OK...  but what's the recommended chemistry (or what choices are there) and
what's the recommended thickness?

Jim Marsico
Senior Engineer
Production Engineering
EDO Electronics Systems Group
[log in to unmask] <mailto:[log in to unmask]>
631-595-5879


        -----Original Message-----
        From:   [log in to unmask]
[SMTP:[log in to unmask]]
        Sent:   Thursday, October 23, 2003 9:17 AM
        To:     [log in to unmask]; [log in to unmask]
        Cc:     [log in to unmask]
        Subject:        Re: [TN] inmmersion silver


        Hi Jim! The 4-14 Plating Processes subcommittee is currently working
on
        specifications for immersion silver and immersion tin. ENIG  was
covered
        with the publication of the IPC-4552 specification. I would
recommend you
        call out the specific immersion silver chemistry, a thickness range
and a
        solderability requirement on your drawing note(s) until the 4-14
committee
        can complete their work. Good Luck.

        Dave




                              "Marsico, James"

                              <James.Marsico@DP        To:
[log in to unmask]

                              .AIL.COM>                cc:

                              Sent by: TechNet         Subject:  [TN]
inmmersion silver
                              <[log in to unmask]>





                              10/23/2003 06:30

                              AM

                              Please respond to

                              "TechNet E-Mail

                              Forum."; Please

                              respond to

                              "Marsico, James"









        Hello Technet:
        What's the best way to specify immersion silver finish on a PWB?  In
        accordance with what?  Thickness?  Anything else?

        Jim Marsico
        Senior Engineer
        Production Engineering
        EDO Electronics Systems Group
        [log in to unmask] <mailto:[log in to unmask]>
        631-595-5879

        ---------------------------------------------------
        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
        847-509-9700 ext.5315
        -----------------------------------------------------





---------------------------------------------------
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 847-509-9700 ext.5315
-----------------------------------------------------