Electronics Forum | Thu Oct 06 12:18:31 EDT 2016 | davef
Looks like moisture bubbling out of the board. I doubt that your baking at 60*C for a half hour is going to do very much to dewet the board. 60*C is warm to the touch, that's it!!! Water boils at 100*C. 60*C is the temperature of a cup of Dunkin. Cr
Electronics Forum | Fri Oct 07 08:48:45 EDT 2016 | davef
Two things ... A friend in the contract coating business said: "... the board is not being baked out long enough, 30 min is certainly not long enough depending on how many layers this board is, as the vacuum (from the parylene process) is pulling t
Electronics Forum | Fri Oct 18 12:40:35 EDT 2013 | robertwillis
Back in the mists of time there were two papers on the use of Parylene Coating and the improved thermal cycling results in 1990. It was on LCCC then shortly after on BGA. Does anyone know of results of recent trials or have a copy of the BGA papers.
Electronics Forum | Mon Apr 26 15:10:46 EDT 2004 | pjc
Parylene coating is done in vacuum curing chambers. This process drives the material under components and into all nooks and crannies. There is nowhere on the board assembly that can escape from the material! I've only seen Parylene coating process u
Electronics Forum | Thu Apr 10 11:26:10 EDT 2003 | Lake
Does anyone have any experience with parylene coated BGA's. Can they be masked so parylene doesn't get underneath? How do you remove and replace? Is machining them off the only viable option? If so are there any special requirements /special fixturin
Electronics Forum | Thu Apr 10 11:26:18 EDT 2003 | Lake
Does anyone have any experience with parylene coated BGA's. Can they be masked so parylene doesn't get underneath? How do you remove and replace? Is machining them off the only viable option? If so are there any special requirements /special fixturin
Electronics Forum | Mon Apr 26 10:48:04 EDT 2004 | Sam
Hi Can any one tell me what the advantages/disadvantages of Parylene coating ? Also is it recommended this process be done in house or sub contracted? Thanks
Electronics Forum | Wed Aug 04 13:39:44 EDT 1999 | Dave Weihrauch
Has anyone out there tried to parylene coat plastic parts prior to soldering them to a pcb? I'm looking at several potential applications where fewer than 5% of my components on a pcb are plastic, yet from a reliability aspect (environmental conditio
Electronics Forum | Tue May 05 18:00:44 EDT 2009 | suepow
We recently started doing our own Parylene Coating on site. I am looking for some advise on the best way to remove the masking after coating. Is there a document anywhere that addresses this subject? Our fellow doing the coating had only about 2 we
Electronics Forum | Wed Jul 06 15:56:22 EDT 2011 | duso02
We do parylene coating and really frown upon using a UV additive. Technically, it's a contaminant to the parylene.
