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. 23, 2021
Filed:
Dec. 13, 2016
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Bum Ki Min, Daejeon, KR;
Woo Young Kim, Daejeon, KR;
Hyeon Don Kim, Daejeon, KR;
Teun Teun Kim, Daejeon, KR;
Seung Hoon Lee, Daejeon, KR;
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon, KR;
Abstract
A memory device may be provided that includes: a substrate; a coupling layer which is located on the substrate and has electrical conductivity; a meta-atomic layer which is located on or under the coupling layer; a memory layer which is located on the meta-atomic layer; and an electrode layer which is located on the memory layer and has electrical conductivity. The memory layer is composed of a material which produces spontaneous polarization at a voltage equal to or higher than a predetermined voltage. Through this, the memory device can be electrically driven and can continuously maintain modulated optical characteristics. Also, the memory device according to the embodiment of the present invention can modulate optical characteristics by multiple electrical inputs.