Electronics Forum: cost and per and solder-joint (Page 3 of 6)

Re: BGAs and vapor phase

Electronics Forum | Tue Jul 20 05:29:14 EDT 1999 | Wolfgang Busko

| | | | | | | | Hi, SMTASSY | | | | | | that�s what we do, soldering our double-sided-finepitch-BGA-and all-the-other-stuff-boards in vapourphase because it�s the only thing we have. | | | First, we do not do real series produktion, only prototypi

SMT Solder paste and wave flux evaluation

Electronics Forum | Tue Feb 01 09:53:37 EST 2005 | Howard Sommerfeld

I also have a spreadsheet tool for comparative analysis using criterion weighted scoring. It can be used to analyze any decision, and helps groups reach consensus on why a particular alternative is the way to go. As final steps you can also consider

Re: Ionic testing and No-Clean flux

Electronics Forum | Mon Feb 07 11:05:50 EST 2000 | Graham Naisbitt

Dave You are so right about that point. I still use some cost models we ran up some 5 years ago. I took one to a customer and showed them that they could make $400K more PROFIT PER YEAR running OA v No-Clean. Their response? Well, we don't believe

First time Pick and Place Machine

Electronics Forum | Tue Jul 18 11:16:33 EDT 2017 | svfeingold

Found it, it appears to be 15mm. I received a reply from K&S (Kulicke & Soffa) who support the Assembleon machines. They say they do offer full support and training. The support offer is $7,500 per machine for the first year, including: * Annual a

Re: help with LEDs and reflow

Electronics Forum | Thu Aug 12 00:02:29 EDT 1999 | dean

| We currently have 32 LEDs per board and are looking to change the LED from a gull wing package to another package. (possibly a chip type package). I have heard that some cases and LEDs do not like reflow. This part is not cost effective to have to

0402 tombstoning and dewetting on QFP256 trade-off

Electronics Forum | Fri Mar 06 10:46:35 EST 2009 | davef

First, we agree with Loco that your QFP is nonwetting, rather than dewetting. Your sceen-shots look like ol' timey SnPb paste recipes. Turn-up the heaterometer dial. Second, on nitrogen: * We kinda think your O2 needs to be around 100ppm with 99.99%

Your opinion about RoHS and WEEE ?

Electronics Forum | Wed Jan 12 06:04:58 EST 2005 | rlackey

Hi Patrick, I see what you're all are saying, and can understand how you come to that conclusion, however I would disagree with the protectionism arguement. Most of the electronics assemblies in Europe come in from China, Taiwan, Malaysia etc, (T

Touch-up and inspection of visual defects

Electronics Forum | Wed Apr 27 11:43:32 EDT 2005 | patrickbruneel

Hi Daan, What we did in the time was pareto analyses on all board designs to determine the critical areas (mainly design errors) and only inspect those specific problem areas. Every batch had a copy of the PC board with problem areas marked and only

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Mon Jun 08 14:52:16 EDT 1998 | Gary Simbulan

| Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. | First the caps. We stil

First time Pick and Place Machine

Electronics Forum | Tue May 23 02:33:38 EDT 2017 | tsvetan

When you buy pick and place machine there are few things to consider: 1. Always buy fastest and greatest machine which you can afford, faster machines has lower cost per placed components and you have room for your business to grow. 2. Always buy m


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