Immersion silvers are self-limiting, and always much thinner than ED. They vary from 5-10 millions of an inch. Rudy Sedlak Eric Kalgren <[log in to unmask]> wrote: Good morning TechNet, One of our drawings for an RF PCB calls out "Silver Plate per QQ-S-365, electrodeposited, Type I, 0.0003" thk." The supplier that we are getting quotes from says he can't do electrodeposit and wants to supply immersion silver boards. Are these two processes equivalent? I searched the archives and cannot find any references to ED silver. Has immersion replaced this process? (Our drawing is pretty old.) The board material is Duroid 5880. would this make a difference? Thanks for your help! Eric Kalgren Manufacturing Engineer Atlantic Microwave Phone: 978-779-7062 Fax: 978-779-0101 --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------- Do you Yahoo!? --------------------------------------------------- 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 ----------------------------------------------------- Check out the new Yahoo! Front Page. www.yahoo.com