Electronics Forum | Thu May 25 17:18:45 EDT 2000 | Boca
I have not done pin in paste in production quantites, but speculation is always a blast so; OA fluxes are active at room temperature, they grow 'fur' with humidity if not washed off, great stuff for soldering, nasty stuff for reliability (if not rem
Electronics Forum | Tue Jan 23 20:53:51 EST 2001 | davef
Sorry, not much help for me there. More information would be helpful. For instance: * Talk about the distribution of the problem, including a single lot or from various lots and over components and component types on the board * Tell us about the boa
Electronics Forum | Tue Jun 08 08:40:37 EDT 1999 | Wister
Hi,my master How to iron out such soldering bridge with below conditions: 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB 3.using spraying fluxer and no-clean fl
Electronics Forum | Tue Jun 08 08:38:15 EDT 1999 | Wister
Hi,my master How to iron out such soldering bridge with below conditions: 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB 3.using spraying fluxer and no-clean fl
Electronics Forum | Wed Jul 22 11:31:37 EDT 1998 | Russ Miculich
Yes, there is a way to print solder paste into through holes as well as for SMT devices. I suggest you contact Alden Johnson at MPM in Franklin, MA (website info at http://www.mpm.com) about what he has done here. The trick in getting the solder pa
Electronics Forum | Tue Jan 08 11:28:30 EST 2002 | mregalia
We use NC flux exclusively for SMT and wave soldering. And it is a fairly old formula from Multicore, though we are currently qualifying a new formula. The automated soldering does not appear to be a problem. It is only the hand soldering that causes
Electronics Forum | Thu Jan 24 13:23:53 EST 2002 | Shawn
Thank you all very much for the responses. The solder is eutectic and the problem, as far as I can tell, has been around before I was here, 2+ years. The flow machine is a treiber with 2 bottom preheaters and 1 top. The solder pot temp is 500F +/-4F
Electronics Forum | Sat Feb 02 23:16:17 EST 2002 | caldon
STIMPMAN- Dave is correct Teflon has to be going somewhere. Solder is also expensive and to be dragging it around the fingers on your machine is not cheap either. (I am sure Debbie could recomend a reclain system ). Some times the pain is either fron
Electronics Forum | Mon Jan 20 22:39:46 EST 2003 | davef
Hi Stevo, Most paste suppliers say something like, �above 183*C for 45 to 60 seconds.� The problem we have with statements like that is that they seem to assume that the pads, component leads, and solder paste are all near eutectic 60/40 solder. A
Electronics Forum | Mon May 09 10:52:29 EDT 2005 | patrickbruneel
Hannu, First and for all I have a problem with your question "tried and trusted" for the simple reason that you are going to change too lead-free. Ultrasonic soldering or welding is not new, as far as I know it is only used applying the ultrasonic
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