Polyimide is a complete resin/curing agent system and is a C stage resin meaning it is full cured. Polyamides are a curing agents for epoxies. They are described on page 61 as preponderantly amines according to the book Epoxy Resin by Irving Skeist (1958) Wrom: YUCDDJBLVLMHAALPTCXLYRWTQTIPWIGYO To: <[log in to unmask]> Sent: Wednesday, March 13, 2002 6:29 PM Subject: Re: [TN] High Rel BGA Guidelines > Bob, > > What's the difference between polyimide and polyamide? > > David A. Douthit > Manager > LoCan LLC > > "Crain, Bob" wrote: > > > We may soon be adding BGAs to our approved parts list for some programs. We > > use polyamide boards and require electrical test under vibration and thermal > > cycling. What are the most important factors to address to maximize our > > success? > > > > -------------------------------------------------------------------------- ------- > > Technet Mail List provided as a free service by IPC using LISTSERV 1.8d > > 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL > > To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest > > Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives > > Please visit IPC web site http://www.ipc.org/html/forum.htm for additional > > information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 > > -------------------------------------------------------------------------- ------- > > -------------------------------------------------------------------------- ------- > Technet Mail List provided as a free service by IPC using LISTSERV 1.8d > 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL > To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest > Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives > Please visit IPC web site http://www.ipc.org/html/forum.htm for additional > information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 > -------------------------------------------------------------------------- ------- > --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------