Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Reexamination Certificate
2004-12-16
2009-11-03
Leo, Leonard R (Department: 3744)
Metal working
Method of mechanical manufacture
Heat exchanger or boiler making
C165S146000, C165S185000, C165S905000, C361S704000
Reexamination Certificate
active
07610678
ABSTRACT:
A pattern is formed with an insulative resin on a bonding face of a silicon chip, which is a heat generating element, and a pattern is formed with the insulative resin on a bonding face of a heat sink, which is a heat dissipating element, in alignment with the insulative resin parts formed on the silicon chip. The silicon chip and the heat sink are bonded to each other via a heat transfer sheet. The silicon chip and the heat sink are bonded to each other by a metal to form metal connection portions in a region where no insulative resin parts are formed, while the silicon ship and the heat sink are bonded to each other by a resin to form resin connection portions in a region where the insulative resin parts are formed.
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Office Action from Japan Patent Office regarding Application No. 2004-239960 dated Aug. 7, 2007, with English Translation and Certification and Prior Art Information List.
Office Action from Japan Patent Office regarding Application No. 2004-239960 dated Aug. 7, 2007 with English Translation.
Date Hiroaki
Ishinabe Minoru
Tokuhira Hideshi
Uchida Hiroki
Arent & Fox LLP
Fujitsu Limited
Leo Leonard R
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