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:
Nov. 02, 2021
Filed:
Feb. 21, 2020
International Business Machines Corporation, Armonk, NY (US);
Ning Li, White Plains, NY (US);
Wanki Kim, Chappaqua, NY (US);
Stephen W. Bedell, Wappingers Falls, NY (US);
Devendra K. Sadana, Pleasantville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus includes an analog phase change memory array, including an array of cells addressable and accessible through first lines and second lines. The apparatus includes device(s) coupled to one or more of the first lines. The device(s) is/are able to be coupled to or decoupled from the one or more first lines to compensate for phase change memory resistance drift in resistance of at least one of the cells in the one or more first lines. The apparatus may also include control circuitry configured to send, using the first lines and second lines, a same set pulse through the device(s) to multiple individual phase change memory resistors in the phase change memory array sequentially once every period.