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:
Nov. 27, 2001
Filed:
Mar. 07, 2000
Applicant:
Inventors:
Assignee:
Tae-Won Noh, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/976 ;
U.S. Cl.
CPC ...
H01L 2/976 ;
Abstract
A nonvolatile ferroelectric capacitor comprising Bi,A,Ti,O,thin film which is obtained by substituting at least some atoms of nonvolatile element A such as La for volatile Bi atoms in Bi,Ti,O,. Nonvolatile element A in perovskite layer of B,A,Ti,O,suppress the generation of oxygen vacancies in the perovskite layer, thereby improving fatigue behavior.