Appeal No. 2003-0672 Page 5
Application No. 09/151,886
suggested by the applied prior art. In fact, the advantages of utilizing a thermally
conductive, electrically-nonconductive ceramic aluminum oxide material having a
thickness of less than about 100 mils (2.5 mm) which extends generally coterminously
with or within the margins of the second heat transfer surface of the source in a thermal
dissipator are not appreciated by the prior art applied by the examiner.
Kesel teaches a generally planar thermal dissipation member formed of a
thermally conductive, electrically-conductive material (i.e., the metal sheet 1) having a
thickness of less than about 100 mils (2.5 mm). Kesel further teaches (column 4, lines
19-27) that:
The size of the dissipator is not critical except that it be sufficiently large
so as to provide adequate dissipation. Sizes depend upon the shape and size of
the component as well as the dissipator. Typically, the size will cover an area of
from 0.5 sq. inch to about 6 square inches. When in the preferred rectangular
shape, the dissipators will vary in size from about 0.5 by 1 inch to 1.5 by 4
inches. Of course the greater the area of thermal dissipator, the greater the
ability of the dissipator to eliminate unwanted heat.
Kesel does not teach or suggest using a generally planar thermal dissipation member
formed of a thermally conductive, electrically-nonconductive ceramic aluminum oxide
material having a thickness of less than about 100 mils (2.5 mm) which extends
generally coterminously with or within the margins of the second heat transfer surface
of the source.
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