Electronics Forum | Thu Feb 16 10:12:21 EST 2006 | slthomas
"Readings from thermocouple fixed by kapton tape only are inaccurate." I keep hearing this, but I haven't heard why, exactly. Why would they be any less accurate than with Al tape, which by nature of it's conductivity can provide an inaccurate measu
Electronics Forum | Tue Feb 28 17:22:23 EST 2006 | dave
All, I am currently trying to run a quantity of boards thru my wave machine but I am having serious issues with hole-fill or lack of aswell as others. The boards are HASL finish and due to materials issue they have been waiting for Wave Solder Proce
Electronics Forum | Thu Mar 02 05:07:51 EST 2006 | pavel
We have bought an old zevatech 730 in Bosch auction (hello MikeZIG). There seems to be something wrong with the X axis servo, the machine is vibrating when the head is moving fast (in fact the machine is dancing, in the race with washing machine it w
Electronics Forum | Tue May 02 05:59:28 EDT 2006 | davef
We agree with Ken's points about off contact / screen versus stencil, but this DHolt is talking stencil [regardless of what is typed about screens]. Comments are: * On "smears under the stencil": smearing happens. It makes us wonder about the frequ
Electronics Forum | Tue May 23 14:08:56 EDT 2006 | bman
We've been placing BGAs for a while now, and I personally had to x-ray every one of them. The only time we had a placement problem was when a few parts were placed by machine in the wrong orientation. The operators fixed it by hand before it went t
Electronics Forum | Mon Jun 12 09:42:49 EDT 2006 | mmjm_1099
Hello all, I am having an issue with my QP341 when it reads fiducials. It will be running fine than it will freeze when it goes to read a fid. When I reset the QP and it seems to work fine for a little bit than it will repeat itself and freeze up aga
Electronics Forum | Tue Jul 04 08:04:37 EDT 2006 | davef
The heat from a soldering iron will push raw flux across the surface of the board and into surprising places. It's bad practice to squirt liquid low residue flux on the board during rework, because the portion of the flux that does not get heated pr
Electronics Forum | Wed Jul 19 09:21:54 EDT 2006 | Chunks
That's like asking who's Mom is the best Mom. Your main goal in choosing a screen printer is based on several things: Size for your boards. Speed of your line. Board layout in ref to edge clearance / use of breakaways. Post inspection 2D/3D of paste
Electronics Forum | Mon Aug 21 04:20:49 EDT 2006 | Rob
Hi Mika, I used to work for the largest chip cap manufacturer in the world, and by far the largest problem we would see was cracking due to incorrect z height adjustment on Chipshooters. It can also cause solderballs and bad joints by displacing th
Electronics Forum | Tue Feb 27 13:58:49 EST 2007 | wavemasterlarry
Sorry James but Im no sales man. Just becasue i answer peoples questions with some answers they don't want to here makes me a bad guy well thats fine. And if you don't want my advise thats fine to. I know people pick on us smarter guys and I can d
