | Tue Jun 10 21:15:01 EDT 2014 | comatose
We had a similar problem once, it was due to insufficient v-score depth. While waiting for remade PCBs we would run an exacto knife along the score lines prior to depanel to cut a little deeper. Not ideal for sure, and not fast, but it worked.
Electronics Forum | Tue Jun 03 19:28:06 EDT 2014 | hegemon
Maybe the V-Score is not deep enough? I am used to seeing more like a 30% remaining web, you are closer to 50% 'hege
Electronics Forum | Thu Jun 12 13:36:32 EDT 2014 | clydestrum
Deepening the V-scores was in vain. No change. This board is on Rev R now, with no changes to material/array/v-score spec, and this is the first we've seen this problem. I just don't get it.
Electronics Forum | Fri May 29 07:17:30 EDT 2015 | kkay
We have a small board about 1" by .5" and it is .012" thick. It is in a 50 up panel. We have tried rat bites and v-score and we keep seeing delamination around the edges. Anyone have experience depaneling boards this thin?
Electronics Forum | Tue Jun 03 10:28:09 EDT 2014 | swag
Incoming inspection: Look for flaws and measure position of v-score as well as depth. If v-scored on both sides of panel, make sure v-scores are in alignment. Follow the PCB thru all processes inspecting after each stage of processing, especially
Electronics Forum | Mon Jun 02 15:03:05 EDT 2014 | clydestrum
Background on the PCB: Thickness: .032" Material: Standard Fr4 V-score: Leaves .016" (approx .008" cuts on either side) We are having some issues on these boards where the edges are delaminating all the way to the copper during de-panel. Now, we are
Electronics Forum | Fri Jun 06 17:47:14 EDT 2014 | hegemon
SWAG has it. Carriers for SMT are a great idea, especially to mitigate sag, and allow some savings in setup. Fixturing setup advantage: You could fixture everything to a fixed width, and eliminate rail setups throughout your lines. Trade off the f
winsouce.jpg)
