Electronics Forum | Tue May 25 18:08:19 EDT 2021 | scarittagle
A certain degree of cleanliness is needed in SMT manufacturing environment but not as overkill as place it in a "clean room" environment... Yes, dust could cause defect on PCBAs (and there are research papers about it too) but onl
Electronics Forum | Thu Jun 08 09:26:26 EDT 2023 | frankchan
placement> (curing)> reflow soldering> cleaning> inspection> rework SMT production process Surface mount process a. Single-sided assembly: (All surface-mount components are on one side of the PCB) Incoming inspection-solder paste stirring-screen prin
Electronics Forum | Thu Oct 12 21:32:12 EDT 2023 | seonr
Hey Rob, I am the designer and manufacturer of my own products - and I clean every product that leaves my premises because I hate receiving products with flux residue on them, so I wont ship products that way - It's my own standard I imposed on myse
Electronics Forum | Thu Mar 09 20:48:30 EST 2000 | Dave F
Van Hoang: Welcome to SMTnet!!!! Regarding your problems: 1. Cleaning glue: Check the SMTnet archives. For instance, a recent thread was: cleaning glue off of stencils - pr 13:41:43 03/03/2000 2. Bridging on the wave: Bridging on the wave h
Electronics Forum | Fri Feb 25 14:34:44 EST 2000 | Ioan
Larry, the best paste thinner is the one that your paste supplier recommends. You should check with him. We have no problems removing the no-clean paste with alcohol. If you want to give it a try, make sure you use IP alcohol, not alcohol based flux
Electronics Forum | Wed Oct 11 10:29:28 EDT 2000 | G. English
Try the following steps : FIRST CHECK THE ARCHIVE for further information, it WILL help you. Step One : What�s the chemical analysis of this white res? Obtain a sample. It could be tin, rosin, or something else??? Step Two : The fastest way I know
Electronics Forum | Thu Mar 09 20:48:30 EST 2000 | Dave F
Van Hoang: Welcome to SMTnet!!!! Regarding your problems: 1. Cleaning glue: Check the SMTnet archives. For instance, a recent thread was: cleaning glue off of stencils - pr 13:41:43 03/03/2000 2. Bridging on the wave: Bridging on the wave h
Electronics Forum | Fri Feb 25 14:34:44 EST 2000 | Ioan
Larry, the best paste thinner is the one that your paste supplier recommends. You should check with him. We have no problems removing the no-clean paste with alcohol. If you want to give it a try, make sure you use IP alcohol, not alcohol based flux
Electronics Forum | Thu Mar 15 17:19:12 EST 2001 | mparker
Are the tin/lead ratios compatible betweem HASL and wave solder? Probably are, just a remote possibility. Flux application is? bubbler, sprayer? Either way, are you getting good misting, coverage on those teeny 0.5mm test points? If not, then no
Electronics Forum | Thu Mar 22 16:35:06 EST 2001 | Steve
Deja vu! When I read your response I turned around to see if you standing behind me listening to our problem. We currently make about 50 different boards all using no-clean that have no problems, yet this newest boards has a couple of issues that eng
