Electronics Forum | Thu Oct 31 15:32:33 EST 2002 | slthomas
Whoa, I have (for a long time) been under the impression that lead can only be absorbed via the mucus membranes, not through skin as in the hands. Did I miss something?? Not that I behave would much differently, other than donning gloves whenever I
Electronics Forum | Mon Nov 04 10:14:49 EST 2002 | blnorman
We manually handle boards all the time (repair, clean misprint solder paste, etc.). The workers know to handle with gloves, but it's a rarity that they do. We also use hand lotions in the plant, and a couple of times, lotion residue has shown up on
Electronics Forum | Sun Nov 10 22:31:53 EST 2002 | caldon
Staking and Conformal Coating Training Program is provided by Soldering technology. http://www.solderingtech.com contact Mel Parrish or Dan Foster at : Soldering Technology International, Inc 102 Tribble Drive Madison, AL 35758 Telephone: (256) 461-9
Electronics Forum | Thu Nov 14 09:24:07 EST 2002 | joconnell
What about when debugging the board I recently saw a case where we damaged a board between - 5-10 cycles of the fixture It's a catch 22 - where you need high force probes to breal the OSP - but the copper is hard surface, not like the solder HASL a
Electronics Forum | Wed Nov 20 10:33:14 EST 2002 | dphilbrick
Adam Generally the answer is yes. But there are many considerations. First a couple of questions 1 what flux are you using 2 Do you have top side pre heat in your wave solder machine 3 what is your measured top side temp. 4 what is your dwell time
Electronics Forum | Fri Nov 22 23:50:10 EST 2002 | GSW
Hi, Europeon mandate has been passed to enforce lead free from June 2006 i guess. The japanese manufacturers have long implemented lead free and most of the component manufacturers have already gone lead free. I will post more specific links later.
Electronics Forum | Sat Nov 23 08:10:43 EST 2002 | jax
BS4292: Electroplated Coatings of Gold and Gold Alloys Gold and gold alloys for engineering purposes Single, double or multilayer electrodeposited coatings on metallic and non-metallic materials for electrical, electronic and other engineering appl
Electronics Forum | Thu Dec 05 17:45:31 EST 2002 | Gris
Hi, Is the limit for " 10.07 " for assemblies ? I guess we need to calculate how much ionic residue the boards see after assembly and cleaning. and then calculate back to the board spec if i am not mistaken ? For bare fabs we have to access the li
Electronics Forum | Thu Dec 05 22:46:39 EST 2002 | davef
While J-STD-001 specifies an upper limit for acceptance of assembly, we use Resistivity Of Solvent Extract testing as a process control. In truth, this "LT 10.07 �gm/sg in NaCl equivalent" measurement has substantial limitations, not the least of wh
Electronics Forum | Mon May 10 09:51:47 EDT 2004 | davef
Yes These instruments are intended for process control. So, it's unrealistic to attempt to correlate readings between machines. Read the EMPF report that Cal recommends here in this thread: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID
.gif)
