----- Begin Included Message -----

From: "D. Rooke" <[log in to unmask]>

I was approached today by a request as to whether we could supply selective
solder strip boards. These boards were reflowed selective solder with hard
gold plated fingers. I hadn't heard of this for a number of years since the
advent of HASL and I was wondering whether there is still widespread use of
this process. Can any users or manufacturers of selective strip confirm its
use in their operations?

----- End Included Message -----

Mr. Rooke,

        Our Electronic Systems Sector default finish is tin-lead electroplate
and fuse with solder mask over bare copper which requires selective solder strip.
Our Communications Systems Division is specifying HASL more and more often.
Some of our suppliers can still do selective solder strip, some can (or will)
not.

                         |
                        /|\
                       / | \
                      /  |__\      /\
                     /____@_\      |
                  ~~[________)~~
~~~~~~~~~~~~~~[]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Michael L. (Mike) Holmes
Charter Member, Space Coast Chapter, IPC Designers Council

                                MS 1-5852
Designer 3                      Harris Corporation
PWB Design Group                Government Communications Systems Division
Digital and Electronic          2400 NE Palm Bay Road
Packaging Section               Palm Bay, FL 32905

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