Electronics Forum | Wed Jun 15 17:47:48 EDT 2011 | davef
Classic mechanical stress crack pattern. Pretty Try baking your boards for 2 hours at 100*C Minimum spacing between board features and v-score or break away is 30thou.
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 | 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 | Sun Oct 30 12:39:13 EDT 2016 | mekmat544
Thank you for your answer, but I am litte bit confusing. There are parameters of V-scoring but with put values. How can I get values for V-scoring for pcb 1,6mm thickenss. Thank you. M.
Electronics Forum | Tue Nov 28 13:23:34 EST 2017 | georgetruitt
For connectors, we maintain a 0.05" clearance from components edge to the center of the V-groove score
Electronics Forum | Wed Jan 22 09:21:39 EST 2020 | dontfeedphils
If starting from scratch, and designing strictly for automated depanel, is there a clear winner in tabs vs scores? It seems like tab routing is quicker, easier, and more manufacturers offer solutions. I just wanted to see what people had to say abo
Electronics Forum | Mon May 21 17:37:51 EDT 2001 | davef
IPC-2222, Sectional Design Standard For Printed Board For Organic Printed Boards talks to scoring parameters in para. 5.3.1. You can obtain the standard at: http:///www.ipc.org. and Document Center [http://www.document-center.com/home.cfm/sid=71285
Electronics Forum | Fri Jan 15 16:55:03 EST 1999 | Steve Gregory
Hey Ya' Chrys!! One other thing I can think of when it comes to looking at FAB vendors to rate how good they are, might be something that you may not be too concerned with (depending on the product you build), is their scoring capability. If yo
Electronics Forum | Sun Jan 17 19:24:31 EST 1999 | Wayne Bracy
hey Steve Who's brush roller conveyor is that? Wayne | Hey Ya' Chrys!! | | One other thing I can think of when it comes to looking at FAB vendors to rate how good they are, might be something that you may not be too concerned with (dependin
Electronics Forum | Mon Mar 03 05:35:21 EST 2003 | Kelly
We just had this issue a couple months ago with a single sided FR-4 board which was scored. We found that the design was a factor but also the depth of the v-score. Since then we have re-designed the part further away from the score line. At the same
.gif)
