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June 2009

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From:
Mike Fenner <[log in to unmask]>
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Date:
Fri, 5 Jun 2009 17:52:11 +0100
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Apple and blackberry go lovely in pies :)

Regards
 
 
Mike

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
Sent: Friday, June 05, 2009 1:11 PM
To: [log in to unmask]
Subject: Re: [TN] Coating, Encapsulation, and Potting

Hey, leave Bev alone.  He is being helpful.

And only you would "excoriate" our Blackberry maker with an Apple 
reference. 

Doug Pauls
Rockwell Collins



"Whittaker, Dewey (EHCOE)" <[log in to unmask]> 
Sent by: TechNet <[log in to unmask]>
06/04/2009 03:22 PM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
"Whittaker, Dewey (EHCOE)" <[log in to unmask]>


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Subject
Re: [TN] Coating, Encapsulation, and Potting






Boy, what a bunch of Teacher's pets. This esprit de core gives new
meaning to praise him with an Apple.
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bev Christian
Sent: Thursday, June 04, 2009 12:11 PM
To: [log in to unmask]
Subject: Re: [TN] Coating, Encapsulation, and Potting

Doug,
I too do not know of any official definitions of either, but let me
propose them:

Encapsulation is partial immersion of a component in an organic material
added for thermal, shock, humidity, security and/or ESD protection.

Encapsulation is total immersion of a component in an organic material
added for thermal, shock, humidity, security and/or ESD protection.

Bev
RIM

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
Sent: Thursday, June 04, 2009 2:32 PM
To: [log in to unmask]
Subject: [TN] Coating, Encapsulation, and Potting

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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