http://www.envirosense-inc.com

Enviro Gold 816 is a good inline chemistry and reduces contaminate
levels. 

   



Jeffrey Bush
Director, Quality Assurance and Technical Support

                          76 Technology Drive - POB 1890
                             Brattleboro, Vermont 05302-1890
                                Tel. 802.257.4571.21 Fax. 802.257.0011
                                    [log in to unmask]
                              http://www.vtcircuits.com	



-----Original Message-----
From: Cheryl Tulkoff [mailto:[log in to unmask]] 
Sent: Monday, March 29, 2004 4:13 PM
To: [log in to unmask]
Subject: [TN] Batch Cleaners


Does anyone have any recommendations for batch cleaners?

I need to set up a small specialty cleaning process for a precison
analog card. I have to remove incoming parts contamination (chlorides,
bromides,
sulfates) that our DI water wash process alone cannot remove. These
contaminants are causing leakage resistance failures in a critical part
of the circuit.

Out of three different parts vendors we tested using ion chromatography,
only 1 had a decent level of cleanliness and just barely met
requirements. The lab we used was able to remove the bulk of the parts
contamination with a saponified DI wash.

The part is a $.01 SOT-23 so our vendors are not very motivated to clean
up their act (pun intended). Our current Electovert Aquastorm 100 inline
cleaners cannot handle any chemistry so we're going to try and set up a
saponified cleaning process.

Any suggestions?

Thanks, Cheryl

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Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
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