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. 02, 2021
Filed:
Nov. 17, 2019
Winbond Electronics Corp., Taichung, TW;
Koying Huang, San Jose, CA (US);
Winbond Electronics Corp., Taichung, TW;
Abstract
The disclosure is directed to a method and an apparatus for verifying an operation performed by a cell of a RRAM. In an aspect of the disclosure, the method of verifying an operation performed by a cell of a RRAM would include not limited to performing a first write operation by applying a first write voltage on a cell of the RRAM; measuring a first resistance and a first rate of change of the resistance of the cell; detecting whether the first rate of change of the resistance is below a negative change of resistance threshold; detecting whether the first resistance is below a target resistance value in response to having detected that the first rate of change of the resistance is below the negative change of resistance threshold; and having determined the cell is valid in response to having detected the first resistance dropping below the target resistance value.