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. 08, 1993
Filed:
Apr. 24, 1991
Applicant:
Inventors:
Asao Nakano, Kamakura, JP;
Kiyoshi Ogata, Yokohama, JP;
Makiko Kohno, Kawasaki, JP;
Yasunori Narizuka, Hiratsuka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338308 ; 338225 ; 338223 ; 20419221 ;
Abstract
In an electronic circuit device, a thin film resistor is formed on a substrate and includes first regions including one kind of atom such as Cr and exhibiting an electric conductivity and a second region including a compound such as SiO.sub.2 composed of two kinds of atoms and exhibiting an insulating property. In the thin film resistor, the first regions are scattered in the second region and have an average particle size of 2 nm to 20 nm.