HI Ivan! The purpose of the gold is to "protect" the Pd surface from reacting with the environment. Pd is a "getter" material and can form a number of "really neat" surface films, both oxide and/or organic films, depending on the environment. Dave Hillman Rockwell Collins [log in to unmask] Ivanoe Pedruzzi <i.pedruzzi@LABEL GROUP.COM> To Sent by: TechNet [log in to unmask] <[log in to unmask]> cc Subject 11/11/2005 04:36 Re: [TN] Gold plated components, AM what a pain!! Please respond to TechNet E-Mail Forum <[log in to unmask]> ; Please respond to Ivanoe Pedruzzi <i.pedruzzi@LABEL GROUP.COM> But Werner, the 150 A is over Pd, does the Pd have different properties in terms of oxidization, hence, soldering? just for my understanding. THX, Ivan Il giorno 10/nov/05, alle ore 23:16, Werner Engelmaier ha scritto: > I agree that 150 Angstroms of Au "is pretty darn thin"--the problem > is I see > most layer thicknesses in the 500 to 1,000 A range. A 150A layer of > au would > not protect the Ni from oxidizing. > > > > Werner > > --------------------------------------------------- > 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 > ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------