Electronics Forum | Tue May 06 22:54:08 EDT 2003 | davef
tommyg_fla. Sorry about being late getting back you. Surface-active species, such as Fe2+, Mn2+, NH4+, and H+, can be adsorbed onto solid phases [and transported by things as weird as bioturbation or advection not that they have anything to do with
Electronics Forum | Wed Jun 04 20:09:01 EDT 2003 | stefwitt
The tact time is determined by the slowest machine in the line. In your case it is 4.5 min. This is the time from the board leaving the output conveyor sensor to the next board leaving the sensor. The first machine, which finishes the job in 3 min. h
Electronics Forum | Thu Aug 21 21:05:39 EDT 2003 | Tom B
Dan, We, do alot of double reflow. Your right we typically see alot of the standards components, SOT's, SOIC's, Chip stuff. The largest we do with out adding epoxy is some 32pin PLCC's. We have several assemblies were were doing PLCC44's, Sockets
Electronics Forum | Tue Feb 24 09:52:14 EST 2004 | davef
First, two points about hole / barrel fill are: * A filled hole is an excellent indicator of the optimum process and optimum quality PCB. * The study that showed that holes need not be filled was paid for by the US Army and performed by Lockheed in
Electronics Forum | Wed Mar 24 21:51:23 EST 2004 | davef
Dreamy It sounds like you are having fun in your new job. Saponifier. Alkaline chemicals, added to water, that convert rosin/resin flux residues in the water to soluble soaps. Generally, saponifiers are better if used in an aggressive spray-in-ai
Electronics Forum | Tue Jul 27 06:04:16 EDT 2004 | cyber_wolf
Grant, I know of a couple places that throw their paste out at the end of the day. I have worked in SMT for over 15 years and we have never thrown paste out unless it was contaminated, or dried out. We have never had a problem. If you ask me, I would
Electronics Forum | Wed Dec 15 07:12:20 EST 2004 | vinitverma
Does Serge need bacons or turkeys?? None of them?? Then let him think about which machine suits his requirements! Throughput, flexibility, large board handling, output derating across board size variation and component size variation! Future proof -
Electronics Forum | Thu Jan 13 07:29:49 EST 2005 | Grant
Hi, It's both really, and we are doing higher volume of current products, but new products are increasing in component count, mostly passives. We have analog on our products, and this uses a lot of passives, plus each semiconductor needs decoupling
Electronics Forum | Mon May 23 10:53:32 EDT 2005 | HOSS
Eric, We also have a UPK 650C. Our machine was configured for N2 and using the ConTour nozzle. If you're using this nozzle without N2 you're creating tons of dross unnecessarily not to mention probably getting tons of icicling. We found out the h
Electronics Forum | Thu Jun 29 23:54:06 EDT 2006 | grantp
Hi, I think it's a good choice for a startup, and if your finding it's accurate enough. We only went Fuji because of our volume, and small errors were adding up, but if I was starting from nothing again it would be MYDATA because I could not afford
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