Electronics Forum | Sat Nov 08 07:05:12 EST 2008 | davef
Often, your solder paste supplier provides guideline on handling their solder paste. For instance: http://www.aimsolder.com/techarticles/tech%20sheet%20paste%20handling.pdf We have no relationship, nor receive benefit from the company referenced ab
Electronics Forum | Fri Jul 09 10:45:34 EDT 2004 | davef
Start at Dan Terstegge's excellent jump site: http://www.smtinfo.net/Db/_Pin%20In%20Paste%20Soldering.html
Electronics Forum | Tue Oct 09 08:30:22 EDT 2007 | davef
As a starting point, follow the guidance of your paste supplier: http://www.aimsolder.com/tds/WS%20353%20Sn62%20&%20Sn63%20Solder%20Paste.pdf
Electronics Forum | Tue Apr 19 09:35:16 EDT 2005 | davef
You should follow your solder paste supplier recommendations. Examples are: * http://www.aimsolder.com/techarticles/tech%20sheet%20paste%20handling.pdf * http://www.efdsolder.com/PDF/ EFD_-_Frequenty_Asked_Questions.pdf * http://www.ncsmq230.indiu
Electronics Forum | Tue Feb 13 16:28:17 EST 2007 | rob_thomas
There are solder pastes that seem to give you less voiding. Currently we are using Kester ,water soluble paste that gives us pretty good results on BGA's up to 0.5mm pitch. Stencil design was a challenge but we are getting consistent results . Here
Electronics Forum | Tue Dec 04 14:31:50 EST 2007 | davef
Search the fine SMTnet Archives for previous discussion. This technique has been called 'pin-in-paste,' 'paste-in-hole,' 'intrusive reflow,' 'alternative assembly and reflow technology' and who can remember all the other consultant buzz-words. Look a
Electronics Forum | Sun Apr 26 08:36:55 EDT 2009 | davef
First, in direct answer to your question, DOE printer setup variables (MPM): * Squeegee speed: 0.5 to 1.0 in/sec * Pressure (metal): 1lb/in of blade * Pressure (plastic): 1.6-3 lb/in Second, supprting earlier responses, most people monitor paste hei
Electronics Forum | Mon Aug 24 10:26:39 EDT 2015 | derrikf
I've recently pushed the company I work for to switch to a halogen-free solder that our supplier carries, Kester's NP 505 HR, prior we were using Kester NXG1. NP 505 HR performs great on the screen, we have a lot of down time in between prints (we d
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