Hi Matthew,
The soldermask ink itself is either glossy or matte texture (like wall
paint). Our customers simply reference matte or glossy in their fab notes
(usually matte).
Don't know if any spec references the various textures.

Regards,
Mark

        -----Original Message-----
        From:   Matthew Park [SMTP:[log in to unmask]]
        Sent:   Tuesday, May 10, 2005 2:27 PM
        To:     [log in to unmask]
        Subject:        [TN] PCB soldermask spec

        Hi all,

        Which IPC document spells out soldermask surface finishes like
glossy,
        semi-matte or matte? IPC-SM-840 does not mention any spec's about
        soldermask surface finishes. How do PCB vendors create matte surface
        finish? Is there any industry standard I can use when specifying a
        soldermask surface finish like matte?

        I am used to seeing glossy soldermask finish. What are
        process/manufacturing issues for using matte soldermask finish ?

        Thanks
        Matthew P.

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