Electronics Forum | Mon Sep 22 04:59:10 EDT 2008 | fadzil66
I have concern about cleaning solder ball after misprinting paste on PCB, currently use vigon 200 with ultrasonic generate but only 70% solder ball able to remove, Any other method or equipment can help to clean solder ball.
Electronics Forum | Fri Sep 26 07:27:29 EDT 2008 | realchunks
This sounds interesting. Could you explain?
Electronics Forum | Thu Mar 16 09:01:28 EST 2000 | Ashok Dhawan
I am looking for suggestions on " How to remove solder Balls". We have some designs and tools where nothing can be done economically except to remove the solder balls manually. We are using "Probe" picks to do that job. Anyone who can suggest a bet
Electronics Forum | Mon Sep 22 15:21:19 EDT 2008 | davef
While you're waiting for others to reply, search the fine SMTnet Archives for postings like: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=30878
Electronics Forum | Tue Sep 23 20:56:08 EDT 2008 | davef
For additional information, download IPC-7526 - Stencil and Misprinted Board Cleaning Handbook http://www.ipc.org/html/IPC-7526.pdf
Electronics Forum | Thu Sep 25 17:44:37 EDT 2008 | gregoryyork
strongly agree dont wipe at all, we make an air operated cleaner which blows the powder off while immersed in solvents to break up the flux. cheap and effective as long as you dont wipe first
Electronics Forum | Tue Sep 23 07:27:31 EDT 2008 | realchunks
Do not wipe the board at first before putting it in your cleaner. It will leave more paste in your tank, but you won't smear it into every corner of your solder resist. We found that only our stencil cleaner would clean a board properly and leave n
Electronics Forum | Tue Sep 23 14:13:29 EDT 2008 | slthomas
In piggy back on Chunks' comments, what you might wipe it with can be the problem. Alcohol absorbed by the solder paste inhibits the effectiveness of some cleaning chemistries, and driving it into the nooks and crannies exacerbates the problem. If
Electronics Forum | Tue Sep 14 19:47:16 EDT 2004 | davef
use something other than HASL. "The rest of the world seems to be processing with no problems..." [Hello!!! Earth to Carol. This is a test.] Things you are considering could be more trouble than they�re worth. "1) Reduce via hole size" [If you re
Electronics Forum | Tue Dec 12 17:54:04 EST 2000 | ralph
I've had this problem myself, though in using water soluables. But the process to eliminate it is still the same. There are three possible causes for this to occure. Too much humidity, to much solder, and too much heat. Are you leaving the paste
