Electronics Forum | Tue Jan 05 15:36:53 EST 1999 | Earl Moon
A question for you all! Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clean under 20 mil pitch
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 | Thu May 22 14:16:40 EDT 2003 | MikeF
We need more information to give you a good answer. Is this a leaded part (axial or radial) or smt? How big is the part, how much weight per lead? What is the end use environment, will it see any vibration? or temperature extremes? Some general com
Electronics Forum | Tue Jun 19 13:57:40 EDT 2007 | realchunks
Hi Bill, You should contact your local water work dept. and work with them. Every county is different. Sometimes it not what you put in the drain, but how much. They may want to monitor your drain, which is standard stuff. Be prepared to show th
Electronics Forum | Mon Apr 25 11:24:31 EDT 2005 | Daan Terstegge
I have a question about inspection, touch-up, and how far you need to go to get a product that meets the required IPC-spec. According to some reports (i.e. "New Study Reveals Component Defect Levels" by Stig Oresjo of Agilent) the average defect leve
Electronics Forum | Tue Feb 24 23:25:03 EST 1998 | Larry
I am looking for a machine to put parts on tape and reel. I am supplied with parts from customers that are on short cut strips for production prototype boards. I would like to put these onto feeders, but they need to be re-taped first. Is there is a
Electronics Forum | Fri Feb 09 02:30:50 EST 2007 | Muhammad Haris
What are Resins, Solvents, Activators, and Thickening Agents in Solder Paste and what are their helpful and harmful effects? AND What are the purposes/properties and effects of Sn(Tin), Pb(Lead), Ag(Silver), Bi(Bismuth), In(Indium), Cu(Copper), Ni(
Electronics Forum | Tue Apr 11 16:42:56 EDT 2000 | Chad Notebaert
I�m thinking �Poor intermatallic� It could be a few things. Lets start at the beginning. -Is your paste a 63/37 mixture? -Have you monitored you screen printing, Verify Solder deposition, Are you getting enough paste? -You say the solder looks like i
Electronics Forum | Mon Jan 07 20:37:15 EST 2002 | davef
For soldered areas, we like to keep gold thickness substantially below the maximum you propose. Search the fine SMTnet Archives for our discussions on the topic of acceptable levels of gold with solder connections. Let�s fix this �no one seems be s
Electronics Forum | Mon Aug 04 21:37:29 EDT 2003 | davef
We loose power all the time. So, we have a UPS the size of a four of cases of beer on our telephone system. On placement machines, most people opt for an orderly machine shut-down, rather than completing the program, but you can do it either way.
