Oops, should have said /98. Slash sheets are better than nothing, but I always find them playing the lowest denometer and not going far enough to be a tight description of all the material parameters that we are usually face with. For example, Dk and Df over say 1MHz to 1GHz(or 10GHz) and at a specific resin content. Volume and surface resistivites that are closer to real materials would be really useful for sensitive analog designs. Best Regards David Greig ______________________________ GigaDyne Ltd http://www.gigadyne.co.uk ______________________________ -----Original Message----- From: David Greig [mailto:[log in to unmask]] Sent: 02 November 2005 19:29 To: 'TechNet E-Mail Forum'; 'James TerVeen' Subject: RE: [TN] board material for high temp 4101A/96 would be a good starting point, until 4101B comes out. Look for phenolic resin or non-dicy systems. All the majors have newish materials. Td >= 300 is a useful metric, and I assume that all 4101B sheets will have this and Tg as well (what about having relative moisture absorption rates?). Best Regards David Greig ______________________________ GigaDyne Ltd http://www.gigadyne.co.uk ______________________________ -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of James TerVeen Sent: 02 November 2005 19:14 To: [log in to unmask] Subject: [TN] board material for high temp What does everyone us for board material for High temperature solder applications. We have a new product that will require the use of high temperature solder. Will the use of conventional FR4 be sufficient. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 ----------------------------------------------------- -- Virus scanned by Lumison. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 -----------------------------------------------------