Electronics Forum | Wed Jan 04 13:47:11 EST 2006 | russ
To answer your question it was mentioned that allowing the boards to cool slightly between reflow and wash may help this case to eliminate thermal shock from immediately going into colder water straight out of the oven with no cooling. In looking at
Electronics Forum | Sun Feb 05 09:49:11 EST 2006 | Cmiller
We have been using ENIG for 8 years as our primary board finish. We have not seen any issues with tenting the vias. We have used a number of suppliers. The ENIG from China does not seem to solder quite as well in general but only had black pad from o
Electronics Forum | Thu Feb 23 02:46:16 EST 2006 | INGE
It isn't an FDA validation. I think Steve has centered the problem. I have already defined all the steps and all the procedures of the process, but now I must run X boards, Y times, through each piece of equipment (as he said before); the question is
Electronics Forum | Tue Mar 14 13:42:45 EST 2006 | patrickbruneel
If the OSP boards have gone through double reflow I assume that you use an aggressive (halide) flux for wave soldering. SAC 305 is known (search the archives) to dissolve copper faster than other lead-free alloys. This together with an aggressive flu
Electronics Forum | Tue Apr 25 21:29:08 EDT 2006 | TMC
Thanks for all the replies. Rob . . . that's what I was looking to get feedback on; to see if others can program their reflow ovens so that double sided boards only reflow on top during the second pass. Our oven does have an edge belt conveyer so t
Electronics Forum | Tue May 02 05:59:28 EDT 2006 | davef
We agree with Ken's points about off contact / screen versus stencil, but this DHolt is talking stencil [regardless of what is typed about screens]. Comments are: * On "smears under the stencil": smearing happens. It makes us wonder about the frequ
Electronics Forum | Sat May 27 17:21:43 EDT 2006 | smt_guru
Efren, Allow me to make some recommendations. This is my firm's bread and butter, so to speak. Helping startups like yourself achieve their budget objectives, but in the process being innovative and thinking outside of the box. Here are my sugges
Electronics Forum | Tue Jun 20 14:58:22 EDT 2006 | smt_guru
Allow me to make some recommendations. This is my firm's bread and butter, so to speak. Helping startups like yourself achieve their budget objectives, but in the process being innovative and thinking outside of the box. Here are my suggestions----
Electronics Forum | Fri Aug 11 14:48:00 EDT 2006 | flipit
Hi, I live in Minneapolis,MN USA. I was watching the news last night and began to laugh. There was a news story on the benefits of silver in fighting infection and healing. I know first hand that silver fights bacteria. I set myself on fire worki
Electronics Forum | Tue Feb 27 23:50:26 EST 2007 | KEN
Hi James. I do not work in sales. I am a ME in CM....for over 18 years. If you do not have resources to evaluate wave machines should we assume you have limited support resources for your current machines? IF this is the case buying an entry level
