Electronics Forum | Mon Jun 28 10:03:22 EDT 2004 | davef
First, welcome to your new job. Second, IPC-TM-650 2.6.14 is only loosely an �Ionic Contamination (Electromigration) Test�. * Electromigration Test, IPC TM 650 2.6.14, 2.6.14.1 * Ion Chromatography for Ionic Cleanliness, IPC TM 650 2.3.28 Third, I
Electronics Forum | Tue Aug 17 13:32:13 EDT 1999 | Brian
| Can anyone help on the subject of de-wetting during the spray coating process. We use PC29M Parts A+B spray coating material, Humiseal tapes and masking dots, Marigold supertouch V70N gloves and Concoat CM533 liquid masking material. We also use a
Electronics Forum | Thu Dec 12 09:21:42 EST 2002 | blnorman
What we did: *Slump-dot diameter and height as a function of time *Print Speed-Vary speed, measure slump and missing/defects *Green Strength-We quantifiably measured tack vs time and we placed components and measure skew by SVS *Cure profile sensitiv
Electronics Forum | Wed Feb 10 12:52:21 EST 1999 | Dick Casagrande
|I'm getting in a little late on this but my 2 cents is: We have been using no-clean flux for a few years now but up till last month were still cleaning (the white residue) our boards (all thru hole). Finally did some investigation and found the flux
Electronics Forum | Thu Aug 19 19:04:55 EDT 1999 | Brian Wycoff
| | Can anyone help on the subject of de-wetting during the spray coating process. We use PC29M Parts A+B spray coating material, Humiseal tapes and masking dots, Marigold supertouch V70N gloves and Concoat CM533 liquid masking material. We also use
Electronics Forum | Tue Aug 17 04:12:32 EDT 1999 | Scott J
Can anyone help on the subject of de-wetting during the spray coating process. We use PC29M Parts A+B spray coating material, Humiseal tapes and masking dots, Marigold supertouch V70N gloves and Concoat CM533 liquid masking material. We also use a Ko
Electronics Forum | Sun May 09 16:25:00 EDT 2004 | gabriele
Military and most commercial standards requires > post-soldered boards to measure less than 10 > �g/in of NaCl (14 when using an Omegameter, 20 > on a Ionagraph, and 37 on a Zero-Ion). > > As Dave > stated, 6.5 �g/in of NaCl is called out in >
Electronics Forum | Tue May 11 07:50:52 EDT 1999 | Graham Naisbitt
| If I clean my assembly and find no visable contamination with the unaided eye, do I need to do cleanliness testing prior to conformal coating? | Douglas, It is highly advisable to test for ionic contaminants because a coating seals in as well as
Electronics Forum | Thu May 26 19:32:13 EDT 2005 | Mike Konrad
Three popular methods: Resistivity of Solvent Extract (ROSE) Test Method IPC-TM-650 2.3.25: The ROSE test method is used as a process control tool to detect the presence of bulk ionics. The IPC upper limit is set at 10.0 *g/NaCl/in2. This test is p
Electronics Forum | Fri Aug 07 01:02:51 EDT 1998 | zeek - just wanna to get a word in here
| | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and t
