Electrical resistors – With heat dissipating projections
Reexamination Certificate
2011-08-09
2011-08-09
Mai, Anh T (Department: 2832)
Electrical resistors
With heat dissipating projections
C257S701000, C257S706000
Reexamination Certificate
active
07994895
ABSTRACT:
A resistor with heat sink is provided. The heat sink includes a conductive path having metal or other thermal conductor having a high thermal conductivity. To avoid shorting the electrical resistor to ground with the thermal conductor, a thin layer of high thermal conductivity electrical insulator is interposed between the thermal conductor and the body of the resistor. Accordingly, a resistor can carry large amounts of current because the high conductivity thermal conductor will conduct heat away from the resistor to a heat sink. Various configurations of thermal conductors and heat sinks are provided offering good thermal conductive properties in addition to reduced parasitic capacitances and other parasitic electrical effects, which would reduce the high frequency response of the electrical resistor.
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Office Action for corresponding U.S. Appl. No. 11/848,263.
Final Office Action dated Nov. 19, 2009 in U.S. Appl. No. 11/848,263.
Office Action dated Dec. 10, 2010 in U.S. Appl. No. 11/848,263.
Final Office Action dated May 12, 2011 in U.S. Appl. No. 11/848,263.
Coolbaugh Douglas D.
Eshun Ebenezer E.
Hook Terence B.
Murphy William J.
Rassel Robert M.
Baisa Joselito
Canale Anthony
International Business Machines - Corporation
Mai Anh T
Roberts Mlotkowski Safran & Cole P.C.
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