In answer to question 4 I would put it in the category of underpotting...... John Burke (408) 515 4992 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls Sent: Thursday, June 04, 2009 11:32 AM 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 --------------------------------------------------- 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 -----------------------------------------------------