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:
Mar. 08, 2022
Filed:
Mar. 10, 2020
International Business Machines Corporation, Armonk, NY (US);
Macronix International Co., Ltd., Hsin-chu, TW;
Cheng-Wei Cheng, White Plains, NY (US);
Huai-Yu Cheng, White Plains, NY (US);
I-Ting Kuo, Yorktown Heights, NY (US);
Hsiang-Lan Lung, Dobbs Ferry, NY (US);
International Business Machines Corporation, Armonk, NY (US);
MACRONIX INTERNATIONAL CO., LTD., Hsin-Chu, TW;
Abstract
An ovonic threshold switch comprises a thin film composed essentially of Si, Ge, Se, As, and an amount of a chalcogen that is effective to passivate oxidation of the composition in the presence of water vapor, wherein the chalcogen is selected from the list consisting of: Te and S. In one or more embodiments, the chalcogen is S. In one or more embodiments, the chalcogen is Te. In one or more embodiments, the effective amount of the chalcogen is greater than 1% by atomic percent. In one or more embodiments, the effective amount of the chalcogen is less than 10% by atomic percent. In one or more embodiments, the composition of matter comprises 10% Si, 15% Ge, 40% Se, 30% As, and 5% chalcogen by atomic percent.