Electronics Forum | Wed Apr 06 00:36:32 EDT 2005 | vinitverma
Hi, Well said Grant! I guess this margin on the component procurement is the largest contributor in the overall margin for big EMS companies who have global component sourcing and hence very competitive pricing for the same! As regards conversion co
Electronics Forum | Fri Apr 08 08:35:44 EDT 2005 | Grant
Hi, What are you doing for reflow. Sounds like a cheap MYDATA TP machine second hand might do the trick, but don't know if it could do 0201 though. You can get a fairly ok manual stencil printer that might do the trick. We had one that had a linear
Electronics Forum | Thu Jun 23 16:08:49 EDT 2005 | slthomas
It's interesting that your company was willing to buy enough machines to complete 4 lines, but isn't willing to buy enough parts for them to operate. That sort of reduces your 2-4 lines to a role of emergency spares locations, doesn't it? We experie
Electronics Forum | Wed Jun 22 13:00:12 EDT 2005 | slthomas
"His opinion was that you could never achieve 500cfm, even with a jet engine attached, as the outlet on the oven was too small..." I had that experience with a washer that blew steam out of the entrance. He said we'd collapse the pipe before we ever
Electronics Forum | Sun Feb 05 09:49:11 EST 2006 | Cmiller
We have been using ENIG for 8 years as our primary board finish. We have not seen any issues with tenting the vias. We have used a number of suppliers. The ENIG from China does not seem to solder quite as well in general but only had black pad from o
Electronics Forum | Wed Jan 24 10:08:36 EST 2007 | electronhose
Immersion Silver, ImAg, is becoming the finish of preference. This is due to it having similar process limits vs. SnPb HASL. There were some early concerns about shelf life, but new chemistries have extended finish shelf life to 12 months+. Many boar
Electronics Forum | Thu Mar 22 13:57:47 EDT 2007 | chris
I would recommend checking out the stereo microscopes from Vision Engineering (www.visioneng.com). We have used the older and newer style Mantis scopes and our assemblers love them as you can do rework in a very natural and comfortable seating posit
Electronics Forum | Fri Apr 27 12:51:07 EDT 2007 | Machine Designer
The trade imballance isn't even being talked about in Washington. But still I can't see why on a global scale only China can compete when it comes to making goods. Speaking of Washington cleaning house in congress sounds like good idea but truthful
Electronics Forum | Mon Aug 24 16:58:05 EDT 2009 | rgduval
Jack, Well, there's always doing it locally on the machine. There's also an old excel macro floating around that will help...it takes the x,y,theta information, and generates a pick and place program. However, we never had much luck with it here
Electronics Forum | Thu Oct 29 21:16:15 EDT 2009 | mah115
Fellows, We are considering getting an AOI machine to inspect boards that our vendors are giving us (we outsource the assembly of PCBAs). We have low volumes of boards, but every time a defect does slip by our human inspectors, it causes a lot of
