Electronics Forum | Fri Aug 03 09:21:08 EDT 2001 | Ian T
hi my company is planing to purchase an aoi system to be used inline. is there anyone out there doing this, if so do you use all the machine options (pattern character recognition, bad board marks, correct part polarity...) or do you dumb it down(pa
Electronics Forum | Sat Feb 05 12:36:09 EST 2000 | Albert Hay
Hello everyone, I am cosidering the possibility of using Low-Melt solder for repair purposes. However, I am concerned about adding a new alloy (agent) to the board that already has the No-Clean solder on it. Also, is the Bismuth in the Low-Melt comat
Electronics Forum | Sun Feb 06 07:37:29 EST 2000 | Dave F
Albert: Several points: � Bi should have no effect on your no-clean. The flux you select with your Pb/Sn/Bi wire solder could be an area for concern tho. � Bi will form an alloy with Pb with a melting point of 93�C. � Look at "Process Change - Rya
Electronics Forum | Wed Feb 02 09:58:00 EST 2000 | Dave
Ashok, I don't understand what they're saying about the gray joint. Usually a gray joint has to do with too much heat. Also, the higher the temperature the lower the fillet because of the increased viscosity of the solder. Correct? Wouldn't yo
Electronics Forum | Sat Jan 29 00:30:09 EST 2000 | Micah Newcomb
Mike, I found the easiest way around your issue is to get your parts in T&R rather then trying to modify your machine. Some part manufacturers may be unwilling to T&R your part but there is always a ready and willing company whom would be happy to d
Electronics Forum | Fri Jan 28 10:09:50 EST 2000 | mike d
Istvan, One possible reason for this is that you are using a water soluble flux in your wave solder machine. If you are and the boards are not pre heated long enough, the water in the flux does not evaporate before hitting the wave. When the water
Electronics Forum | Sun Jan 23 09:07:07 EST 2000 | M Cox
Robert 1st Short term, let us know what type of machine you are running. Maybe somebody out here has a trick to get you buy. 2nd Long term, check the pocket dimensions against VS what the manufacturer of the part says it should be. Drive correctiv
Electronics Forum | Sun Jan 23 09:24:11 EST 2000 | M Cox
I have had good luck buying after market nozzles from SMT research. Fuji CP3 Nozzles, I bought the Heavy-duty version and they lasted 3 times longer than OEM Nozzles. SMT Research buy's their Panasonic nozzles from the same source as Panasonic does
Electronics Forum | Fri Jan 28 09:16:37 EST 2000 | Rene
The BGA-2000 is an old system thats correct ! I am a BGA-3500 user (the newest version)with windows software and a large underboard heather, i am verry happy with the system after using an APE wich was verry bad for my aplication. There is a posibili
Electronics Forum | Mon Jan 31 21:11:09 EST 2000 | Dave F
Dave: Find: "Comprehensive Surface Mount Reliability Model Covering Several Generations of Packaging and Assembly Technology", by J. Clech et.al. IEEE Trans on Comp. Hyb. and Manuf. Tech. Vol. 16, No. 8 Dec. 1993, p.949. It listed cycle to failure
