Electronics Forum | Fri Feb 21 11:49:25 EST 2020 | SMTA-Tom
Tabs are generally faster to cut through vs a v-scored board. Cutting the V-scored boards with a saw is an option but it is not faster...it just decreases the potential damage that can happen when using a pizza cutter. Preferred method would be to us
Electronics Forum | Tue Feb 28 16:58:39 EST 2006 | PWH
Too fast heating/cooling rate in reflow (look at mfg's spec.). Z "overdrive" on pick and place or chipshooter though unlikely I would say. Depanelization method (bending a scored board to break it is tough on things). Bad PCB design - cap. too clo
Electronics Forum | Wed Nov 29 08:55:35 EST 2017 | capse
I represent Fancort Industries. We provide "pizza cutter" and horizontal opposing blade "guillotine" style v-score depanel equipment. The edge clearance requirements are 0.030" - 0.050" for the wheel cutter and down to 0.020" for the opposing blade e
Electronics Forum | Mon Nov 08 11:01:12 EST 1999 | Brian Larson
We are leaving 12-18 thousands material when scoring. Several components are cracking during depanelization. The pizza cutter machines out there are either too expensive or too slow to solve our problem. I am looking for a magical solution. In case
Electronics Forum | Mon Nov 08 19:10:10 EST 1999 | Brian W.
Oh boy, does that bring back memories!!!!! You are most likely breaking components when the board is flexed during separation. Any components perpendicular to the score are candidates for mechanical stress. We overcame the problem by making our ow
Electronics Forum | Wed Jul 15 13:33:56 EDT 1998 | Don Welling
I am looking for information on the amount of stress a component sees during the depaneling process. I am currently specifying a new piece of depaneling equipment and I have not found any studies that quantitatively compare the amount of stress diff
Electronics Forum | Mon Jun 12 17:32:17 EDT 2006 | flipit
Hi, A little off subject but I just finished a quick little experiment where I placed 0201 to 1206 and some ceramic resonators at specific distances off the scored edge. The distances from scored edge ranged from 0.025" on up at 0.025" increments.
Electronics Forum | Mon Jul 30 11:08:23 EDT 2007 | swag
I have a new contract with boards that have straight edges and are good for v-score breakout panel design. However, many of the traces are very close to the edge of the board so I am concerned that the traces could be damaged when we run them throug
Electronics Forum | Thu Nov 13 11:45:04 EST 2008 | pbarton
We have seen a similar problem. Turned out to be mechanical stress on the component caused by the method of location and clamping at ICT. Where is the component located on the assembly? Poorly adjusted clamping pillars on clamshell fixtures can cause
Electronics Forum | Tue Aug 10 15:19:09 EDT 2004 | davef
Hey Bob, turn DOWN the volume. Waint daff yano!!! On the surface of things, if you�ve been to a dozen board houses that have not been able to properly separate boards, we�d kinda be inclined to think it�s you and not them. [In your defense, we hav