Electronics Forum | Sun May 10 09:29:23 EDT 2009 | davef
Q1: Can I know is Chromium restricted from RoHS? A1: RoHS Restricted Substances (Pb, Hg, Cr6+, PBB, PBDE, Cd) Q2: Is this chemical will effect the content of Lead free solder? A2: It's possible that the metals that comprise the stainless steel probe
Electronics Forum | Mon Dec 07 11:32:20 EST 2009 | brianksc
Hi All, I am trying to figure out the best way to rework around 2.7K worth of 48pin QFP ICs. I am trying to salvage these ICs from defective PCBA and they have quite a bit of rosin flux on them. Does anyone know how to get the flux off while minim
Electronics Forum | Wed Mar 24 16:54:38 EDT 2010 | stepheniii
J-STD-033B.1 Says "For cavity packages in which water may be entrpped, water clean processes after first reflow can be an additional source of moisture. This may present an additional risk, which should be evaluated." And it talks about derating if
Electronics Forum | Thu Oct 07 07:58:29 EDT 2010 | scottp
The problem is there are also studies showing reduced reliability. Early thoughts were that if you got complete reflow of both solder materials then you'd be fine, but several studies have shown that there's something going on that's not well unders
Electronics Forum | Mon Nov 01 13:43:18 EDT 2010 | jmatty35
I have a question regarding mixing different manufacturers solder pastes. We have a board being built by a CM that we are bringing in house and soldering a final cover onto the PCB. The contract manufacturer is using solder paste A. We want to use
Electronics Forum | Tue Nov 08 21:56:23 EST 2011 | tpappano
Hi Jeff, both units have DC servos, and both appear to have the same vision system, although #2 has an additional upward-looking camera with a high magnification lens for die mounting. If I could make use of your hex files, that would be great sinc
Electronics Forum | Mon Apr 23 07:28:42 EDT 2012 | ccottreau
Has anybody any experience in cleaning the Jupiter 32 LGA in a Aqueous cleaning process (or any kind of shielded GPS Module). The manufacture does not recommend Aqueous cleaning because that length of drying time and that this may leave residue on th
Electronics Forum | Fri Jul 06 05:28:59 EDT 2012 | jsolloway
..... that's very strange. If there were any risk of de-lamination then it would of occurred during the reflow process, surely. Unless the through hole department are using heat guns or wave sodler? I doubt if the sales or planning team are happy if
Electronics Forum | Tue Dec 11 11:59:00 EST 2012 | sarason
The issue is surface tension around the connector. Your tip needs to have more surface tension than the pins of the connector as it forms a cluster when being soldered. When I used to solder superfine connectors with a metcal iron it had a horses hoa
Electronics Forum | Fri Jan 25 13:07:31 EST 2013 | johng
Thank you for replying Phil. We use water only wash at 130°F and at 4 ft/min (about 2 min). They are mostly dried by the hot ait knife and left to air dry until next day. The operators do not wear gloves. When I run a bare board through the same pro
