261 v and score results

Electronics Forum: v and score (Page 2 of 27)

YesTech F1 AOI false calls and misses

Electronics Forum | Thu Apr 19 20:01:30 EDT 2012 | eadthem

some things to consider, Is there flux on the board. are there finger prints on the tops of parts. Is the board warped at the V score from reflow Is the board shifting in the machine during inspection. These are the issues we have had with our mir

v-scoring

Electronics Forum | Fri Jul 06 08:55:46 EDT 2001 | onset

Question, on a pc board that is .060 thick what should my v-score depth be? WE are currently using a v-score that leaves a remaining web of 15 thousandths is this adequate, or should we be going deeper?? thanks in advance

V-scoring vs. Tab-Routing

Electronics Forum | Tue Jun 03 16:45:30 EDT 2003 | swagner

I agree with the other posting about V-score but don't forget about a Wand punch if the application is high volume, also IPTE manufactures a cutting system that doesn't require any V-score, it just cuts the boards apart with a diamond wheel.

V-score cracking components

Electronics Forum | Wed Oct 26 16:47:17 EDT 2005 | jdengler

I have never heard of heating the board for separation. You may want to try some of the following. -Using a roller cutting type depaneler helps reduce the stress. -Using a combination of routing in areas with components near the edge and v-score th

Mechanical Delamination at de-panel

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

IPC-TM-650

Electronics Forum | Wed Jan 29 12:04:20 EST 2003 | Jacob Lacourse

Please ignore the v-score figure it did not come out the way I intended. The v-score is not uniform in that equal amounts of material are not removed from each side of the board.

V-score cracking components

Electronics Forum | Tue Nov 08 17:12:10 EST 2005 | Erik

I haven't heard of heating boards pre-depanel either. We have done extensive studies on cracking of ceramic caps close to V-scored edges and have decided to have our board vendors pre-rout any areas with caps close (