Electronics Forum | Thu Jul 03 03:23:04 EDT 2003 | loz
I have been advised recently about pcb manufacturers, that somehow or other supply pcb's with contamination. Visually they are fine, but problems arise during SMT manufacture, ie solder balling, non-wetting on pads, and also during wave solder proces
Electronics Forum | Wed Jun 11 11:33:07 EDT 2003 | tt
We have been looking around at all of the various BGA visual inspection systems, (i.e. ERSAscopes like contraptions). It seems like the number of different manufacturer's of these types of systems has exploded in the past couple of years, and it lo
Electronics Forum | Fri Feb 25 02:30:32 EST 2011 | pkannan
Dstadem, Thanks for bringing your in valuable experience with the J STD 005 " Requirements of Solder Paste". I fully agree with you that the Solder Paste can be qualified for shelf life by doing simple viscosity test and visual inspection for coal
Electronics Forum | Sat Jan 09 12:31:42 EST 1999 | Steve Joy
| Any idea what the "industry standard" is for fall out on assembled PCB's? I realize that the controls put in place in your processes will effect your overall quality. But I'm trying for a general answer. On pre-tested assemblies, should you exp
Electronics Forum | Thu Jul 15 09:34:24 EDT 1999 | John Sims
I'm looking into vision inspection equipment to automatically inspect SMD placement and solder joint quality. Does anyone have any recommendations or know of any commonly used equipment? Do other manufacturers use vision systems at their inspection
Electronics Forum | Mon Feb 06 13:00:51 EST 2006 | amol_kane
Hi all, I just wave soldered 40 boards (20 if Imm Sn and 20 of Imm Ag) using SAC 305 (in this case the wave machine manufacturer (electrovert) suggested the alloy too). plan to carry out x-sectioning to see the results. overall, just from the visual
Electronics Forum | Mon Mar 21 15:21:46 EDT 2011 | dyoungquist
At incoming inspection we visually check the stencil against the gerber file (called up on the computer monitor) used to produce it. This is mostly to check that they mirrored the bottom side correctly although we check the top side as well. That i
Electronics Forum | Tue Apr 03 12:00:55 EDT 2001 | Steve
I am looking for standards that describe acceptance criteria for PCB's. Anyone.....anyone.....Buhler. My company is an OEM manufacturer and I want to know what to look for when we receive PCB's from our PCB fab vendor. Specifically, solderability an
Electronics Forum | Tue May 07 09:36:38 EDT 2002 | jax
Daniel, If you just plan on mounting chip components don't worry about getting an accurate measurement. The parts will vary in size, corrupting your accuracy measurements. If you are going to place leaded components you can probably get awa
Electronics Forum | Thu Jun 19 13:06:09 EDT 2003 | derelict
I am pretty happy with my Ersascope, they have been a little slow with software updates and with software questions that i have had. But my main reason that this has paid for itself is dealing with our non-local contract manufacturers, we have used t
