Electronics Forum | Wed Apr 29 17:43:14 EDT 2009 | smt_guy
I have a Product with 2 Different PCB Fiducial allocation in the Design. It has 4 Fine Pitch components. The first PCB DO NOT have Fiducial Mark on the board itself BUT has Fiducial on the Break-OFF Tabs. The second PCB has no Break-Off Tab but has f
Electronics Forum | Wed Feb 22 20:33:25 EST 2006 | davef
Here's your design rules: * IPC-2221 * IPC-2222 Bonus is that they include the works, not just break-away tabs
Electronics Forum | Wed Dec 02 14:33:12 EST 1998 | fuji god
| Our CP feeder take up reels often break,The glue in tabs | are a pain and replacement is expensive.Any solution? | Be sure that you are using the correct take up wheel with the correct feeder. There are two distinct types of take up wheels, one
Electronics Forum | Mon Jun 21 12:02:36 EDT 2010 | roland_grenier
check your de-panelling process if you are using break-out tabs or V scoring.
Electronics Forum | Tue May 18 12:01:29 EDT 2010 | davef
We throw the break-off tabs in the scrap board bin. If your tabs have metal content, metals recycling firms will probably take them. Most tabs have no metal content.
Electronics Forum | Tue Jun 03 15:43:12 EDT 2003 | Randy Holman
I'm trying to determine the best panelization technique, but have been unfruitful in my internet search for more information. I'm trying to determine the advantages and disadvantages of using either V-scoring or tab-routing (break-away tabs), but ha
Electronics Forum | Wed Aug 20 08:16:10 EDT 2008 | grics
Chunks... You are pretty damn awesome! Anyways, in regards to the original thread, we do get good boards from china as well, but we have had issues with stack-up tolerances and even mouse bite (drilled break away) tabs. Not to long ago, we left t
Electronics Forum | Fri Apr 15 11:12:30 EDT 2016 | joelperez
Thanks Dave for the reply. I understand there is + and - to each process. We have been doing v-score for a long time and for the most part it has work for us. As PCAs become more dense and components are squeezed to use most of the PCB space, it now
Electronics Forum | Thu Apr 14 14:16:22 EDT 2016 | joelperez
Has anyone use both methods of depaneling on PCB breaktabs? meaning v-score at the edge of the pcb and mouse bites on the opposite side of the tab (break out panel)? Thanks
Electronics Forum | Mon Nov 18 20:30:39 EST 2019 | alanyang
The chip resistors are placed on the edge of the board, but the board has no or enough waste tabs. When de-panelizing, the bits may contact and break them. You can use a smt carrier, or add waste tabs in your next assembly manufacturing.
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