The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 1990
Filed:
Jun. 20, 1988
Setsuo Kodato, Atsugi, JP;
Masao Nakamura, Hatano, JP;
Anritsu Corporation, Tokyo, JP;
Abstract
The electric resistor of this invention is comprised of a Si-Ge alloy thin film containing amorphous and microcrystal phases which serve as an electric resistance, thereby keeping the resistance value ratio substantially constant and uninfluenced by frequency changes which range from d.c. to 32 GHz. In addition, the power detector of this invention uses a thermocouple which is made by connecting the conductor film with the above-mentioned alloy thin film having great thermoelectric power. The thermocouple is provided with beam lead electrodes at cold junction areas to thereby produce large temperature differences between the hot and cold junctions, so that the thermocouple is provided with a sufficient thermal gradient to detect very low power with high accuracy.