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. 21, 1994
Filed:
Mar. 09, 1992
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369126 ; 365151 ;
Abstract
An information storage apparatus in which one unit (or one bit) of information is stored by bringing a fine tip electrode with a tip portion of a dimension on the order of an inter-atomic distance (or several angstroms) in proximity to an atom on a flat surface of a material (for example, a semiconductor) with a gap on the order of an inter-atomic distance being provided between the tip electrode and the atom, and applying a voltage to the tip electrode so that the alignment of a dimer (or a pair of atoms) on the material surface in the vicinity of the tip electrode is changed by virtue of a tunnelling effect which is a quantum mechanical effect.