Electronics Forum | Thu Oct 28 20:31:52 EDT 1999 | JC Leigh
Hi all, Been thinking about this problem because it's costed us some errors before. For the same type of parts from different vendors, the polarity of parts in the taping may differ from vendor to vendor. (Actually, we find that parts from most ve
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 Nov 03 22:25:09 EST 1999 | Steve Evers
...Just not sure you'd want to pay for it just yet. NdYAG wavelength, slightly diffused beam, tightly moderated power and amplitude control. Add to that a laser safe enclosure that insists on watching your work through a dark green filtered window
Electronics Forum | Tue Oct 26 18:16:01 EDT 1999 | Dave F
Jerry, I know I'm off target, but I don't care. Three things: 1 We don't see the level of malformed leads that would pay-back a $30k investment in 10 years. (Of course, we haven't talked about volume, but you can't have very much volume, can you??
Electronics Forum | Wed Oct 27 17:10:14 EDT 1999 | Jerry Stafford
Guys, I am not really looking for an automatic system. I am looking for as automated a system as I can get for $30K or less. I would really prefer something under $10K. I just need a way to sample devices to see if the vendor is meeting my coplana
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 | 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
