Electronics Forum | Fri Sep 28 18:16:21 EDT 2007 | hegemon
Replacing Screen Printer with a dispensing system? If you have large complex PCBs you will lose a bit of time to say the least. That being said, we have had great success with an I&J Fisnar 'bot with positive displacement (auger) valve for dispensi
Electronics Forum | Fri Oct 05 21:29:43 EDT 2007 | mika
Hussman, I don't understand the last sentence of yours "but far from where this thread was going". What do you mean with that? I was just trying to give "Novaman" some infos. The fine old equipment You use from the old -20:s or so, is probably just a
Electronics Forum | Fri Oct 12 14:53:56 EDT 2007 | mika
Hussman, I'm sorry that I was a little bit tired and on top of that not so sensitive to your humour. Not so easy to understand everything for us Swedish guys. We have normally a great sense of humour over here and almost daily we have a big laughs a
Electronics Forum | Wed Oct 10 14:21:04 EDT 2007 | petep
We have done the Green Framed Stencils for an added $50.00 per, then got smart and went to green polyester on RoHS / Lead Free Stencils at no added cost. Dedicated Stencil blades and holders green of course) as well as Green Static mats on dedicated
Electronics Forum | Mon Oct 15 09:58:27 EDT 2007 | davef
Never heard of "special finger marker stickers" for checking wave parallelism. We assume that you're talking board-to-wave parallelism. We use a Durostone fixture with a thermalcouple [TC] in each far corner of the fixture (flush to the bottom of th
Electronics Forum | Fri Nov 09 08:45:31 EST 2007 | philkaz
I am in the R&D department at KIC. We have been making thermal profiling equipment for 20+ years. A standard circuit board is made from FR4 fiberglass. A typical solder reflow profile, whether leaded or unleaded, takes the board above the "glass t
Electronics Forum | Tue Oct 30 06:20:58 EDT 2007 | aj
Hi All, I would appreciate some advise with regard to Leadfree settings for a 5 zone reflow oven. I have a 35mm square BGA 672 pin on board. I am struggling to get the Delta T down to 2 degrees C . I have 5 Thermocuples drilled up from the bottom a
Electronics Forum | Fri Nov 02 08:10:40 EDT 2007 | floydf
Has anyone ever looked into the possibility for > laser marking 1812 size X7R ceramic chip > capacitors injecting sufficient energy to cause > cracking when voltage is applied? If so, what > were the findings? We are having failures of > caps
Electronics Forum | Tue Nov 13 14:11:26 EST 2007 | ratsalad
We use SAC305 for solder paste, and we have been pretty happy with it. When we jumped in to this Pb-free business I was a little nervous due to all the horror stories you hear about the process changes. It's not that big of a deal (at SMT). Over
Electronics Forum | Mon Nov 19 18:58:28 EST 2007 | jmelson
On big chips, we use a tape printing device, I think it is a Brother PT1750. We have a small device, though, that is in an SO8 package, and the only thing we've come up with is to scratch a product letter code and the program date with a stylus. Th
