Electronics Forum | Fri Nov 05 09:52:44 EST 1999 | Dave F
John: Three things: 1 You are correctamundo!!!! What's the difference between slopping alcohol on dirty boards and washing dirty boards? Clean boards!!!! By the time those very nice people get done with their alcohol cleaning (a nip for the boar
Electronics Forum | Sun Oct 31 08:27:09 EST 1999 | Dave F
David: I think it's great that you are getting that much barrel fill with STEEL leaded components!!! So, what kind of steel are the leads are made from? How much corrosion is on the leads? Frankly, I don't believe that the leads are made of steel
Electronics Forum | Fri Oct 29 12:18:45 EDT 1999 | stefano bolleri
We have also placed BGAs with IP-2, with no problems. Ours were 50 mil pitch PBGAs, and as Doug says the perimeter is more than enough to place the part. We have only placed from matrix tray so far. The ONLY problem is the center array, for parts tha
Electronics Forum | Fri Oct 29 18:24:46 EDT 1999 | B.Smith
JC, We 'had' this problem previously, but eliminated it for good by using the following: (1) Create a procedure for part orientation that follows IPC standards. Give a copy of this procedure to your receiving department, your buyers, as well as all
Electronics Forum | Thu Oct 28 09:41:05 EDT 1999 | Dave F
Michael: Surface mounting technology is a broad topic. People make careers focusing on very narrow elements of the technology. I'm certain that writing an overview of SMT would not win you many points from your instructor, because that element of
Electronics Forum | Wed Dec 01 01:15:44 EST 1999 | Jeff Skeith
dave, you are right on. a blow torch isn't needed to light a fire. a small coplanar aluminum block works extremely well. my dept fixes thousands of fine pitch parts to to less than 4 mils from low lead to high lead every month. all we use is a sm
Electronics Forum | Tue Oct 26 16:51:18 EDT 1999 | John Thorup
Hi nards I'm not quite sure what your question is. If you mean is paste volume more important than the reflow profile the answer is no. Belt speed is just a part of creating a reflow profile and all aspects I.E. pasting, placing and reflow are jus
Electronics Forum | Mon Oct 25 17:06:18 EDT 1999 | William
Mario, If you are looking for a cheap press to do press fit connectors, then you are asking for trouble. Now, and in the long run. ASG out of West Palm Beach makes a very good press. We bought a 5 ton version and are able to press up to about 2500
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 | 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
