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:
Dec. 11, 2012
Filed:
Sep. 30, 2009
Applicants:
Masaomi Kamakura, Tokyo, JP;
Toshio Kumamoto, Tokyo, JP;
Takashi Okuda, Tokyo, JP;
Inventors:
Assignee:
Renesas Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 3/04 (2006.01); H01C 1/012 (2006.01);
U.S. Cl.
CPC ...
Abstract
To eliminate the substrate voltage dependences of the respective resistance values of resistor elements, in the resistor elements coupled in series to each other over respective substrate regions, the ends of the resistor elements are coupled to the corresponding substrate regions by respective bias wires such that respective average potentials between the substrate regions of the resistor elements and the corresponding resistor elements have opposite polarities, and equal magnitudes.