Electronics Forum | Mon Jun 12 13:10:05 EDT 2006 | muse95
Why do they say to specify the depth of the score, rather than the thickness of the web? How does the scoring equipment work? Is it two blades that you can set the separation distance? Or is it one blade, that you have to run the board through twic
Electronics Forum | Mon Jun 12 16:33:39 EDT 2006 | muse95
Which spec is that in? I'm seeing web thicknesses of .015 or thinner being suggested for a .062 board, way thinner than 1/2 the board thickness.
Electronics Forum | Tue Jun 13 08:33:11 EDT 2006 | davef
IPC-2222, 5.3.1 defines the parameters of making scoring cuts and the tolerance of the cuts, but does not specify the cuts. Our spec for 0.062" thick FR-4 boards is: 0.018-0.024"
Electronics Forum | Sat Aug 29 18:12:25 EDT 2009 | gsala
V-Score, few interesting references http://www.vscore.biz/vsguide.html http://coretec-inc.org/files/Technology_Center/Scoring_Process.pdf regards
Electronics Forum | Tue Feb 16 12:44:05 EST 2010 | esoderberg
95%+ of my boards are small and therefore are panelized using the V-score technique. Getting a lot of resistor cracking even though the resistor is layed out to be perpendicular to the long board edge. What dimension should be used from the board e
Electronics Forum | Tue Feb 23 09:48:26 EST 2010 | dyoungquist
How are you sepatating your boards out of the panel? If you are flexing them to break the V-score, this could be what is causing the resistors to crack.
Electronics Forum | Tue Jun 14 17:36:09 EDT 2011 | davef
Travis H: Are both pads of the component the same distance [0.088"] from the edge of the board?
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 | Wed Jun 15 14:38:43 EDT 2011 | travishemen
Yes, both pads are the same distance from the edge. I also included a picture of a cracked part. Thanks,
Electronics Forum | Wed Jun 15 17:12:43 EDT 2011 | tombstonesmt
This might sound stupid but... We had a similar issue and the solution was depaneling the panel upside down. Take this advice at your own risk...
