Electronics Forum | Tue Jul 23 21:22:10 EDT 2002 | davef
http://www.petroferm.com/PTF-053/pdf/tds/petroferm/hydrexactds01-01.pdf ... expect that we use a spatula and stencil wipes [JNJ???] to prep the stencil before cleaning.
Electronics Forum | Thu Apr 02 11:12:34 EST 1998 | Justin Medernach
| Looking for Cleaning solvent to claen missprinted PCB, that will be good for paste (CS) and glue (PS). | One that is easy to evaporate with out leaving | white powder around component leads on CS (when cleaning PS) Ron, If you are running a no-cle
Electronics Forum | Fri Feb 11 08:51:45 EST 2000 | HMAL
Dear Masdi, Perhaps you should check again your screen print process. Small amounts of solder paste under stencil can cause your problems. This paste is from previous printed pcb. When printing next pcb this paste attachs to places that it doesn't
Electronics Forum | Fri Aug 18 14:00:27 EDT 2006 | slthomas
Chunks is a pretty with-it dude. The only additional thought I have is the possibility of poor misprint cleaning. If they're wiping instead of spray or US washing they may be contaminating the boards prior to reprinting. And yes, I know Chunks is
Electronics Forum | Fri Feb 12 10:44:02 EST 1999 | Bill Haynes
I am fairly new to the SMT game and I am getting conflicting answers to the following. Maybe someone can help me! When printing, one person is telling me that the stencil should be wiped completely clean of all paste because the quality of the pr
Electronics Forum | Mon Aug 25 19:27:11 EDT 2008 | Mike Konrad
There are a number of �low cost� stencil cleaners available. I am a manufacturer of one but I'll list a variety and let the others provide editorial on which is best. Basically, there are three technologies, manual cleaning (solvents and wipes), ul
Electronics Forum | Thu Sep 04 13:03:05 EDT 2008 | realchunks
Some use small cleaners but I have always used the stencil washer. Most stencil washers come with a basket of some kind of board holder (or via holder - depending on how technical you want to get). Buying a stencil cleaner is hard to justify just f
Electronics Forum | Thu Oct 23 13:38:30 EDT 2008 | fede
Hi, This week I received a newsletter from the people from High-Tech Conversions, offering an under stencil wipe which needs only water to activate its and clean. My question is, did any body tried it? Is it better than cleaning with solvent?
Electronics Forum | Thu Mar 29 02:14:07 EST 2001 | peterson
AOI technology is over-priced and inconsistent...lots of false errors. Your best bet is a paste height measuring device (3-D) Cyberscope makes one for 25-30 thousand. This process is really only necessary for high volume operations. As for you questi
Electronics Forum | Fri Oct 07 15:49:58 EDT 2005 | Amol
Hi, Can anyone suggest what solvents are the best for manual stencil cleaning?? we are currently using alcohol wipes, but the fine pitch apertures still have solder paste stuck in between them. We should ideallyhave a stencil cleaner, but until that
