Q11: We are using a “No-Clean” assembly process. Do I still need to clean my boards prior to the application of a Conformal Coating?

There are a wide variety of “No-Clean” products on the market and unfortunately not all are of equal quality. Therefore, HumiSeal strongly recommends checking the compatibility of your “No-Clean” process with any Conformal Coating prior to starting production. Additional information about cleaning requirements can be obtained from the IPC at www.ipc.org, by reviewing HumiSeal´s Conformal Coating Handbook and by checking for any technical papers on this website that may pertain to cleaning. However for maximum long term reliability, the best practice may be to follow the old adage “When in doubt – CLEAN.

Monday, 12th January 2009