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:
Sep. 29, 1992
Filed:
Mar. 06, 1992
Applicant:
Inventor:
Tsuyoshi Aso, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 51 ; 357 49 ; 357 50 ; 357 55 ;
Abstract
A dielectric isolation substrate includes island-like regions made of a single crystal of semiconductor material and a supporting layer for supporting the island-like regions. The support layer is formed by first and second electrodes made of a conductive material and a dielectric film interposed therebetween to constitute a capacitor structure. The first electrode layer has a plurality of island-like regions on a principal surface side thereof remote from the dielectric film. The first electrode layer may be formed as one region for forming one capacitor or isolated two or more regions for forming two or more capacitors.