Electronics Forum | Sat Oct 22 09:02:46 EDT 2011 | mojomatt
Yes it is used for PCB, I have used it in the Automotive Service Industry for many uses. Most popular as a Brake assembly cleaning agent. It is popular today due to its low FLASH POINT, unlike other solvents that contain Heptane, Xylene etc thease ha
Electronics Forum | Mon Aug 28 14:18:21 EDT 2006 | russ
Sounds like your PCBs are now white tin. Change this to another roHS compliant finish and see if prob goes away. You must get control of the materials that you are being asked to build. Your Customer needs your advice on surface finishes, they sho
Electronics Forum | Tue Oct 16 13:40:07 EDT 2012 | surajdn
and are there good chances of open contacts and solder errors? and are they cheap? (im talking about the manual pick and place machine) and yes... i also wanted to know what are skills i must master to be able to work with smt. and where can i lear
Electronics Forum | Mon Aug 07 09:04:09 EDT 2006 | molos21
Hi everyone, I am starting to use the lead free process and I had a few wetting problems (solder did not reach top side) at the wave soldering process once the pcb had passed our smt line (one heat pass). From what I understand, I have had a problem
Electronics Forum | Tue Apr 12 12:13:52 EDT 2005 | John S
We are moving into fine pitch components. 64 pin QFPs and the like. We've chosen an ENIG pcb finish to help with flatness of the pads, but the pcb vendor has asked for a thickness specification. Can anyone provide a recommendation? It seems like
Electronics Forum | Fri Sep 22 17:36:35 EDT 2006 | mika
A bunch of thanks guys, we will take this in consideration. BTW, we will not go for the v-grove in the panel (2x8 boards + the extra cut of areas). The board house recommended us to go for braces/hinges, since this thin pcb-panel could easily break w
Electronics Forum | Tue Oct 24 15:46:09 EDT 2006 | aj
Mark, The pcb manufacturer recommended we bake the boards , so we did. I even weighed a batch before and after and seen slight decrease possibly 0.1g in weight. However we still seen some delam after all this. I am confident our issue has nothing to
Electronics Forum | Sun Dec 01 09:52:11 EST 2019 | richardcargill
We just subcontract assemble boards, but have our preferred PCB supplier. If an existing board manufacture is transferred to them they often recommend change/ improvements which we have to get authorised from our customers. Although the boards may wo
Electronics Forum | Thu Mar 29 14:55:59 EDT 2007 | HOSS
Hello, I searched the forums and found little specific info on LGAs with interior lands. This is not a QFN with a center pad. This is a multi-row BGA without solderballs. I'm looking for recommendations on PCB land to part land ratio, stencil a
Electronics Forum | Mon Feb 08 20:18:39 EST 2010 | city4497s
Hi I'm looking for a auto mold machine for PCBA application in singapore, anyone have any recommendation. My PCB size is 160mmX42mmX0.6mm, the units are arrange in array form and there are about 12 ~ 20 unit per strip. the mold size is about 15mmX5m
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