Electronics Forum: no solder fillets (Page 3 of 66)

Cleanning no clean residu

Electronics Forum | Fri Oct 19 11:51:25 EDT 2007 | rgduval

By definition, no clean solder can be not-cleaned. The solder/flux are formulated to result in low ionic-contamination, hence, no cleaning. I have, however, always had at least one customer that requests their no-clean solder get cleaned. No-clean

Cleanning no clean residu

Electronics Forum | Fri Oct 26 07:41:26 EDT 2007 | bbl

We recently changed to an Amtech no clean paste and flux that is washable. So far excellent results. Far superior to the water soluable paste we were using. Fewer solder balls, longer life in printer, boards can be left up to 5 days and still come

Re: no clean rework

Electronics Forum | Tue Aug 10 05:51:03 EDT 1999 | Gian.D

hello to everybody, we have a really satisfactory no clean process, both smt/reflow and wave soldering, but we get troubles with defects rework; does anybody know how to eliminate flux residues or how not to produce them during rework op

no tru-hole on wave

Electronics Forum | Sat Aug 26 12:26:57 EDT 2000 | Ramon I Garcia C

Hi friends: I have a problem in the process of one PCB, I have a lot of insuficients of solder in top of the board, this pcb already was working good, but sudenly began there isn't flow thru hole, I ran the profile and it was ok, if I inmerse i

no clean rework

Electronics Forum | Mon Aug 09 10:10:29 EDT 1999 | Gian.D

hello to everybody, we have a really satisfactory no clean process, both smt/reflow and wave soldering, but we get troubles with defects rework; does anybody know how to eliminate flux residues or how not to produce them during rework operations? Th

Re: no clean rework

Electronics Forum | Tue Aug 10 07:47:12 EDT 1999 | Brian

hello to everybody, we have a really satisfactory no clean process, both smt/reflow and wave soldering, but we get troubles with defects rework; does anybody know how to eliminate flux residues or how not to produce them during rew

Re: no clean rework

Electronics Forum | Tue Aug 10 20:22:15 EDT 1999 | Wayne Sanita

Hello, Could be that touchup operators are using too much flux. What are you dispensing flux with. Disposable or refillable flux pens are good to have around. hello to everybody, we have a really satisfactory no clean proc

no contact on BGA

Electronics Forum | Tue Jun 26 12:24:24 EDT 2001 | nifhail

Thanx for the reply Dave. We actually had a few thermocouples attached from underneath to see if there is any delta in temperature within the same BGA's ball. They looks OK, with the slope of 1 -2 Deg C,soak at 120 Deg C - 150 Deg C at about 90 sec,

Re: no clean rework

Electronics Forum | Thu Aug 12 09:02:08 EDT 1999 | Gian.D

Hello, Could be that touchup operators are using too much flux. What are you dispensing flux with. Disposable or refillable flux pens are good to have around. Good! could you suggest some suppliers name or address or web site or e.mail...

Touch or no touch-up

Electronics Forum | Fri Feb 11 01:36:22 EST 2005 | brown

OK I am counting someone knowing this. True or False, if my touch-up operators touch-up the smt solder joints too many times will this make the joint weaker? if yes why? and what happens to my intermetalic layer? I have insisted if it looks good don


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