Appeal No. 2003-1021
Application 09/507,507
Claim 1 is representative of the subject matter on
appeal and is reproduced below:
1. A heat sink for a heat generating device, the
device having a first coefficient of thermal expansion and a
first thermal conductivity, the heat sink comprising:
a body for removing heat from the heat generating
device, the body having a second coefficient of thermal expansion
greater than the first coefficient of thermal expansion and a
second thermal conductivity greater than the first thermal
conductivity; and
an intermediate region between the heat generating
device and the body, the intermediate region comprising a
material having a coefficient of thermal expansion substantially
matching the first coefficient of thermal expansion and the
intermediate region having a thermal conductivity greater than
the first thermal conductivity and less than or equal to the
second thermal conductivity;
wherein said intermediate region is discrete from the
body; and
wherein said heat sink further comprises one or more
discrete layers between the top of said intermediate region and
the bottom of the body.
The references relied upon by the examiner are:
Gondusky et al. (Gondusky) 5,050,040 Sept. 17, 1991
Toy et al. (Toy) 5,931,222 Aug. 3, 1999
GROUNDS OF REJECTION
1. Claim 24 stands rejected under 35 U.S.C. § 112,
first paragraph.
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 Next
Last modified: November 3, 2007