Earlier, Gregg Klawson asked some questions about when conformal 
coating is needed.  There is a task force (CCAMTF) headed by Jeff 
Koon  of Texas Instruments that is currently addressing this issue.   
Jeff's e-mail address is :
             [log in to unmask]  

The EMPF is a member of this task force along with TI, Allied, 
Ford, Delco, Hughes, Honeywell, Lucent Technologies, MICOM, Seho, 
and Contamination Studies Labs to name a few.  The project is 
still in its  infancy with plans to publish results by the end of 
1997.  Preliminary  tests focused on the  comparison of no conformal 
coating  to parylene in a few specific environments.  Surface 
Insulation Resistance  was used as the descriminating factor; follow 
up will be performed with functional hardware.

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