Good afternoon all,

All this talk of underfill sparked a reminder of an IPC action item of 
mine.  Unknownst to most of you , I signed you all up on some of my 
committees.  There will be a new task group addressing potting and 
encapsulation, which will meet at the Fall IPC.  We already have conformal 
coat task groups. 

So, I wish to initiate a series of questions and illuminating debate. 
Pardon me if I fall short on the illumination part (leave it alone Dewey).

1.  What would you consider to be a definition of "potting" and a 
definition of "encapsulation"? 

2.  Are there standard definitions for these somewhere?  They don't exist 
in IPC as far as I know.

3.  What would you consider to be the boundary between conformal coating 
and "potting or encapsulation"?  I have my own opinions but want to hear 
yours.

4.  In what class would you consider an underfill to be in?

That's enough homework for now. 

Doug Pauls
Rockwell Collins

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