Hi Michael!

From experience, Kyzen Aquanox XJN works very well on no-clean residues.
Kyzen also has newer formulas such as 4512P and 4520 that works even
better at lower concentrations. Any of the Aquanox family cleans
no-clean residues very well...

-Steve Gregory- 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Michael Forrester
Sent: Wednesday, July 26, 2006 3:15 PM
To: [log in to unmask]
Subject: [TN] Water Cleaning No Clean FLux from a PCBA

      We have a PCBA assembly that requires very low/none ionic
contamination due to high impedance circuitry.  Normally we use a water
soluble flux solder paste and wash the PCBAs.  Our current vendor only
uses Indium NC-SMQ92 no-clean solder paste.  To met the following spec:

Printed Circuit Assemblies shall meet cleanliness standards as per
IPC-A-610 and IPC/EIA J-STD-001.
Testing shall be in accordance with and meet the requirements of IPC/EIA
J-STD-001 Paragraph 8.3.6 or 8.3.7.

they want to use water and Kyzen XJN+ as a saponifier.  Has anyone used
this method of cleaning  a no clean assembly?  If so what was the
result?  Any other suggestions?
Thank you.

Best Regards,

Michael Forrester
Sr. Manufacturing Engineer
LeCroy Corp

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