Electronics Forum | Mon Apr 23 09:37:20 EDT 2007 | davepick
Assuming you are going to build using a Leaded part on a Lead Free Process - beware of Weak Joints. I saw this at a large Multinational company - They had secondary reflow on a Top Side QFP when the PCB went over the wave. We did pull strength tests
Electronics Forum | Fri Apr 03 22:08:48 EDT 2015 | rmartini
My company provides high reliability assembly. http://www.pat-inc.com Let me know if I can assist with your requirements.
Electronics Forum | Fri Jun 14 14:30:36 EDT 2002 | davef
Assuming you are talking about solderable surfaces: People specify various materials to protect the solderability of the pads on the board. Gold, actually, Electroless Nickel - Immersion Gold [ENIG], is popular. * Board fabricators like it because
Electronics Forum | Mon Aug 07 09:58:41 EDT 2006 | nodlac
Davef's link is a great one. Mine pales but may be helpful... - This one is from Georgia Tech on Yield... http://www.cbar.gatech.edu/about/publications/Analysis%20of%20Factors%20that%20Affect%20Yield%20in%20SMT%20Assembly.pdf - http://www.cbar.marc
Electronics Forum | Mon Jul 31 01:24:28 EDT 2006 | fastek
If you ask me, these were the two issues that contributed the most to the decline in PCB Assembly Manufacturing in the US...for that matter the electronics industry in general. 1) The obsession of management to please shareholders which was driven f
Electronics Forum | Mon Jul 01 09:31:33 EDT 2013 | emeto
I know Juki have some software for optimization but you have to purchase it. From experience though I don't find Software as the strong part of Juki machines.
Electronics Forum | Mon Sep 24 06:12:23 EDT 2012 | weyes
About my company Shenzhen flytop technology co.,ltd is a professional PCB and PCBA manufacturer in china. We have been manufacturing PCB and offer assembly services with component supplying for client around the world over 10 years. Now we have
Electronics Forum | Wed Jun 02 09:21:34 EDT 1999 | Dan Burnikel
Hello all I have a question concerning whether or not there is any special requirements to follow for assembly of a Polyimide PCB card. The customer has the following information on there documentation but since we have never built anything with Pol
Electronics Forum | Wed Sep 20 12:43:40 EDT 2000 | rcroteau
RF pcb is all gold with no typical land patterns and multiple surface mount components sharing the same pad. IPC-610-B doesn't speak to inspection criteria. The problems I'm seeing are, insufficient solder, skewed components. Some of the pads have
Electronics Forum | Tue Jan 09 14:15:43 EST 2018 | tozitom
Hi SMTnet, I'm newbie here and searching for information on a pcb reconvertion. So in order to reduce costs on a small pcb+ componentes+assembly I need your experience on assembling only SMT components vs SMT+TH; the point is actually my PCB has abou
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