Electronics Forum | Fri Aug 13 13:50:53 EDT 1999 | Brian Wycoff
| | | | | | Hello | | | | | | | | | | | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | | | | | | 100 du
Electronics Forum | Thu Aug 12 10:50:19 EDT 1999 | John Thorup
| Hello everyone, | | I would like to know more about the so called FACETED or "Mirror ball" surface apperance. Its cause and how to eliminate / corrective actions for it. | | pls. help... | | thanks and best regargs, | ...Omat | Omat While I hav
Electronics Forum | Tue Aug 10 11:44:20 EDT 1999 | John Thorup
| Does anyone use reflow profilers? Are they a good investement or is trial and error sufficient? | | Does anyone have any suggestions on profiles to try? Thanks. | Danielm I would hazard a guess that most if not all of us production folk do. I c
Electronics Forum | Mon Aug 09 19:15:49 EDT 1999 | ScottM
| Dear all, | | Has anyone come across an electronic source for SOT23 etc; part markings and their meanings. Obviously, I could wade through the various data books.........but I don't really want to.....yet. | | Thanks in advance, | | Chris. | Tr
Electronics Forum | Thu Aug 05 16:59:55 EDT 1999 | Earl Moon
Mike, Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no good reason. I
Electronics Forum | Thu Aug 05 17:24:44 EDT 1999 | M Cox
| Mike, | | Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no good reas
Electronics Forum | Wed Aug 04 22:35:32 EDT 1999 | ScottM
| What oven temperature should be used to reflow solder (Sn63Pb37) on a PC board (0.075" to 0.100" thickness) in 5 to 10 minutes? | D... is correct -- it's all dependent on your paste and your oven. Call your paste supplier (each one has a technica
Electronics Forum | Mon Aug 02 20:47:47 EDT 1999 | Dave F
| If you are interested in thermal profiling visit our website www.egsweb.it | Claudio: Thank you for your posting. I'm sure your product is very nice. This is a technical site, it is not intended to be a commercial site, unless the framing of th
Electronics Forum | Wed Jul 28 20:28:26 EDT 1999 | Carlos Palacios
Currently, we are baking any PCB before process on SMT, the 'reason' is to dry any possible humidity that could be inner the PCB, it does not matter if the PCB is multilayer or not. We bake PCB's at 107C for 4 hrs and the board must be process into n
Electronics Forum | Wed Jul 28 14:00:23 EDT 1999 | Mike Konrad
I would recommend Zestron's Vigon SC200. It does not require a rinse as long as you cleaner is equipped with a wash solution filter to filter out the solids. Zestron # is (888) 999-9116. The toll-free # is frequently busy� If so, try (703) 589-11
