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. 11, 2020
Filed:
Sep. 18, 2017
Toshiba Memory Corporation, Minato-ku, JP;
Kenji Nakamura, Kawasaki, JP;
Hideyuki Nishizawa, Toshima, JP;
Toshiba Memory Corporation, Minato-ku, JP;
Abstract
A memory device according to an embodiment includes a first conductive layer, a second conductive layer, a variable resistance layer disposed between the first conductive layer and the second conductive layer, and an organic molecular layer disposed between the variable resistance layer and the second conductive layer and containing organic molecules. Each of the organic molecules includes a first fused polycyclic unit having a first HOMO level, a second fused polycyclic unit having a second HOMO level higher in energy than the first HOMO level, and a third fused polycyclic unit disposed between the first fused polycyclic unit and the second fused polycyclic unit. The third fused polycyclic unit has a third HOMO level higher in energy than the first HOMO level and the second HOMO level.