Electronics Forum | Wed Mar 14 19:32:04 EDT 2012 | swag
You're not clear if you intend to reclaim and re-use the paste from the stencil or not. If not, then you should go to cartridges with an air gun or modify a caulking gun for dispensing paste from cartridges. The paste will last a long time.
Electronics Forum | Wed Mar 14 16:10:38 EDT 2012 | cobham1
We need to develop a method of putting solder paste on a stencil then putting the unused part back into the refrig. Reason we are thinking of this method is because we only run circuit boards twice a week. I dont want to waste entire jar of paste bec
Electronics Forum | Wed Apr 22 15:50:24 EDT 2009 | emilioescatel
Hi: I would like to know their opinion about the critical variables that I need to control in a screenprinter(solder paste aplication on PCBs) process and how I can control them. Thanks.
Electronics Forum | Thu Apr 23 21:07:09 EDT 2009 | luismolinero
Emilio: Several factors you need to take into account and your process parameters will depend on: Solder Alloy, Is there any Fine Pitch?; BGA?; Smaller chip size?. Tipically you should go for controls in: Solder Temperature and viscosity; blade and s
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 | Fri Nov 11 04:40:18 EST 2005 | pavel_murtishev
Good day, First of all used solder paste should be placed in special container. It should be kept separately from �fresh� solder paste from the same jar. Limit paste usage period after opening the jar according to manufacturer�s specification. When
Electronics Forum | Mon Aug 31 11:06:20 EDT 2009 | cyber_wolf
How do you make the decision "when to throw it out ?"
Electronics Forum | Fri Nov 11 05:07:27 EST 2005 | pavel_murtishev
P.S. If you�ll have further questions you can write e-mail to me on Russian Language. I suspect that you know it :)
Electronics Forum | Mon Aug 31 11:27:23 EDT 2009 | davef
Señor Tech: While you're waiting for others to reply, search the fine SMTnet Archives to find threads like: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=54268
Electronics Forum | Thu Nov 10 14:58:16 EST 2005 | Karkanov
Hi, I had a question from our ISO guy asking me how I know that the paste we use is in good condition? The problem is that he saw our operator put some old paste back in a empty jar to reuse it the next day. So his question is how do you know the
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