I have an application where I wish to dissispate heat from one side of the PCB through to a heat sink on the other side.. Someone has mentioned filled via's.. ie vias that are filled with some sort of thermal paste by the PCB fabricator. Has anyone had any experience with this, or know where I can find more information? Any other suggestions would also be welcome. Thanks in advance. -- Craig McGlinchy PCB Designer Tait Electronics Ltd Ph. (64) 3 357-0779 Fax (64) 3 358-0432 ############################################################## 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 Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################