Electronics Forum | Tue Jun 05 14:04:11 EDT 2007 | hussman
We have the same situation here. But generally it is the customer gives us a 1-up Gerber drawing and we need a multi-up or some form of breakaway to make the product. The way we achieve this is thru a Word document we call PCB Guidelines. We attac
Electronics Forum | Sat Jan 30 16:42:32 EST 2016 | davef
Many board fabs help their customer understand the importance of copper balance. Copper balance * http://www.multi-circuit-boards.eu/en/pcb-design-aid/copper-balance.html * http://electronics.stackexchange.com/questions/85633/what-is-copper-thiev
Electronics Forum | Wed Oct 10 13:49:12 EDT 2001 | stepheno
I recently started at a new company. They have a variety of bare PCB's and most have aprox. 20 variations. Maybe about 1/3 of each board on average are non-populated locations. They buy one stencil for each PCB but then use scotch tape to block of
Electronics Forum | Thu Oct 11 12:37:27 EDT 2007 | slthomas
We purchased a used machine and can't get the block fiducial function to work properly (PCB fids work fine). I can teach them and the machine will use them but the correction is worthless. We first tried it on a 2x2 panel where the top two boards wer
Electronics Forum | Mon Mar 29 17:55:39 EST 2004 | gregp
What is the importance of SMEMA compatability regarding height of the PCB during transport? Most machine manufacturers ignore this and simply give you blocks to put under the machine if you need them. My question is if all of your equipment was des
Electronics Forum | Tue Jun 01 15:42:33 EDT 2004 | James
We use them on our DEK printers. They have worked out very well. The only thing we had to do was make a push down bar so we could push all the pins down and lock them. This makes setting up the blocks much easier; board is fixtured, pins released
Electronics Forum | Wed Nov 21 06:07:20 EST 2018 | robl
Hi Prem, Voiding has lots of causes, but boiling off flux to quickly really doesn't help, so maybe a more gentle profile. Also you do not need to print a solid block of paste, you can print a window pain style pad to help the flux escape. Also, th
Electronics Forum | Mon Jun 07 10:52:04 EDT 1999 | Brian Wycoff
| | | | Where I can find some informations about repairing of SMT boards? | | | | | | | | Thanks | | | | | | | | Marcos | | | | | | | A first place to start is IPC's 7711 and 7721 encompasing repair, modification, and rework procedures. | | | |
Electronics Forum | Wed Jul 22 05:54:41 EDT 2015 | langkeauto2015
Hi, Tsvetan, sorry for your bad experience for Chinese brand PNP machine. For your doubt, pls refer to my comment:) Our pnp machine is special for led tube, led panel, led strip, RGB strip, and led display screen PCB, and real working speed feedbacke
Electronics Forum | Tue Jun 08 10:22:41 EDT 1999 | John Thorup
| Anyone know a independent PCB inspection of BGA (X-Ray). We have several test boards that need BGA inspection. For detailed analysis try X-Tek in Santa Clara, Ca. 408/486-9620 or you can rent the RTX from Glenbrook Technologies for $950 per week 2
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