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:
Feb. 09, 1999
Filed:
Jun. 26, 1997
Michitaka Kubota, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A lower electrode of a capacitor is formed by a cylindrical conductive film and a pillar shaped conductive film disposed coaxially within the cylindrical conductive film. Consequently, in this capacitor, even if a plane area of the lower electrode is so small that double cylinder type cannot be realized, opposing area of the lower electrode and upper electrode is larger as compared to a structure in which the lower electrode is of single cylinder type. This invention proposes such a capacitor and a method of manufacturing thereof. As a result, it is possible to increase electric storage capacity if the plane area of the capacitor is the same and further miniaturize the capacitor if the electric storage capacity is the same.