Electronics Forum | Mon Dec 10 04:15:01 EST 2001 | Beny
Thanks for your advise Now I don't found Non-wetting defect at TIN COATED 0603 after I had increased peak temp and Time above 183 C. At film caps, I still found Non-wetting in high rate at film chip size 2416. I using PANASONIC's part with identif
Electronics Forum | Mon Mar 16 01:06:25 EST 1998 | Victor Ng
Dear all, Recently I have a problem of non-wetting at our wave soldering process. It appears only on the SMT pads for the chip components (at the solder side) of the HASL PCB. With all the same parameters on the wave soldering machine, i
Electronics Forum | Wed May 18 14:58:05 EDT 2005 | splice
Hi, I am having some PTH non wetting issues. Setup and chronology of events is explained: Set Up; Part: 1 MM pitch connector 378 pins Solder: Kester Ultra Pure 63/37 solder Pot; 250 C pre heat; Peak 94C top side Flux: Qualitek 775, Fluxer: foam T
Electronics Forum | Fri Nov 12 05:14:42 EST 1999 | S L CHANG
We are currently cleaning solder paste (TAMURA SQ-1030FP) from stencil using an ultrasonic stencil cleaner with solvent (HYSPER-Non CFC). The process cycle time is 30 sec. cleaning in 1st ultrasonic tank and another 30sec. cleaning in 2nd ultrasonic
Electronics Forum | Thu Nov 26 06:05:32 EST 1998 | Earl Moon
| Certain board designs require the unavoidable use of non-plated holes and slots. Presently, this requires a trip back to the drill house to open up the aforementioned holes, to remove the unwanted plating. In situations requiring non-plated holes a
Electronics Forum | Thu Mar 25 15:01:45 EST 2004 | patrickbruneel
Why are you guys not simply switching to No-Residue?? Residue free soldering is not a dream, it is a reality and is succesfully implemented for over a decade. I am the founder of no-residue technology, a technology developed to effectively compete w
Electronics Forum | Mon Aug 09 02:40:25 EDT 2004 | abraham
We find that the component industry has migrated to lead free components whereas our process is still not leadfree. We receive components from suppliers of which some are lead free and others are not. We populate both types of components on the same
Electronics Forum | Wed Mar 02 05:14:07 EST 2005 | ABHI
Guys, Solder paste height worries all of us as we encounter the non wets after reflow. More so in fine pitch QFP's. The non wets are not always caused by solder paste height. Many other contributors. Even the pad geometry on te board can contribute t
Electronics Forum | Mon Apr 02 09:24:16 EDT 2007 | ed_faranda
I do this ALL the time, and it is pretty much transparent to the process. We have done shake, burn in, and functional tests with our products and we didn't have any issues what so ever. We have had a RoHS complient process for well over 18 months n
Electronics Forum | Fri Jul 13 16:52:24 EDT 2007 | jmelson
warning - not all stainless steels are non-magnetic! Quite a few alloys are magnetic, some as highly magnetic as ordinary steel. One quick test is to demagnetize the jaws. If you can find one of the old-style Weller soldering guns with the copper
