Electronics Forum | Tue Jul 02 14:24:30 EDT 2002 | paul_bmc
My question is refering to "stencil life". How accurate is this and is this something I can go by. The solder paste I am using is Kester R562, R562 specifications state that it has a 12 hour stencil life, optimal temp ranges 70-77 F, 35-65% RH. Ou
Electronics Forum | Tue May 02 14:19:26 EDT 2000 | Bill Schreiber
There are two primary causes of epoxy adhesive bond failure, heat and over exposure to moisture. Ultrasonic cavitation is a only a mechanical "scrubbing" action on a microscopic level. However, if the adhesive bond is week or has small areas of det
Electronics Forum | Wed Nov 09 09:01:42 EST 2005 | smtspecialist
I was using a combination of Alcohol and then compressed air for a while because I didn't wanted to add new hazardous chemicals into my factory but after looking into Vigon SC200 with a H/F/R of 0 I decided to try it. Since I started to use it, my
Electronics Forum | Thu Sep 12 10:45:29 EDT 2002 | pbarton
We have used a laser cut stencil 0.15mm (0.006") thick with 0.3mm (0.012") square apertures radiused in the corners 0.06mm (0.0025") to aid paste release. This approach with the (type 3) paste we use has proven successful on thousands of devices plac
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 | Mon Apr 13 19:43:32 EDT 1998 | Steve Gregory
| 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 Hi Jack! Well, I'm sure you've heard of Smart Sonic..
Electronics Forum | Mon Apr 13 19:40:19 EDT 1998 | Steve Gregory
| 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 Hi Jack! Well, I'm sure you've heard of Smart Sonic..
Electronics Forum | Wed Mar 28 15:47:06 EST 2001 | kerryn
Mike, I see that you are from Aqueous Technologies and you sell stencil cleaners. I now understand your sensitivity to this subject. I seriously doubt that the EPA would copy you on correspondence between the EPA and another company. If they did,
Electronics Forum | Wed Mar 28 20:03:33 EST 2001 | Rob Fischer
This is brutal. I think we should call a truce. Mike has very good points and his quotations from the EPA letter are fact. If there isn't a competitor of Bill's who hasn't seen this letter I'd be surprised. We could go on and on about this and th
Electronics Forum | Tue Feb 12 15:48:40 EST 2013 | emeto
My appertures are 10mil diameter. Using electroformed stencil is probably be my next step. Thank you!