Electronics Forum | Thu Feb 12 16:42:33 EST 2015 | hegemon
I can only speak for Mirtec and Yestech AOI for SMT Solder Inspection. We do use Koh-Young AOI for Solder Paste Inspection. As usual ,you need to identify exactly what it is you are trying to achieve with your AOI, if you are just trying to fill a
Electronics Forum | Fri Jan 05 12:01:26 EST 2001 | Jim M
I've been involved with no-clean flux and conformal coat in the past.It has been my experience that the amount of no-clean flux used is proportionate to how well the conformal coat adheres to the boards.No clean paste did not affect adhesion. The co
Electronics Forum | Wed May 27 16:02:32 EDT 1998 | Chrys
| We recently made the switch to no-clean and the wurface mount is turning out beautifully. However, the wave solder process continues to put up a fight; we are getting a white residue on the surface of the PCB. The residue is not localized to
Electronics Forum | Fri Apr 26 10:42:28 EDT 2002 | Jim M.
I worked for a telecom company that had sites in the deserts, jungles, mountains and regular built up area's. All boards were built using Aim 291/293 No clean solder paste. (all boards built to Bellcore standard) The boards were coated with Dymax ur
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 | Sat Jan 06 10:27:07 EST 2001 | Dave F
This is a very timely topic, as we drift [buffeted by the combined wind of everyone down-stream in the supply chain ] on waves carrying all of us from the land of lead to the land of no-lead. I want to say there was a recent trade journal article pu
Electronics Forum | Fri Mar 21 15:51:23 EDT 2008 | g2garyg2
Thought I would reply and try to assist. PROMATION, my company, also manufactures Diode Laser soldering systems but with this stated we also manufacturer iron tip systems, soft beam systems and hot air solutions. The reasons are simple. Diode Laser
Electronics Forum | Wed Aug 09 22:11:46 EDT 2000 | Dave F
Mark: The best routing of test vias for BGAs is to keep them far away from the device. We route test pads for the outer two rows of balls and use vias as test pads for the inner rows of balls. Your bottom-side layout is fine. Yes, on the top-side
Electronics Forum | Mon Nov 08 09:45:29 EST 1999 | John Burris
Having a big problem waving these puppies, hope someone can help. I've got an 8 pin mini-din connector (like a PS/2 connector with two more pins) that has two mounting pins on each side. During wave, at least half the lot has shorts from the ground p
Electronics Forum | Tue Apr 07 10:01:04 EDT 1998 | Steve A
| Good Morning everyone. Per repeated suggestions I have been reading back issues of SMT and Circuits Assembly magazines. I have just read an article concerning selective wave soldering which I understand is to be used when active SMTcomponents are
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