Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2004-02-24
2009-12-01
Bernatz, Kevin M. (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
Reexamination Certificate
active
07625640
ABSTRACT:
An electromagnetic noise suppressor of the present invention has magnetic resonance frequency of 8 GHz or higher, and the imaginary part μ″Hof complex magnetic permeability at 8 GHz is higher than the imaginary part μ″Lof complex magnetic permeability at 5 GHz. Such an electromagnetic noise suppressor is capable of achieving sufficient electromagnetic noise suppressing effect over the entire sub-microwave band. The electromagnetic noise suppressor can be manufactured by forming a composite layer3on the surface of a binding agent2through physical deposition of a magnetic material on the binding agent2. The structure with an electromagnetic noise suppressing function of the present invention is a printed wiring board, a semiconductor integrated circuit or the like that is covered with the electromagnetic noise suppressor on at least a part of the surface of the structure.
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Gonda Takashi
Kawaguchi Toshiyuki
Taniguchi Atsushi
Bernatz Kevin M.
Harris Gary D.
Ostrolenk Faber LLP
Shin-Etsu Polymer Co. Ltd.
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