Hiya folks, I have been approached by a company that are suggesting that we use "Silver Through Hole" technology instead of our usual PTH. As a manufacturer of fire detection equipment I am concerned about reliability and long life etc. I am seeking others knowledge & experiences with this plating method. Additionally we only ever use FR4, and it is being suggested to use FR4 & CEM laminates and I would like to know the good & bad features of these. Many thanks :- Matthew Lamkin Printed Circuitboard Draughtsman Protec Fire Detection PLC. Protec Hse, Churchill way, Nelson, Lancashire. England UK. BB9 6RT Email [log in to unmask] (please only use this email address when sending to or replying to this message) Tel: 01282 717393 - Fax 01282 717273 Owner http://www.egroups.com/group/cadstarusers --------------------------------------------------------------------------------- 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 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 ---------------------------------------------------------------------------------