Electronics Forum | Fri Jan 11 17:14:13 EST 2002 | davef
We have one product with electroless nickel, immersion silver solderability protection. We do not purport to be experts, but like many things, have seemingly boundless opinions. Side note: There are a least three different [maybe five] imm silver
Electronics Forum | Tue Feb 19 19:36:21 EST 2002 | davef
You weren�t clear but I assume the problem is not widely distributed and affects only a few parts on each board. Do this trick: * Cut a ~1� piece of fairly serious wire, like 18 or 12 AWG. * Strip the insulation. * Gear-up with gloves, glasses, and
Electronics Forum | Mon Mar 25 15:51:04 EST 2002 | davef
ASQC re-numbered the once free (taxpayer sponsored development) MIL-STD-105 as ASQ-Z1.4, slapped their own cover on it, and now charge $40 or $50 for the same document! The standards are identical, so see if you can get one of the old �MIL-STD's� and
Electronics Forum | Sat Mar 30 17:27:45 EST 2002 | davef
You should not have glue "all over the place." Tou should not have glue on solderable surfaces. It sounds like you are stringing glue from one dispense location to the next. Search the fine SMTnet Archives [there might be something there]. Read a
Electronics Forum | Thu May 09 17:13:10 EDT 2002 | davef
We are converting all our ENIG to imm silver. CHARACTERISTICS * Nominal thickness of the deposit will be 0.1 to 0.3 microns. * Deposit is flat and uniform * It will withstand multiple heat cycles in assembly, which can be problematic with tradition
Electronics Forum | Mon Oct 21 22:15:36 EDT 2002 | davef
First, SIR data is heavily dependant on the test pattern selected. Be very careful when comparing the results of resistance readings taken from different geometric patterns. Second, if yer talkin': * Bare boards, yupper. * Finished assemblies impor
Electronics Forum | Thu Mar 25 12:20:21 EST 2004 | Mike Konrad
OK� Nap time�s over! Technically speaking, water soluble flux is just that, soluble in water. Technically speaking, one does not need a saponifier or any other chemical agent to remove water soluble (OA) flux residues. However, one must conside
Electronics Forum | Tue May 25 20:29:41 EDT 2004 | Grant
Hi, That's the interesting point, and I think it's got to do with the design of the placement. You have 8 pick heads in the Hydra head, and they all line up with a tape in the feeder. So in theory when it can pick all 8 components at once, and the
Electronics Forum | Tue Aug 31 17:36:36 EDT 2004 | davef
NO-LEAD COMPONENTS WITH LEAD SOLDER ISSUE: We agree with Russ. We've dicussed this several times on SMTnet. For instance, look here http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=25394 LEAD COMPONENTS WITH NO-LEAD SOLDER ISSUE: We disa
Electronics Forum | Tue Mar 13 09:29:44 EDT 2007 | realchunks
Hi Long, Cmiller is right, check out the vendors and ask for lots of info, they'll flood you with it. You also mite ask to see their equipment working in a facility near you. Also check out IPC-A-610 and J-STD-001. Get to know the different termi
