Electronics Forum: ionic limit (Page 1 of 4)

Ionic Contamination Acceptance Criteria

Electronics Forum | Thu Dec 16 09:59:47 EST 2004 | saragorcos

Hi there - unfortunately, there are no good cleanliness specs available mainly because clealiness requirements are case sensitive - you should talk to Terry Munson at 765-457-8095 - he can definitely give you advice on Ion Chromatography, SIR, ROSE t

Ion Chromatography (IC) qualification

Electronics Forum | Thu Apr 14 09:39:41 EDT 2011 | blnorman

ROSE has the advantage in that it does have a specific acceptance criteria (J-STD-001), whereas the IC does not. ROSE allows the test to be run at ambient or at an elevated temp, IC requires the component/board/assembly to be "cooked" for 1 hour @ 8

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

Water soluble mask for wave

Electronics Forum | Thu Dec 17 03:10:34 EST 2009 | tod1967

Chemistries are limited for WS Mask. Try looking/changing other components, trying different flux types is easy, identify water cleanliness, is it ionic/no-ionic...probably is benign. Could be a plating reaction which is tough to investigate. Call

IONIC CLEANLINESS SPEC FOR BARE PWBs

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

Re: Mil-P-28809

Electronics Forum | Mon Oct 11 12:27:48 EDT 1999 | Mike Demos

Thank you all for your replies. I guess my age in this industry is showing. This military spec. does not appear to be in existance. So, let me make my request a little more to the point: Is anyone aware of a specification specifically referencing

Cleaning OA flux with vapor degreaser

Electronics Forum | Tue Mar 09 14:53:16 EST 2010 | davef

Resistivity Of Solvent Extract [ROSE] is a bulk ion contamination [BIC] test method. It should thought of as a process control tool used to assess ionic contaminants. Don't consider it an acceptable tool for establishing 'GO-NOGO' limits. The stan

Re: Ionic testing and No-Clean flux

Electronics Forum | Sat Feb 05 09:08:18 EST 2000 | Dave F

Casimir: Let me expand on something that I said in my response to your thread on ionic testing. Generally, no-clean people don�t use ROSE testing as part of their process control, because the ROSE test is essentially washing your board in DI/IPA �

Re: Mil-P-28809

Electronics Forum | Mon Oct 11 15:06:39 EDT 1999 | Dave F

| | Thank you all for your replies. I guess my age in this industry is showing. This military spec. does not appear to be in existance. So, let me make my request a little more to the point: | | | | Is anyone aware of a specification specifically

Re: Wow! Those are low limits.

Electronics Forum | Thu Nov 11 17:17:11 EST 1999 | Boca

1. Most ionic testing is measured in NaCl, that is, the ionic residues are quantified in terms of NaCl equivalence. The test does not determine what the ionic residue is, just its relative strengh. 2. I use IPC cleanliness specs on OA fluxes but n

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