Electronics Forum | Tue Jan 31 12:19:29 EST 2017 | ttheis
We're looking to add conformal coating to some of our pcb's which range from 2x2" to around 6x6". I would like to use a coating material that is not nasty smelling requiring ventilation or filtration if possible. Are there conformal materials that ar
Electronics Forum | Fri Mar 16 10:04:41 EDT 2012 | davef
We'd repair a drop board like this. Here's what our old friend Jeff Ferry said is a published article ... When boards lose their edge: when the corner of a circuit board breaks or is damaged, the problem cannot be ignored by Jeff Ferry One of the m
Electronics Forum | Mon May 21 17:32:23 EDT 2001 | davef
I said: "Our electronic circuit board fabricators seal the boards in moisture barrier bags [MBB]. We discontinued the use of desiccant bags in these MBB because of concerns about the desiccant releasing materials that would affect the solderability
Electronics Forum | Thu Aug 09 09:05:09 EDT 2007 | davef
There are no requirements acceptance criteria for baking of board assemblies. What are your customer requirements? The common reasons people choose to bake PCB are to prevent: * Delamination of multilayer boards * Measles, particularly on double si
Electronics Forum | Thu Oct 26 13:56:08 EDT 2000 | ptvianc
Hello: Pre-baking laminates should only be performed:(1) to meet contractual agreements or (2) in response to an actual defect that can be traced to PWB water absortion. Besides the fact that a pre-bake is an enormous process "bottleneck," it also
Electronics Forum | Tue Oct 24 09:52:35 EDT 2006 | SWAG
We are having the exact same problem! We do about 6 or so ROHS SMT builds. 5 are fine now but we had problems with most initially and 1 is trouble still. All boards are same material, same PCB manufacturer. Initially, when the delam. problem occu
Electronics Forum | Thu Sep 30 21:37:44 EDT 1999 | Dreamsniper
| | Hi everyone, | | | | Greetings! | | | | I�ve got a 2-layered through-hole PCB�s having the following problems: | | | | Solder Mask peels after wave soldering at random locations and only at the bootom side of the PCB | | Insufficient Solder an
Electronics Forum | Tue Oct 27 11:30:57 EDT 2015 | atekcare
Didn't see if anyone responded to your question offline, but if you are still evaluating laser depanelers, we would like to help? Here are just a few key factors to consider. (1) what material are you cutting? (2) what is the material thickness (3)
Electronics Forum | Thu Jan 31 09:08:27 EST 2008 | glezfl36
Since the implementation of the ROHS process in our Company with the higher temp requirements, we had observed an increase in problems related to delamination in the PCB's. Actually we are using FR408 and Gracescore materials and are changing to a Ve
Electronics Forum | Thu Jan 13 12:47:03 EST 2000 | morris
Wolfgang: What is the mask material? What type of process/tools are required to remove it? Approximate cost per PCB?
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