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:
Jun. 21, 2005
Filed:
Nov. 21, 2002
Applicant:
Nobusuke Yamamoto, Tokyo, JP;
Inventor:
Nobusuke Yamamoto, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R027/00 ; H01L021/66 ;
U.S. Cl.
CPC ...
Abstract
A method of controlling characteristics of a compound semiconductor device, whereby the compound semiconductor device is formed so as to include a plurality of resistors having the same ratio of a difference between a surface area of a corresponding resistivity region and the combined overlapping surface area of a corresponding pair of electrodes to the combined overlapping surface area of the corresponding pair of electrodes. In this manner, a resistivity of a resistor is precisely controlled.