Electronics Forum | Thu Mar 20 10:57:28 EDT 2008 | patrickbruneel
In addition to Dave�s comments RE: Stands for RESIN (purified or modified rosin) No resin can be cleaned with pure DI water (requires saponification). L0: Stand for halide free activation which can safely be left on the boards. To my knowledge all
Electronics Forum | Sat Feb 19 10:27:38 EST 2011 | kahrpr
Just a thought. What is the real shelf life of the past? Do manufactures low ball the self life to sell more paste. If the past is perfectly good one day before the expiration date is it still bad one day after I doubt it. Right or wrong I have seen
Electronics Forum | Tue Sep 22 06:07:02 EDT 1998 | jacqueline coia
need advice to point me in the correct direction for solution to the problem of unsoldered joints which look soldered under normal visual inspection, but when pull strength test is performed the leads are coming away from pad, no strong intermetallic
Electronics Forum | Wed Jan 05 17:56:30 EST 2011 | ppcbs
I am looking for a No-clean or water soluble solder paste, Sn63/Pb37 alloy, 15 - 25 microns (T5). I need to print with a 4.8 mil stencil opening. Does anyone know where I can get 250 to 500 grams in one week or less?
Electronics Forum | Thu Feb 27 13:50:55 EST 2003 | Matt Kehoe
We use an Aqueous Technologies Millennium III closed loop system. The footprint is no more than 12-13 feet. We wash water soluble solder paste residue with excellent results however, due to the nature of our solid solder deposit process, we are washi
Electronics Forum | Fri Aug 19 06:49:27 EDT 2011 | leadthree
I got this MQFP-144 and the soldering looks always very flimsy. I think I use a suitable leaded paste (water-soluble) and the stencil thickness is also OK. The IC on the image looks a bit shifted, that's not the problem. The problem is rather that
Electronics Forum | Fri Jan 04 06:28:27 EST 2019 | ameenullakhan
Hi, We are observing solder joint discoloration ( yellow color appearance ) in one of assembly after secondary reflow run. Please provide your valuable feedback. Solder paste : water soluble lead free Alloy : SAC305 Flux : ORM1. Please provide v
Electronics Forum | Mon Mar 07 09:23:25 EST 2016 | rgduval
We've had our My500 for about four months now, and couldn't be happier. We are a super-high-mix, super-low-volume shop, and the flexibility provided by the 500 over stencils is stunning. So, you buy 5-10 stencils a week? That's 260-520 stencils a
Electronics Forum | Tue Jun 20 10:26:07 EDT 2006 | samir
Chunks, I used to work in power electronics, and we had this design engineer who used to "blow moisture" on the high-impedance circuit and test for cleanliness. We were water washing in a OA-Water Soluble environment. He was convinced that there w
Electronics Forum | Tue Sep 18 10:22:22 EDT 2001 | jschake
Paste Flux / Reflow: Our experiments indicated that the combination of no-clean solder paste and air forced convection reflow produced the fewest tombstone defects, followed by water-soluble paste reflowed in air, and most tombstones occurring with
