Electronics Forum | Tue Feb 29 10:14:02 EST 2000 | Robert Hartmann
My company is just getting into the flip chip packaging arena. We are putting in a prototype/small volume wire bond PBGA line. We have some questions with regard to choosing solder balls and cleaning of flux. 1) Is there a formula for the shrink
Electronics Forum | Tue Feb 29 10:14:02 EST 2000 | Robert Hartmann
My company is just getting into the flip chip packaging arena. We are putting in a prototype/small volume wire bond PBGA line. We have some questions with regard to choosing solder balls and cleaning of flux. 1) Is there a formula for the shrink
Electronics Forum | Tue Oct 22 20:40:34 EDT 2002 | davef
So, what is this layer made of?
Electronics Forum | Fri Oct 25 05:43:14 EDT 2002 | hanvictor
i have the experience like that, it should have something to do with solder paste.
Electronics Forum | Sun Dec 17 18:16:27 EST 2006 | greg york
can you describe the residue more for me cheers greg blt circuit services
Electronics Forum | Wed Dec 20 12:25:16 EST 2006 | Polynesian Pebbles
Hey pr, what cha slicin' these days besides your tee shots (and your bread)? LOL
Electronics Forum | Wed Dec 20 12:52:18 EST 2006 | pr
Been known to dice a flip or 2. (and we're playing in 70 degree weather)!
Electronics Forum | Tue Oct 22 17:23:35 EDT 2002 | Yannick
Hi, I wondering if someone know the anwser to that. I'm using a solder paste 63/37 and on the solder joint we have a tiny little layer or flux who is like crystalin. I try to play with my profile the get it off but I don't get much success. So D
Electronics Forum | Wed Dec 20 04:43:36 EST 2006 | greg york
Any decent flux would volatise off with the heat of the wave unless absorbed into the solder mask. Test this by trying to clean in alcohol or common solvent aerosol, if it does not clean then it is probably Mineral Salts from solder mask fillers. Ano
Electronics Forum | Sun Dec 17 18:14:12 EST 2006 | greg york
circuitmaster designs prowave is unbeatable. They may have an agent in the usa if interested I will try to find out for you. cheers greg
