Dave,

We currently specify MATTE LPI to the board mfg. and have had no
problems or confusion in receiving matte instead of glossy.  I am
unaware of any classification that describes this, though.


>----------
>From:  Dave Schaefer[SMTP:[log in to unmask]]
>Sent:  Monday, September 22, 1997 2:25 PM
>To:    [log in to unmask]
>Subject:       [DESIGNERCOUNCIL] LPI Soldermasks
>
>Are there any LPI soldermask experts out there?
>
>Our manufacturing group has a preference to "MATTE" finish
>solder masks over "GLOSSY" types.
>
>My questions are:
>
>        1   How to properly specify the "MATTE" finish -
>            it would seem inappropriate (and confining) to
>            call out a specific manufacturer's product.  Is
>            there any general classification which describe
>            this type of product in IPC-SM-840?
>
>        2   What feedback could be offered (pros/cons) to
>            the use of one type over the other.
>
>Thanks,
>--
>DAVE SCHAEFER
>SENIOR PWB DESIGNER
>BROADBAND NETWORKS INC.
>37 STEVENSON ROAD
>WINNIPEG, MB  R3H-0H9
>
>PHONE   : (204)982-8480 ext 298
>FAX     : (204)982-8487
>email   : [log in to unmask]
>
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