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:
Jul. 17, 2018
Filed:
Feb. 08, 2017
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Yoshiki Kamata, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
According to one embodiment, a memory device includes a superlattice structure portion containing first chalcogen-compound layers and second chalcogen-compound layers differing in composition from the first chalcogen-compound layers are alternately deposited, a first layer provided on one of main surfaces of the superlattice structure portion in a deposition direction thereof, which has a larger energy gap than that of the superlattice structure portion, and a second layer provided on the other main surface of the superlattice structure portion in the deposition direction, which has a larger energy gap than that of the superlattice structure portion.