Electronics Forum: viewing (Page 1249 of 7901)

Tape residue cleaner

Electronics Forum | Fri Apr 07 11:52:44 EDT 2000 | Ashok Dhawan

Can anyone suggest a cleaning solvent for removing silicon residue after K Tape has gone through 2 cycles of reflow soldering ? The solvent or cleaning method has to be compliant to IPC Standards - to be used for cleaning gold edge fingers - PCB asse

Re: Tape residue cleaner

Electronics Forum | Fri Apr 07 16:10:44 EDT 2000 | Chris McDonald

Kapton Tape should not leave a residue. But Ive seem cheap Kapton do that. Anyways I have gotten a stencil cleaner soldevent to clean off tape residue (Multicore has a good one) It will meet IPC. Chris

about solder bridge

Electronics Forum | Wed Apr 05 23:56:02 EDT 2000 | angela

Recently we have serious problem of our 0.5mm pitch QFP solder bridge. I check the viscosity of the Litton Kester paster. It's roumd about 700 is it too low. And do you have god solution about it? thanks alot

Re: about solder bridge

Electronics Forum | Thu Apr 06 07:53:35 EDT 2000 | jacob lacourse

I have also come across this very same problem and found that our screen vendor made a mistake on our screen. Check the thickness of your screen it should be about six thousandths if it's eight thousandths then you are most likely depositing to much

idle machine time

Electronics Forum | Wed Apr 05 13:00:27 EDT 2000 | mike d

Hi guys, Anyone have any good ideas on how to fill up idle surface mount machine time? We are currently between projects and have idle time which I need to fill. Any good tips would be greatly appreciated. Thanks, Mike D.

power dissipation design

Electronics Forum | Wed Apr 05 08:33:36 EDT 2000 | Robert Hartmann

Can someone lead me to some articles or technical standards showing formulas/design criteria for thermal management in a BT BGA? I need to be able to dissipate about 4 Watts, and am having trouble finding information on how to calculate what our BGA

Alternative to solder -CE 3103????

Electronics Forum | Tue Apr 04 16:39:41 EDT 2000 | Kevin Facinelli

Does anyone have any good information on alternative solder paste materials like the Emerson and Cuming CE 3103. I would be interested in any information anyone may have on these new materials...... Thanks, Kevin

ESD Video

Electronics Forum | Tue Apr 04 11:51:29 EDT 2000 | Dave C.

I am looking for a Spanish version video for ESD safety. Does anyone have 1 or know where we can get one?

Re: Matrix Trays

Electronics Forum | Wed Apr 05 16:27:40 EDT 2000 | M. Vina

Mike, I believe these are two possible sources: Peak (408) 934-2480 Eco-Tel (408) 524-7100 M. Vina

Re: Matrix Trays

Electronics Forum | Thu Apr 06 11:34:21 EDT 2000 | John Thorup

BTW... a PLCC44 fits nicely in a TQFP 14x14MM (80 pin) tray.


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