Merix manufactures boards with Speedboard C. I can tell you it is significantly more expensive than just about anything else you are probably using. Exact material costs are dependent on volume and other factors, but a sheet of Speedboard C is about 20x the cost of an equivalent sheet of FR4 prepreg. There are some special process requirements for Speedboard C that can also add to the cost. Mike McMaster RF Product Engineer Merix Corporation 503-992-4263 ---------- From: Alexis Meehan [SMTP:[log in to unmask]] Sent: Wednesday, February 09, 2000 9:34 AM To: [log in to unmask] Subject: [TN] Speedboard Materials Has anyone out there tried the Speedboard laminates and prepreg for high-speed designs? I'd like to hear from folks who have tried it. Were the results satisfactory? Was there an increase in cost? Thanks in advance for any info you can provide. ******************** Alexis Meehan PCB CAD Mgr. 408-328-4595 [log in to unmask] LuxN, Inc. 570 Maude Court Sunnyvale, CA 94086 ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ############################################################## ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################