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 | Thu Sep 23 23:34:47 EDT 1999 | JAX
| Is there a standard rule/guide for the orientation of pcb's in a panel for panelised board (specially for routed panel). | i often get this question from peeps here and i kept telling them that it depends on how it affects the process. | thanks and
Electronics Forum | Thu Mar 14 09:07:26 EST 2002 | cfraser
I can not tell you what the actual stress limits are. I can tell you that de-paneling PCB's by hand is a very poor choice. I have seen numerous accounts of cracked caps, resistors, and LED�s due to incorrect de-paneling procedures. I would recommend
Electronics Forum | Mon Jul 08 09:52:37 EDT 2002 | gdstanton
Folks, Looking for some feedback from anyone who has had experience with panelized or palletized CCAs, or anyone interesting on commenting, where interconnects were used to facilited a "gang" incircuit and functional test. We are considering implem
Electronics Forum | Sat Feb 14 12:25:37 EST 2004 | I ramos
I populate several thin panels (0.032")using a > Samsung S-2000 P-N-P machine. With panel sizes > of 8" by 10", it is very difficult to clamp the > panels into the machine with deflection and > bowing. Also, the Samsung makes it very difficult
Electronics Forum | Thu Mar 30 08:38:58 EST 2006 | Dan
We have this panel that is Gold Flash. Am I correct in assuming this is technically a lead-free panel then? We are running a WS paste, and the QFN28 has balls of solder instead of a fillet. My Max temp is 216, and the TAL was between 52-57 secs with
Electronics Forum | Tue May 30 17:06:13 EDT 2006 | Board House
Hi Steve, I would say that 98 % of score shops do them dry, When the product gets back to the board house they would run the panel through a rinse dryer to get the score dust off of the Panel, Most Score machines have Vacuums built into the cutter h
Electronics Forum | Thu Oct 11 16:26:40 EDT 2007 | jseagle
Have you created block offsets for each board in the panel? We have rotated baords in panels but have not had to use block fiducials, we just use board fids. We place 0402s and 16mil fine pitch on multiple boards in a panel with boards rotated 180
Electronics Forum | Fri Oct 12 13:10:27 EDT 2007 | jseagle
We always do block conversion and have never had a problem. Is there a problem with the accuracy of your PCBs from the vendor? If you can get a panel placed correctly the next panels should also place correctly. I just created a 2x8 panel with hal
Electronics Forum | Mon Mar 10 20:14:20 EDT 2008 | davef
We'd be unhappy with features that are not in copper that is at the same level as the component pads, because of difficulties the fabricator would have in maintaining registration between the copper pads and the ink used for the features not in coppe
