Electronics Forum | Fri Jul 28 14:34:13 EDT 2000 | Gary Simbulan
Belive it or not, these boards were run through a Centech batch mode Vapor Phase machine. Single stage top side IR preheat. Vapor temp 218 C. Solder paste is an SN62 RMA.The boards were FR4 8 layer w/ solder mask, fairly conventional as might be e
Electronics Forum | Fri Jun 04 08:25:06 EDT 2004 | Cal
OK I am game and will put some input here...I do like the Samsung machines for the price and they are easy to program. Another company you may want to look at is Essemtec. ESSEMTEC USA Glasboro, NJ 08028-1499 Steve Pollock Tel. 1/856 218 1131 Fax 1/
Electronics Forum | Thu May 25 10:55:21 EDT 2006 | Chunks
Loctite makes a product called MP218 that works well with mixed alloys.
Electronics Forum | Mon Jun 27 10:45:31 EDT 2005 | franciscoioc
Thank's for the information Bob. I have another question, at the moment my peak reflow is at 218c, this means I am above the 210c a lot of companies run off. If I am building boards using SN63/37 solder paste with lead on my process, and using lead f
Electronics Forum | Thu Mar 12 06:37:48 EDT 2009 | gregoryyork
I agree you are too cold for the profile get it up to 230C and possibly allow it to dwell a little longer in preheat as opposed to pushing up the reflow zone only. Sn90/Pb10 melts at 220C so 2C hotter than your profile so you are reliant on it alloyi
Electronics Forum | Mon Jun 27 14:20:57 EDT 2005 | Bob R.
If you visually inspect the solder joints of the first dozen or so boards with the Pb free parts and you're meeting workmanship standards then I wouldn't worry about it. When we started getting the first barrage of Pb free parts a couple years ago w
Electronics Forum | Tue Jun 01 19:25:19 EDT 2004 | Ken
...oops part 2: I will assume a sac 350 ball??? 217-218C this will completely reflow the ball and form a "normalized" joint with a collapsed structure.
Electronics Forum | Wed Feb 01 07:32:05 EST 2006 | Chunks
Try an intermediate paste like Loctite/Henkle 218. It's design is to be used in a mixed lead/lead-free process.
Electronics Forum | Tue Apr 06 13:11:22 EDT 1999 | Mike Konrad
I would recommend the following chemistries: Zestron Vigon SC200... Good but very $$$$ (703) 589-1198 Vertex (sold by Petrofirm and Alpha Metals)... Won't last as long as Zestron but must less $$$ (904) 261-8286 Kyzen... Also very good (800) 84
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