Electronics Forum | Wed Dec 14 20:17:48 EST 2016 | davef
As I understand, you are wire bond gold wire to gold pad, where the substrate has good bond strength, but the die does not. If bond quality is good, and then drops off rapidly, then it's probably something to do with contamination within the system
Electronics Forum | Thu Jun 06 10:05:57 EDT 2013 | azhiker
OK guys, we got our Adipic acid. What is the preferred methode of applying it? a) Nozzle mounted, momentarily turn off wave and then brush? Or b)coat nozzle with the acid then mount it and turn wave on? By the way, we are using Indium flux WF-994
Electronics Forum | Fri Apr 13 05:07:57 EDT 2001 | zam_bri
Hi Dave, Thanx for your reply. What is it in the process of manufacturing the capacitor that can go wrong until it can caused the chips to be chipped-off or cracks. I've encountered alot of this problem lately. First I thought it was our process t
Electronics Forum | Thu Aug 21 17:17:47 EDT 2003 | justin
Do some push / pull testing. Typically with black pad, you can flick the components right off the board. If you have this, the boards are about as reliable as a Yugo. If you get decent push / pull results, odds are you don't have black pad and you
Electronics Forum | Thu Mar 14 07:22:22 EDT 2013 | fredcalkins
This problem has become a real issue with the tacky silicon used in many LEDs. Cree has recomended that the pull off angle be changed for the cover film as mentioned by the previous commentor. With these new silicon LEDs they are recomending teflon o
Electronics Forum | Mon Mar 20 09:08:42 EST 2006 | mapell
AR Sounds like dirty chains... couple ways to check... Pull off the drive chain for the conveyor. Place a wrench on the (unload end) drive shaft and spin, if it is a bit tough.. dirty rails. Also look at load end of chains. The chain goes low and w
Electronics Forum | Thu Sep 01 02:47:01 EDT 2005 | stalkerb
Thanks Cmiller & PR, I am warmed to hear others are doing this sort of thing.......like all inovative ideas, you often stumble into them. As far as im aware the ERSA dual Pot is the only machine avaiable on the market that can do this sort of thing
Electronics Forum | Wed Jan 02 08:04:09 EST 2002 | wsanita
The only time i have seen this (5 years) has been from operators not allowing the magazines to shut off before pulling them out of their slot. Check the handles on the front of the magazines. If you see some dings on them there is your answer. Good l
Electronics Forum | Mon Jul 07 11:36:11 EDT 2003 | slthomas
It's definately soldering because the fillet is pulling the solder plating (I believe, from what I can see under available magnification) off of the termination, and some of the nickel plating as well.
Electronics Forum | Mon Feb 02 12:57:40 EST 2004 | kauer
Hey, Give me a few minutes, I just happen to have a DEK not being used right now, let me pull the front cover off to refresh my memmory, I think there is a Gain POT in there somewhere.