Electronics Forum: ionic and cleaning (Page 1 of 54)

assembly cleanliness and ionic testing

Electronics Forum | Thu Feb 12 11:57:59 EST 2009 | jmiller

i have searched the forum for hours. read all the threads that deals with cleanliness and ionic testing. (http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=40295) (http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=22603) (http://www.

assembly cleanliness and ionic testing

Electronics Forum | Fri Feb 13 16:13:20 EST 2009 | jax

Many shops require levels for typical component packages on FR-4 or a like substrate to be 2, 9, 15, 1 and 10 mg/in2 for fluoride, chloride, bromide, nitrate, and sulfate respectively. These levels can change for Medical or Automotive.

assembly cleanliness and ionic testing

Electronics Forum | Sat Feb 14 08:21:13 EST 2009 | davef

We believe that it's perfectly resonable for you to define the cleanliness that you require. We recommend that you leave it at that and not define the process or materials that your supplier use in meeting that cleanliness level. Start with a dirty

ionic residues on the surface of printed circuit assemblies

Electronics Forum | Wed Sep 02 16:41:44 EDT 2009 | pcbcleaning

Advanced Cleaning Solutions is a Johnstown, PA based electronic manufacturing service provider (EMS) with more than 3,500 square feet of ESD safe facilities. Our services include precision PCB cleaning and ionic cleanliness testing/verification usin

ionic residues on the surface of printed circuit assemblies

Electronics Forum | Wed Sep 02 02:45:01 EDT 2009 | rocko

Hi All, Let me summarize the key facts and findings: 1) This is not a permanent problem. Only one production batch was affected. The cleaning solution was exchanged and now the cleaning process runs normally. 2) Probably the residues are not ion

ionic residues on the surface of printed circuit assemblies

Electronics Forum | Mon Aug 31 12:37:39 EDT 2009 | rocko

Hi All, As a result of equipment damage I have a problem with a cleanliness of printed circuit assemblies. One whole production batch was polluted by ionic residues because a large amount of hard water had been penetrated in the water-supply system

ionic residues on the surface of printed circuit assemblies

Electronics Forum | Tue Sep 01 20:46:03 EDT 2009 | davef

No, put a thermocouple on the heater and monitor the temperature during cleaning.

ionic residues on the surface of printed circuit assemblies

Electronics Forum | Wed Sep 02 21:57:17 EDT 2009 | davef

contacts for cleaning contractors are: * Petroferm Contract Services [www.partscleaned.com] Franklin, Ky * Aqueous Technologies [www.aqueoustech.com] Rancho Cucamonga, CA * FinePoint Precision Cleaning [www.finepointinc.com] Kokomo, IN * Austin A

cleaning spec

Electronics Forum | Wed Mar 08 14:11:38 EST 2006 | mholz

I am looking for an industry standard �stock� note to place on our printed circuit board assembly drawings that will capture a level of cleanliness for an IPC-A-610 class 2 board assembly. I�m looking for some quantitative spec for cleanliness that w

Water cleaning and Moisture Entrapment

Electronics Forum | Fri Jan 02 08:10:18 EST 2009 | childs

Thanks for the reply Stephen. The time factor sounds logical for moisture invasion during cleaning, probably why there's no articles showing concern about the process. I did try experimenting with some samples and believe it or not could not dupli

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