Electronics Forum | Tue Jan 31 15:40:44 EST 2006 | mgdrouin1
Comp is relay. I've pulled the spec. Max 240. Using Leister h/g with manual temp settings from 1-6 (20 - 600C)set by the operator. Gun was set to setting 4. They are using the heat gun to reflow the solder after SMT but before wave. High fai
Electronics Forum | Fri Mar 26 11:31:34 EDT 2010 | rway
I have been using ICT for a number of years. It is still a viable resource for catching defects in the production process. AOI doesn't catch everything, such as bridging on QFN or J-lead devices (this will depend on the type of AOI and camera syste
Electronics Forum | Thu Feb 12 11:57:59 EST 2009 | jmiller
i have searched the forum for hours. read all the threads that deals with cleanliness and ionic testing. (http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=40295) (http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=22603) (http://www.
Electronics Forum | Wed Jun 24 16:23:29 EDT 1998 | Justin Medernach
| Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | Mike Mike, Your concer
Electronics Forum | Thu Jun 25 09:53:04 EDT 1998 | Earl Moon
| | Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | | Mike | Mike, | You
Electronics Forum | Mon Feb 23 13:25:21 EST 1998 | Steve Gregory
Steve - you must not work to IPC class 2 or 3 requirements. If the solder is "pillowed" around the lead, I would strongly suspect a wetting problem. Most of the Paladium leads I see soldered have a strong line of demarcation but no pillowing. Hav
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 | Wed Feb 25 01:24:34 EST 1998 | Steve Gregory
Dave, I confess I was a tad too general and a bit too extreme describing the way ALL solder joints look on palladium coated leads. I should been more specific about the "pillow-effect". I've seen it regularly with palladium coated leads on small SOT
Electronics Forum | Thu Dec 16 14:51:15 EST 2004 | blnorman
It's driven by those highly technically astute politicians in Europe. IPC has a lead-free forum you can subscribe to and almost to a person in the forum agrees that elimination of lead in solder is assinine. From the automotive end of electronics
Electronics Forum | Tue Feb 14 13:16:49 EST 2006 | Carol Stirling
CRITICAL DILEMA! Has anyone run into the problem described below and if so, what was the fix (besides not dealing with this Supplier)? Also, we do not have component manufacturing process experience. We are purchasing a surge resistor that function