Abstract: A composite substrate material useful for fabricating printed circuits is provided comprising a polymeric film having at least one surface modified by plasma etching, a first thin metal nitride layer, a thin second metal nitride layer, and an electrically conductive third metal layer.
Type:
Grant
Filed:
March 26, 1998
Date of Patent:
March 28, 2000
Assignee:
Alchemia, Inc.
Inventors:
Thomas F. Burke, Merwin F. Hoover, John H. Bradshaw