Electronics Forum | Fri Feb 23 14:50:14 EST 2024 | carl_p
That link doesn't work for me. From the more you explain - it does sound like an issue I've had in the past on a few different builds. In the end we traced it to a fault with the paste (they were having mixing issues in the chemistry) but they as y
Electronics Forum | Sun Feb 23 14:32:42 EST 2003 | davef
Sources of sulphur in PCB fabrication are: * Some locales have high H2S concentrations in the air. * Metal etching steps that use sulfuric acid or a sulfonated buffering compound may result in sulfate residues. * Sulfates can come from contact with
Electronics Forum | Thu Aug 24 12:35:30 EDT 2000 | Wolfgang Busko
The dilemma with this is that the search in the archive is often not that enlighting as someone might hope. Fact is that each new question (and the answers as well) on old topics adds to the archive making it not better. Well, and than look for the r
Electronics Forum | Fri May 12 11:14:43 EDT 2000 | Michael Parker
I have been following the "net for about six months. In the beginning I asked basic questions and was refered to the archives on occasion. Usually I had already tried, but maybe did not get the correct spelling of terminology which frustrated my sear
Electronics Forum | Wed Mar 22 10:29:15 EST 2000 | C.K.
Larry: I've got extensive experience with solder skips on both 0603 and SOT23 devices. We also installed an "Omega" vibrating wave on our machine, but it didn't really have an impact on solder skips. The major difference that the omega makes is in
Electronics Forum | Wed Jul 18 22:23:44 EDT 2001 | davef
First thing, I wouldn't buy new. There's tons of this stuff out there, the problem is finding the used stuff. One place to look is the SMTnet used equipment sales watteverzits called. Roland knows the name. Most work bench suppliers [eg, Arlink,
Electronics Forum | Fri Dec 17 09:47:10 EST 1999 | John O'Brien
Chuck: Your best resource is the Symbology Research Center in Huntsville AL. In is a research and development facility run by RVSI Acuity CiMatrix, the folks who invented the Data matrix (DM) 2-D code. This facility is unbiased as to technologies and
Electronics Forum | Mon Oct 11 06:00:27 EDT 1999 | Brian
| Folk's, | | I'm just tying up some loose end's on my Master's Thesis on solderballing @ wave soldering and the effect the topography of the mask / PCB has on it. | I was wanting to do a straw poll on you guy's as to the type of resist's you are us
Electronics Forum | Mon Oct 11 13:05:51 EDT 1999 | Dave F
| | Folk's, | | | | I'm just tying up some loose end's on my Master's Thesis on solderballing @ wave soldering and the effect the topography of the mask / PCB has on it. | | I was wanting to do a straw poll on you guy's as to the type of resist's yo
Electronics Forum | Thu Oct 07 16:57:02 EDT 1999 | Glenn Robertson
| | I have a board, 4 spacers needed to be soldered on the board | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there wi
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