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. 12, 2024
Filed:
Jan. 26, 2021
Changxin Memory Technologies, Inc., Anhui, CN;
Peng Wang, Anhui, CN;
CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei, CN;
Abstract
The present disclosure relates to the field of integrated circuit technologies, and provides a method and device for testing an SR cycle as well as a method and device for testing an AR number. The method for testing an SR cycle includes: executing a preset number of data-retention-capacity acquisition steps, the data-retention-capacity acquisition step including determining a preset refresh time; sending an SR entry command to control a memory to enter an SR operation; sending an SR exit command to control the memory to exit the SR operation after the memory executes the SR for the preset refresh time; detecting a current data retention capacity of the memory; obtaining a cycle of a function of the data retention capacity with respect to the corresponding preset refresh time; and determining the SR cycle of the memory with the cycle of the function.