Electronics Forum | Wed Jun 18 19:31:15 EDT 2008 | mlimberg
Woo10, If you need assistance with profiling in the vapor phase environment, I am with KIC Thermal and we have been working with vapor phase equipment manufactures developing processes and profilers for use in the vapor phase reflow applications. P
Electronics Forum | Mon Jun 16 16:18:44 EDT 2008 | dphilbrick
We have used good industrial dish washers in the past. We washed very dense SMT boards with mulitiple BGA's. they always passed Ionic tests. You can buy these for as little as $500. The less expensive ones won't hold up to 140F water and suponifier b
Electronics Forum | Wed Jun 18 08:57:45 EDT 2008 | more_sunshine
thanks for the post... but are you sure that the type of mask i mentioned is photoimageable and as i understood can be removed from desired places (pads/soldering areas) using uv and developer (which i don't know what material is it). and also the
Electronics Forum | Wed Jun 18 20:27:28 EDT 2008 | davef
No, we not sure if your solder mask is LPI. The article we linked was aimed at solder mask application methods. LPI is the most common mask in use today. So, what kind is it? Green tells you nothing. Solder mask can be a variety of colors.
Electronics Forum | Wed Jun 18 11:29:20 EDT 2008 | 1036
Anybody here please help me solve the problem with my MPM SPM screen printer? We bought a used SPM screen printer recently. When we boot up computer we got a message saying " the mouse is not responeing", and finally the system terminates the progra
Electronics Forum | Thu Jun 19 05:14:18 EDT 2008 | sckee
Hi, Need help on the CCGA solderability criteria.I've actually run a NPI that using CCGA yet not sure whether the solderability is accepted or not. The alloy of the column is 80/20 and the surface of the solder joint is not smooth and shine. By chec
Electronics Forum | Thu Jun 19 12:27:14 EDT 2008 | guqing
Thanks CK. You are right the 200C constraint is absurd, but it's the reality, and the worst is this kind of components will go through lead-free profile. Do you or any body here experiencing the same problem? any body using Vapor phase and having suc
Electronics Forum | Thu Jun 19 15:52:16 EDT 2008 | guqing
So correct me if I'm wrong: you are using a conventional oven (not VP, otherwise you must have mentioned), your big electrolytic caps go through a lead-free profile, which requires 30sec minimum at 230, but your time above 200C on the caps is less th
Electronics Forum | Thu Jun 26 19:38:35 EDT 2008 | chris
Ouch, that hurts Harry. I think you just called me an ass. Okay, I will revise...If you pay less than 15k I wouldn't trust it. Also, if buying used ask for warranty and tech support. I do think MPM is better than DEK. Actually, I'm positive i
Electronics Forum | Wed Jul 09 10:46:44 EDT 2008 | muarty
Consider an Excerra printer. I currently use DEK printers, but also have a lot of experience with MPM printers too. 2nd user I wouldn't look beyond UP2000 or DEK Infinity. But I've also demo'd the Excerra recently and was very impressed, price isn't
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