Electronics Forum | Wed Dec 18 07:22:23 EST 2013 | davlec
We have not tried VectorGuard, so I cannot comment on that specific solution. However we have been using a Tecan Genesis system for several years and are very pleased with it. Unlike the DEK solution, the tensioning is entirely mechanical so there is
Electronics Forum | Thu Oct 21 21:26:19 EDT 1999 | Dave F
Yims: There's several threads in the archives on re-useable stencil frames, but they seem to be focused on a limited nubmer of suppliers. I'm trying to take a big picture of the suppliers of these frames. So I'd like to know about: 1 ITT ProFrame
Electronics Forum | Wed May 20 19:55:00 EDT 1998 | D. Lange
| Have you tried the new Accu-Frame from PNC? It tensions on all four sides using an operator-INdependent mechanical scheme. It seems pretty slick. They're failry new, and don't have a frame for the MPM's last time I checked, so I haven't tried it
Electronics Forum | Fri Dec 09 15:10:55 EST 2011 | davef
Can you use the equipment manual as the basis for learning how to use the machine? Each model of printer has different alignment techniques. We don't have a clue of your model type. So, we'll approach the question from its most basic point. Registe
Electronics Forum | Mon May 24 13:33:46 EDT 1999 | Dave F
| We are running a number of boards with 8-10 25 mil PQFPs on board. Our process is mature with at least 3 years experiance and statistically few opens on the QFPs. Our beloved purchasing department has chased the almighty $ and changed FAB vendor
Electronics Forum | Tue Jan 30 12:03:15 EST 2001 | slthomas
Pete, I'm wondering how much optimisation you needed (or were allowed) to do with respect to connector design. The first one we evaluated had a row of leads that I can only describe as "crescent" shaped in cross section. Impossible to get even 50%
Electronics Forum | Wed Nov 10 18:02:54 EST 1999 | John Thorup
Hi Dave Sounds like what we call a "squeeze ball". Usually caused by excess paste squeezed over the mask between the pads of the component when placed. This sometimes escapes the pull of surface tension back to the fillet and escapes to the side, us
Electronics Forum | Fri Oct 22 21:35:54 EDT 1999 | se
It's IIT, not ITT. DEK in the UK also uses a tensioning frame, but I don't know of any suppliers in the US. As a stencil vendor without a quick mount/re-usable frame to sell, I can say that I have not heard many complaints regarding print quality o
Electronics Forum | Tue Jan 28 07:10:30 EST 2020 | spoiltforchoice
Looking at buying a new stencil frame. We are a small low volume, high mix place & can changeover stencils several times a day. There are several framing systems out there but most of them are Pneumatic.(VectorGuard,Zelflex,LTC Quattro) I've seen/h
Electronics Forum | Mon Jun 29 13:51:29 EDT 1998 | Russ Miculich
| WHAT SHOULD THE RATIO BE OF STENCIL APERATURE TO PAD TO GET GOOD QUALITY RESULTS. BY THAT I MEAN, A MINIMM OF SOLDER BALLS, AND LITTLE TO NO BRIDGING, SHORTS, ETC.. | RIGHT NOW WE ARE USING A 1:1 RATIO, BUT ARE INVESTIGATING REDUCING THE APERATU
