Electronics Forum | Fri Jun 29 07:45:05 EDT 2012 | tommyg_fla
It sounds like the flux is not holding up during the soldering operations. That would account for the webbing, etc. Also is the problem specific to a certain board type or lot code of boards? Do you think that your boards are outgassing during solder
Electronics Forum | Sun Sep 09 10:53:05 EDT 2001 | bentzen
For reflow soldering, you are correct ! The higher surface tension of the solder paste in nitrogen atmosphere can increase the number of solder bridges if the component or solder paste print is inaccurate. Another defect that might increase is tomb
Electronics Forum | Fri Apr 03 05:25:31 EST 1998 | Donnacha
Hi all, Could someone suggest a web site that contains good representations and pictures of SMT solder related defects?? I need to compare these with some pictures I'm using for a project presentation this week. Thanks, D.
Electronics Forum | Wed Dec 15 21:29:34 EST 2004 | davef
We�d say that it�s incorrect that ENIG solderability protection cannot be steam aged. It�s true the immersion tin and silver cannot be steam aged. We believe that most of the issues surrounding the poor performance of ENIG after steam aging is attr
Electronics Forum | Fri Mar 21 14:44:16 EDT 2014 | molder
Hello for all People's .. I have a question. I have a solder past KOKI eco+plus S3X48-406-5 out of date. I have found in the web some articles of reviving solder expired past. one is this, can you comment? http://www.youtube.com/watch?v=TCyki2frm3Q
Electronics Forum | Wed Oct 29 23:40:29 EST 2003 | ppcbs
We here at Precision PCB Services, Inc. Perform selective ball removal. We just completed a job today where we removed 4 balls, and then installed traces to dog-bone the pads at two locations on 30 BGA's. An eaisier and more cost effective solutio
Electronics Forum | Thu Jun 21 16:30:47 EDT 2012 | grauen06
We are currently using an ACE K.I.S.S. 104. We used SN100 solder with AIM NC265 flux (no clean, alcohol-based). Also, we use topside preheat at 100 degrees C and a 6mm nozzle (as big as we can go with this application). The PCB has a matte finish as
Electronics Forum | Thu Jul 14 10:37:15 EDT 2005 | pjc
Here are links to the web sites for three instruments specifcally designed to monitor wave solder process. Some have SPC logging capabilities: http://www.ecd.com/emfg/instruments/waverider/ http://www.swpc.co.il/wso.htm http://www.solderstar.com/w
Electronics Forum | Wed Feb 14 17:16:23 EST 2001 | slthomas
From Kester's web site: "Flux cored solder wire has a limited shelf life determined by the alloy used in the wire. For alloys containing more than 70% lead, the shelf life is two years from date of manufacture. Other alloys have a shelf life of thr
Electronics Forum | Mon Jun 14 16:48:34 EDT 2004 | jsmith01
Is any one else having a problem with parts that are Ni/Sn plated? The parts in question are a 1206 voltage suppressor form AVX. I am still using a stander 63/37 solder paste which is according to AVX�s web sight compatible with this plating. The
