Electronics Forum | Fri Sep 20 12:37:47 EDT 2002 | davef
I love this!!! * A bunch of forum users complain about the misuse of old threads. * 'Pointy-Headed Boss' says, "We're going to require registration [that has nothing to do with the complaint and will make the forum less accessable] and we're not goin
Electronics Forum | Tue Sep 17 12:32:36 EDT 2002 | ksfacinelli
I have an assembly that requires hand solder a part that is in very close proximity to a plastic housed PCI connector. I am using a Metcal iron and am interested if anyone has developed a shroud that will allow soldering in a tight cavity but not me
Electronics Forum | Tue Sep 17 12:55:42 EDT 2002 | ksfacinelli
This is what is referred to as a butterfly product connectors on both sides we are experimenting with different production techniques but we are currently having to hand solder these parts. Today however we are needing a solution to fit an iron in a
Electronics Forum | Tue Sep 17 13:05:05 EDT 2002 | stepheno
On the Iron shaft? Why not on the connector to be protected. Actually now that I think back, I seem to remember seeing Kapton tape used on a part in a similar situation, but that I believe was a rework situation. Putting Kapton tape on every assembly
Electronics Forum | Wed Sep 25 02:52:25 EDT 2002 | jkhaiar
Hi There Good point from all contributers.Depending on the coast effect and production ability we used a heat resistant coating directly applied to the plastic base of the PCI connector in a very dense SMT PCB.we used a short pulse soldering by run
Electronics Forum | Tue Sep 17 15:03:33 EDT 2002 | ccross
I am working with fine pitch components (15-20 mil) and having soldering problems and would appreciate some opinions. 1) How much of an effect does pad size have on bridging? 2) How much of an effect does solder paste grain size have? What is the re
Electronics Forum | Wed Sep 18 06:53:05 EDT 2002 | CH
1) For solder short, pls check the paste height. Too much vol will cause short. For 15 mils use 5 mils thickness stencil if possible. Check profile preheat time to prevent hot slumpof the paste. 2) type 4 powder will be better for 15 mils pit
Electronics Forum | Wed Sep 18 18:48:33 EDT 2002 | davef
Fabs can produce a solder mask web between 20 pitch leads, but I've never seen a web for 16 pitch leads. Although, I would like know a supplier that can lay-down a fine web. Minimum solder mask web width is about 0.004 thou. An absolute mininum o
Electronics Forum | Wed Sep 18 15:13:17 EDT 2002 | davef
Effects of Gold (Au) on Solder Properties Concentration Range in Weight Percentage w/o Au in Sn63/Pb37 Solder [A Sugarman/Loranger] * 2.0 - 3.0% Spreadability and fluidity of solder reduced (1) * 3.0% Highest acceptable concentration of Au in solder
Electronics Forum | Fri Sep 20 16:25:47 EDT 2002 | bdoyle
ok time for a "what if" What if someone came back a year after a question was posted. The question dealt with a problem that this person had but didn't exactly cover everything. Would it be better for this person to post a new thread (and then mig
