Electronics Forum | Fri Aug 27 13:31:47 EDT 1999 | swsng
1.5 FATOR FOR 20MILS QFP REDUCE 2 MILS HEEL AND INCREASE 2MIL AT TOES AT SIDES -1MILS EACH. SWSNG
Electronics Forum | Wed Nov 09 05:18:15 EST 2005 | pavel_murtishev
Good day, So, only material supplier recommendation is the basis for solvent selection. Am I right? BR, Pavel
Electronics Forum | Thu Aug 26 04:35:54 EDT 1999 | Wolfgang Busko
| | | Does anyone have any information on stencil aperture/pad ratios for noclean solder paste. In the past I have experienced severe solder ball problems when using the same size apertures from aqueous products as I do with the No-clean products.
Electronics Forum | Tue Apr 14 10:00:47 EDT 1998 | Chrys
| Could someone point me in the direction of or have any info on a basic no frills Ultrasonic cleaner capable of cleaning 20"x20" stencils? | Thanks, | Jack LaRue | jlarue@mail.nortechsys.com Have you looked into the used equipment market? If you're
Electronics Forum | Thu Nov 10 07:57:51 EST 2005 | davef
AJ: Problems with IPA are: * IPA / material being 'cleaned' combination still needs to be removed from the stencil. * IPA and empty containers are a hazardous material by RCRA criteria (40CFR 261) * Flash point (~12*C TCC) of IPA is low enough that a
Electronics Forum | Wed Feb 24 01:08:10 EST 1999 | Joe Cameron
Has anyone used the mechanical stencil foil tensioning system from certain company that eliminates using stencil frames and epoxy & mesh? Any comments on whether it's worth looking into? We go through product revisions like we go through clean sock
Electronics Forum | Mon Apr 13 19:35:11 EDT 1998 | Mike Konrad
Aqueous Technologies manufacturers a "no-frills" stencil cleaning system. The Model designed to handle stencils up to 24" x 24" is available for under $ 10K. This system is, however, not ultrasonic, rather spray-in-air. If you desire information, c
Electronics Forum | Mon Oct 15 13:41:49 EDT 2001 | bschreiber
Hi Dale, I have copies of the articles of which Mike references. If you need copies for support, contact me at: bill@smartsonic.com. Rinsing should be done by ultrasonics also. Spray in atmosphere systems will not penetrate into the same tight ar
Electronics Forum | Thu May 03 18:40:34 EDT 2001 | pzohbon
We produce a board right now with a QFP that has 20 mil pitch and we are seeing problems with the solder deposition. I believe it to be a cleaning issue which we are addressing. Soon we will be pasting for bga's. Is there a problem with using inter
Electronics Forum | Fri Oct 19 22:55:29 EDT 2001 | ericchua
Hi, Not so sure. I know one of the equipment can do it, there is Kolb RB6D. This system can clean stencil, misprint, assembly board, etc. This Kolb also provide chemcil for the correct cleaner. Hope this can help you. Email to me if you need any he
