Electronics Forum: ipc tm 650 2.3.28 (Page 1 of 15)

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

Test Coupons & Scrap Pieces for Testing Alternative to Oven Baking - IPC TM 650 2.6 2.8

Electronics Forum | Wed Sep 22 21:15:44 EDT 2021 | djenkins62

Hello Everyone: Heat Can Be Very Damaging to Boards and well as extended oven time can cut into valuable production time. Steel Camel is testing ambient temperature drying to remove diffused and embedded moisture in PCBs. We are seeking scrap pie

Test Coupons & Scrap Pieces for Testing Alternative to Oven Baking - IPC TM 650 2.6 2.8

Electronics Forum | Thu Sep 23 15:49:45 EDT 2021 | stephendo

See if there are any board shops near you. One might provide scraps in exchange for name dropping.

Re: measuring board/assy cleanliness

Electronics Forum | Wed Oct 18 16:33:26 EDT 2000 | Dave F

Mike: An omega meter has very little to do with ion chromatography. * IPC TM-650, 2.3.25B, Detection and Measurement of Ionizable Surface Contaminants is a process control method that washes boards with an isopropanol / water solution and measures

Ion Chromatography Testing Standard

Electronics Forum | Thu Sep 26 15:28:16 EDT 2013 | joeherz

I know - A stimulating topic.... IPC-TM-650 2.3.28 method calls for a PCBA or PCB to be placed into a bag with solution, shake, analyze. Great. There is a method of doing this testing that focuses on a specific area of a PCB or a component where r

Cleaning of PCBA's

Electronics Forum | Fri Apr 15 14:06:24 EDT 2005 | saragorcos

Shean made some good points and offered some good starting resources. Adding to what he said, I would also mention that many times, even a no-clean flux can cause contamination that requires cleaning. Our lab has dealt with numerous cases of client

how clean is clean?

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

Electromigration Testing

Electronics Forum | Sat Sep 04 06:25:07 EDT 2004 | GS

Many Thanks Dave for your patience (GBY). I was just trying to give a chance to our connector Supllier to read few micrograms less of NaCl found with the connectors. But even if using a "bonus formula" they are out of specs. Following it could be i

Electromigration Testing

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, * Ion Chromatography for Ionic Cleanliness, IPC TM 650 2.3.28 Third, I

Re: Criteria for the Omega Mete from Alpha Metals Inc.

Electronics Forum | Mon Jan 08 20:57:52 EST 2001 | Dave F

Are you talking about bare board cleanliness or assembly level cleanliness? Bare board cleanliness is still primarily measured by resistivity of solvent extract (ROSE) using instruments such as Omegameters and Zero Ions. What is considered as "acce

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