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:
Aug. 19, 2003
Filed:
Sep. 26, 2002
Applicant:
Inventor:
Shuji Ito, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/993 ;
U.S. Cl.
CPC ...
H01L 2/993 ;
Abstract
A variable-capacitance device includes first and second variable-capacitance elements which are connected in parallel to each other. Each of the first and variable-capacitance elements include gate, source and drain regions and operates in response to a control voltage applied to the gate region. The first and second variable-capacitance elements have different levels of threshold values.