Electronics Forum | Wed Jan 26 21:16:28 EST 2000 | Dave F
Mark: It sound like one or more of the following is happening: * Previous heat cycles (ie, reflow, reflow, wave) are degrading the surface protectant * Wire solder flux doesn't have enough stomp to burn through the corrosion. That poor ol' stuff
Electronics Forum | Sun Jan 23 09:07:07 EST 2000 | M Cox
Robert 1st Short term, let us know what type of machine you are running. Maybe somebody out here has a trick to get you buy. 2nd Long term, check the pocket dimensions against VS what the manufacturer of the part says it should be. Drive correctiv
Electronics Forum | Thu Jan 20 20:22:16 EST 2000 | Sam Guilaume
We have run some experiments on double side BGA assembly. Our preliminary results show that complete overlap of top and bottom BGA's indicate fair results, even after reliabiltiy tests (vibrations, temperature cycles, HALT). I will be interested to h
Electronics Forum | Tue Jan 25 16:21:28 EST 2000 | Rex Breunsbach
My experience with weighing fluxed boards or cardboard is pretty dismal. Problem is the solvent in the flux evaporates about as fast as you can weigh it. One approach I have seen used to improve accuracy is to weigh and record the weight at 30 secon
Electronics Forum | Sun Jan 23 21:47:23 EST 2000 | Jeff Sanchez
Hey Dave, If ya wanna feel my pain come help build these little babies......hehe. Thanks for the process. I will print your thread and give it a shot. It sounds good to me. I am not so sure if I can get them to inlarge the pads but I can try? The pad
Electronics Forum | Mon Jan 17 04:08:48 EST 2000 | Stefano Bolleri
Same problem for me. I'm a registered user, but when I fill out the "login" box, I get back to the main page as nothing had happened. And of course, not even the link to the e-mail section. I had problems like that in the past, due to not accepting c
Electronics Forum | Fri Jan 14 03:52:34 EST 2000 | Scott Davies
To any users of Camalot Adhesive Dispensers... Do any of you know where I could get hold of the spring loaded magnetic board supports used on, for example, the 3800 machine. Camalot's representatives here in the UK, Speedline, are asking a ridiculou
Electronics Forum | Thu Jan 13 12:27:59 EST 2000 | Dave F
All things are possible Grasshopper. You have two choices: 1 Some no-cleans are cleanable. Talk to your sales rep. 2 Rosin based fluxes are cleaned in hi-rel aps, but not cleaned in many less than hi-rel aps. Be aware that in both instances, you
Electronics Forum | Thu Jan 06 15:21:40 EST 2000 | Dick Casagrande
When going to a subcontractor for a board with mixed technology, primarily SMT, does anyone have a rule of thumb on pricing. So much per SMT component + so much for thru-hole + setup, of forget setup just use the component count. I'm just trying to g
Electronics Forum | Thu Jan 06 17:50:08 EST 2000 | Jeff Ferry
Greg, Check out Circuit Technology Center in Haverhill MA. We have 3 Air Vac BGA Rework systems and 1 Nicolet X-ray system. We offer either\or BGA rework services and X-Ray services. You can get a little more info at http://www.circuitnet.com/cat
