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. 20, 1990
Filed:
Aug. 24, 1989
Applicant:
Inventors:
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
365106 ; 365107 ; 365117 ; 365175 ; 365182 ; 357-4 ; 357-6 ; 357-8 ; 357 51 ;
Abstract
A three-dimensional memory element comprises a multilayer tunnel switch portion formed by alternately stacking conductive films and insulating films, both the ends of the switch portion consisting of insulating films, a write electrode formed on the insulating film as one end of the multilayer tunnel switch portion, a read electrode formed on the insulating film as the other end of the multilayer tunnel switch portion, and charge accumulating capacitors respectively connected to the conductive films of the multilayer tunnel switch portion.