Electronics Forum | Fri Jul 18 15:25:19 EDT 2014 | davef
The presence of agitation at an air / solution interface and a foaming agent causes foaming. Most water soluble fluxes contain surficants. Surficants are foaming agents. First, it's likely this foaming is caused by poor control of the temperature of
Electronics Forum | Tue Feb 21 03:52:33 EST 2017 | pcbcart
Hi rezaee, Spoiltforchoice answered your questions based on the equipment & investment required during the PCB manufacturing process. Well, running a PCB Factory also involves equipment maintain fee, material fee, production cost (including quality c
Electronics Forum | Sun Feb 05 17:44:47 EST 2017 | spoiltforchoice
Printer->Paste Inspection(which might be a feature of the printer)->High speed placer (for all the little parts)->Accurate Placer(for your BGA Processor,RAM,eMMC and big things that don't fit in the high speed)->Reflow oven->AOI->PCB stacker All of t
Electronics Forum | Fri Sep 28 00:50:40 EDT 2018 | benny
How much is the exposure tolerance for PCB auto dry film?
Electronics Forum | Fri Feb 15 11:58:55 EST 2008 | rkeck
We are looking at an Omni Flow 5 Oven and do not have much information on it. We do know it has a 3" cabinet vent and a 6" vent near the center on the top. If anyone has knowledge of this oven, and has any suggestions or info, we would appreciate
Electronics Forum | Mon Dec 11 14:30:46 EST 2023 | proy
We all know that purity of nitrogen is critical for selective soldering. When it comes to wave solder- how much or what percentage reduction in oxygen is enough to make a difference in 1) at least reducing dross buildup and 2) being anble to cut ba
Electronics Forum | Sat Sep 29 04:55:49 EDT 2018 | sanneyyu
for pattern position with +/-2mil tolerance, pattern width may minus 0.5mil max with the traditional auto exposure.etching tolerance determined by the base copper foil.
Electronics Forum | Fri Feb 15 15:55:58 EST 2008 | pjc
This is from the OmniFlo 5 Engineering data sheet: EXHAUST SPECIFICATIONS: STANDARD AIR OPERATION: - Load-end: 150 cfm (255 m3/hr) at the 4� (102 mm) stack (minimum requirement) - Unload-end: 300 cfm (510 m3/hr) at the 4� (102 mm) stack (minimum req
Electronics Forum | Fri Sep 28 02:48:46 EDT 2018 | teresat2
Principle A layer of photosensitive material (photosensitive oil or dry film) is applied to the copper foil on the board surface, and PCB manufacturer should be use the position is exposed by black film, This applies to most PCB factories, especially
Electronics Forum | Tue May 11 16:27:12 EDT 2004 | davef
What is the problem with "too much residue"? How much residue is acceptable?
