FreeLists / si-list / [SI-LIST] Re: Cross-hatched reference planes

[Jeff Seeger <jseeger@xxxxxxxxxxxxxx>]

Andy wrote:

 > what is "venting"?

In built-up multilayers, which start with a traditional core
laminate, subsequent dielectrics are applied in liquid or semi-
liquid state.  Unbroken copper areas inhibit cure.  Relief is
in the form of "vent" pads appearing as stray anti-pads, or as
a cross-hatch shape.

Sorry that carpal tunnel limits my replies.  Or maybe that's a
good thing.

Best regards,

--

      Jeff Seeger                         Applied CAD Knowledge Inc
      Chief Technical Officer                  Tyngsboro, MA  01879
      jseeger "at" appliedcad "dot" com                978 649 9800

------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field


List technical documents are available at:
                http://www.si-list.net

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu