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:
Apr. 16, 2024
Filed:
Sep. 08, 2021
Kioxia Corporation, Tokyo, JP;
Hiroshi Takehira, Yokkaichi Mie, JP;
Katsuyoshi Komatsu, Yokkaichi Mie, JP;
Tadaomi Daibou, Yokkaichi Mie, JP;
Hiroki Kawai, Inazawa Aichi, JP;
Yuichi Ito, Yokkaichi Mie, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A switching device according to an embodiment includes a switching layer disposed between a first electrode and a second electrode. The switching layer contains a material containing a first cation element Z, Te, and N. This material contains at least 5 atomic % or more of each of Z, Te, and N, and when an atomic ratio of Te is X, an atomic ratio of N is Y, an atomic ratio of Z is W, a ratio of ZTeto ZN on a straight line connecting a compound of the first cation element Z with tellurium and nitride of the first cation element Z in a ternary phase diagram of Z, Te, and N is A, and a change in an N content from the ZTe—ZN line is B, the material has a composition satisfying X=1.2 (1−A) (0.5+B), Y=A (0.5+B), and W=1−X−Y, where −0.06≤B≤0.06 is satisfied when ⅓>A and ¾<A, and −0.06≤B and Y≤0.45 are satisfied when ⅓≤A≤¾.