217 ions results

Electronics Forum: ions (Page 6 of 22)

DI water testing?

Electronics Forum | Thu Aug 30 19:39:15 EDT 2007 | davef

Rob If your supplier replaces your carbon bed when the ion beds require replacement [when you call after the light goes red], it will not hurt anything, except increase your costs.

Ionic Contamination Tester

Electronics Forum | Thu May 15 13:13:16 EDT 2008 | arminski

thanks a lot sir davef. which is better between the two, static or dynamic? localized testing (C3) or bulk testing (Omegameter/Zero Ion)? do I really have to purchase this unit despite having an aqueous cleaner? thanks again...

SMT Connector, Placement Issues

Electronics Forum | Fri Oct 03 15:51:45 EDT 2008 | davef

We agree with Huss. Your clearance 8 to 11 thou between lead and hole make ion difficult. And that assumes the 0.027 to 0.030" hole size is the finished, not drilled size. It just gets worse if this hole size doesn't consider plating.

how to measure Adhesive strength

Electronics Forum | Mon May 11 16:23:08 EDT 2009 | jorge_quijano

Yes, this is for a double sided board, (bottom) the issue is that the board has a lot af hand ion components before wave soldering, and some components are falling off within this process, even if I hit the 0603s with my finger It falls.

Washing of Misprinted PCBs

Electronics Forum | Wed Aug 26 13:27:48 EDT 2009 | stepheniii

My understanding is the resin does a one to one ion exchange. And that when it becomes saturated, it does nothing. edit, and you do mean tap water, not toilet water, right?

ionic residues on the surface of printed circuit assemblies

Electronics Forum | Wed Sep 02 11:54:34 EDT 2009 | davef

You can determine empirically what will work. * Use ion chromatography [IPC-TM-650 2.3.28] to evaluate the residues and determine if the residues must be removed. * Use energy dispersive spectroscopy for the elemental analysis or chemical characteriz

Ion Chromatography (IC) qualification

Electronics Forum | Wed Apr 13 09:15:07 EDT 2011 | blnorman

Have used IC for years, but I'm not familiar with that, ROSE maybe. Its a stretch, but maybe R/O/I would be rosin/resin, organic, or inorganic for the type flux being used?