Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – With window means
Reexamination Certificate
2006-12-13
2009-06-23
Cao, Phat X (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
With window means
C257S704000, C257S433000, C257S434000, C257SE21001
Reexamination Certificate
active
07550831
ABSTRACT:
An electronic device has a substrate, a conductive layer and a substrate mounted portion. The substrate has a circuit portion used from 60 GHz to 80 GHz. The conductive layer is provided directly on a face of the substrate that is opposite side of the circuit portion. The face having the circuit portion of the substrate is mounted face down on the substrate mounted portion. A thickness of the conductive layer is a thickness where a sheet resistance of the conductive layer is ¼ to 4 times of a resistance component of an impedance of the substrate.
REFERENCES:
patent: 5991989 (1999-11-01), Onishi et al.
patent: 7368816 (2008-05-01), Lim et al.
patent: 2006/0113660 (2006-06-01), Liao et al.
patent: 9-102705 (1997-04-01), None
patent: 2005-217222 (2005-08-01), None
Cao Phat X
Eudyna Devices Inc.
Westerman, Hattori, Daniels & Adrian , LLP.
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