Electronics Forum | Mon May 05 19:45:39 EDT 2008 | hegemon
Yep, many of us have seen this firsthand. I had a customer who fouled up a job, then "found" a deal on some (10) very expensive Xylinx parts, and badly needed these parts to complete the job. Everything looked good afterwards, but nothing worked. X
Electronics Forum | Thu May 08 09:56:09 EDT 2008 | mjz289
I agree with dlm. We have been using Hakko irons for our lesd free soldering for about 6 months now. They work great and the tips are relatively inexpensive - $9 to $15, plus they last a very long time compared to our previous brand that we used. The
Electronics Forum | Fri May 09 14:56:37 EDT 2008 | markhoch
The paste dispensers work well as long as the humidity in your shop is properly controlled. If it gets too humid, and the paste gets "soupy", then it will take less air pressure to dispense it onto the stencil. Paste dispensers use a controlled, pre-
Electronics Forum | Thu May 08 12:28:37 EDT 2008 | adamcrum
The rep from the EPA told our director of operations that it can not be faught. Apparently he was really rude and basically said (with his team of over paid lawyers there of course) that the one company that tried to fight one of these fines ended up
Electronics Forum | Wed May 07 01:50:03 EDT 2008 | andrzej
We have received in one lot PCBs with defect of not wetting properly. Pads were finished with HASL but they were matte rather then shiny (attachment). For me looks like they are oxidized. Interesting is there was just top side with such defect. We h
Electronics Forum | Thu May 15 06:56:52 EDT 2008 | locostpp
Thanks Sarason, Laser alignment of components was actually our first attempt - it certainly offers speed and accuracy, but purchasing cyberoptics units would blow the budget & getting round their patent not really an option. I've seen the Essemtec
Electronics Forum | Wed May 21 09:03:52 EDT 2008 | bing007
I have been confronted with a MPM with a rheometric pump head on and have not had much to do with these. It is giving varying results on the down line paste AOI and is not responding very much to changes in pressure, speed etc. It is a 16inch pump, w
Electronics Forum | Fri May 23 16:38:28 EDT 2008 | wayne123
Well if you are getting bridges under, one thing that we used to do was flood the part with flux and then run it back through the reflow. Keep in mind we were not a High reliability manufacturer. This practice didn't hurt OUR boards, and most of the
Electronics Forum | Wed May 28 08:46:39 EDT 2008 | ck_the_flip
I've talked to several Applications Engineers and Chemists from a couple of different paste manufacturers and they confirm that the profiles on their data sheets are nothing but guidelines. It's up to you, Process Engineer or Process Tech, to develo
Electronics Forum | Thu May 29 13:20:47 EDT 2008 | slthomas
All of our new board quotes include a charge for programming that's based on the component quantity and mix of SMT vs. TH. It doesn't take into consideration what it takes to reconcile BOM vs. PCB data inconsistencies, so we eat the cost of resolving