Phil, Zinc will grow "whiskers" just like tin! David A. Douthit Manager LoCan LLC Phil Bavaro wrote: > Here is a question that I do not recall having come across ever before. > > A mechanical designer has posed the question of substituting zinc in place > of a copper as a raw material. This part will be required to be soldered > down to the circuit card it interfaces with as this is an RF assembly. > > Since Zinc alloys are very good for casting definition, is it also possible > to use Zinc as the base metal. > > Or does it require sealing with nickel and then tin plated in order to be > used for soldering applications? > > I realize that some of the new leadfree alloys contain low percentages of > zinc but this question is oriented towards high contents of zinc in the alloy. > > I will keep researching this topic but my first thoughts were that the > experts on this panel should be able to point me in the right direction at > least. > > Phillip A. Bavaro > QUALCO/\/\/\/\ Incorporated > CCA Technical Support > Engineer, Senior > [log in to unmask] > Pager (858) 271-3640 > Tel (858) 658-2542 Voice mail > Cell (858) 682-6434 (offsite, after hours) > Fax (858) 658-1584 > > --------------------------------------------------------------------------------- > Technet Mail List provided as a free 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/html/forum.htm for additional > information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 > --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------