Doug:

I am not aware of any papers on the issue, but we do compliant pinning
through conformal coat every day, and it is quite reliable and repeatable,
provided that the hole size is correctly specified, the plating thicknesses
are correct, the conformal coat is applied to the correct thickness, and
above all, the pin is designed to be used with conformal coating.

One big advantage is that masking and unmasking is minimized. Disadvantages
are that opens and FOD can occur if the any of the coating thicknesses get
out of whack. 

Let me know if you want to discuss further.

Regards,

The other Doug

Douglas Schueller
Technology Support and Development Manager
IPC-Certified EMS Program Manager
AbelConn, LLC
763-536-3612
[log in to unmask]
www.abelconn.com


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
Sent: Wednesday, June 10, 2009 2:59 PM
To: [log in to unmask]
Subject: [TN] Conformal Coat and Compliant Pins

Good afternoon all,

Some questions came up here in a conversation this morning and I wanted to 
ping the Technet group on the topic.

Do you know of papers that have been published on the topic of inserting 
compliant pin / press-fit pin connectors on a conformally coated assembly? 
 Do any of you do this routinely?  If so, what are the benefits and 
disadvantages.

Thanks in Advance.

Doug Pauls
Rockwell Collins

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
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
847-615-7100 ext.2815
-----------------------------------------------------


---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
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 847-615-7100 ext.2815
-----------------------------------------------------