Electronics Forum | Tue May 10 14:27:14 EDT 2005 | amejia
The holes on the circuit board which need to be covered are very small and it is more time consuming to cut to size and place with kapton tape. Thanks for the feedback.
Electronics Forum | Tue May 10 17:50:08 EDT 2005 | davef
Consider: * Changing your temporary solder resist [TSR] to a light cure. * Contracting with your board fabricator to apply the TSR. * Gaining better thickness control of your application process by silk screening the current TSR. * Forcing more air c
Electronics Forum | Thu May 12 08:24:05 EDT 2005 | patrickbruneel
Amejia, If your application is strictly conformal coating and no heat is applied to the board, the product seal and peel would be the solution see link http://www.interfluxusa.com/misc.html This product solidifies immediately on cooling The only dra
Electronics Forum | Thu May 12 14:52:13 EDT 2005 | amejia
Hi Patrick, I checked out the link and I think that just might be crazy enough to work. I'll have to research it a little bit more, but I think this would be the answer. Thanks a lot to everyone for all your help and suggestions.
Electronics Forum | Wed Jun 22 08:13:28 EDT 2005 | davef
Use an epoxy to repair the solder mask. Sources are: * http://www.circuittechctr.com/index.shtml * http://www.engineeringlab.com/baseboard.html
Electronics Forum | Thu Jun 30 13:49:36 EDT 2005 | John
I had the same incident before, and like GS pointed out, the degassing from the via under the component was responsible. The via was covered with solder mask, but it burst open during the reflow.
Electronics Forum | Tue Aug 15 17:00:52 EDT 2006 | Board House
Bake your solder mask and then solder coat. If you are going to put an immersion finish like Osp, gold, tin or silver you would have to do a Micro etch to clean the copper prior to placing the surface finish. Regards, Board House
Electronics Forum | Mon Aug 08 21:34:44 EDT 2005 | davef
Jim Can you be more specific? What's going "yellow / beige" on you? * Laminate * Solder mask * Legend
Electronics Forum | Mon Aug 08 22:40:49 EDT 2005 | davef
Jim Can you be more specific? What's going "yellowish" on you? * Laminate * Solder mask * Legend
Electronics Forum | Wed Aug 17 17:41:58 EDT 2005 | Kris
What is the surface finish of the board ? Some flux are known to react with certain type of board chemistry. Have you verified the compatibility of your solder mask and flux ?
