Electronics Forum | Fri Aug 05 11:32:29 EDT 2005 | saragorcos
Hi Sandy, Here are some suggestions for an optimum cleaning process for cleaning under BGAs if they are assembled to the board to add to the great tips Shean already listed: - Use a good saponifier w/ DI water - an effective saponifier will be able
Electronics Forum | Wed Aug 10 20:30:49 EDT 2005 | slthomas
I've got a new board (actually a new panel...a 4 up, with one row rotated, where it was a 2 up panel with no rotation before) that runs fine on the IVc but not on the IIIc. I've used the same reference points for the image rotation (fiducials) on bot
Electronics Forum | Mon Aug 15 06:17:47 EDT 2005 | md
All, I have a very annoying problem with the FIP3 machine. A while ago i had an issue with 2 sensors (only!) basically they were not sensong boards etc. when I checked the voltage I had 12 volts on the GB line which should have been 0v. This proble
Electronics Forum | Tue Aug 16 00:27:12 EDT 2005 | Peter
Hello, I have a question on white residues formation at wave soldering. We have recently run experiments to test the performance of various halide-free water soluble fluxes (ORH0 under JSTD-004). The flux was applied through a spray fluxer and all P
Electronics Forum | Wed Aug 17 22:41:37 EDT 2005 | davef
Peter are you having fun with solder masks erwat? We saw this years ago with LPI solder masks. It shows occasionally with other masks. We agree with Russ. If nothing [eg, alcohol, flux thinner, acetonitrile, or water] dissolves the haze, then it
Electronics Forum | Thu Sep 01 01:36:23 EDT 2005 | adlsmt
The parts could still be the problem regardless if they came from different lots. If you look under a high mag microscope you should be able to see to some extent if once the lead is gone does it look like the lead plating is gone from the lead and i
Electronics Forum | Fri Aug 19 10:17:35 EDT 2005 | russ
Don, I have used both fixed and reciprocating head fluxers. In my experience I prefer the fixed head over the reciprocating. I actually found that the coverage was more uniform than a reciprocating. However, the fixed head on the Sono-Tek does req
Electronics Forum | Thu Aug 25 10:17:48 EDT 2005 | davef
Send the pic to dave5252 at hotmail.com [you can't send pic through the SMTnet email thing] For more on via plugging, tenting, capping ... look here: http://www.merix.com/technology.php?section=processes&page=pdf/Via_Fill_Plug.pdf Something, a voi
Electronics Forum | Wed Aug 24 08:03:17 EDT 2005 | james
I need some help here. I just to see what suggestions anyone else has. Our Man. Eng. has 3 profiles on our 9 zone Heller Reflow oven. These are the profiles: 1. 120 140 150 150 180 200 215 250 220 29in per minute 2. 120 130 145 150 150 185 20
Electronics Forum | Thu Aug 25 09:09:41 EDT 2005 | stepheniii
I did a search for "DFM" and most of the posts were from the previous century. Is there a tool that is not too expensive that will check a board layout based on DFM criteria? I don't think there could be a good one to give the number of parts and spa
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