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:
Sep. 17, 2024
Filed:
Mar. 29, 2021
Yangtze Memory Technologies Co., Ltd., Hubei, CN;
Kaijin Huang, Wuhan, CN;
Yangtze Memory Technologies Co., Ltd., Wuhan, CN;
Abstract
In a method for erasing a memory device including memory cells, a first erase operation is performed on a selected memory cell of the memory cells based on a first erase voltage. A first verifying operation is performed on the selected memory cell based on a first erase verify voltage. A second verifying operation is subsequently performed on the selected memory cell based on a second verify voltage after the selected memory cell passes the first verifying operation. Further, a second erase operation is performed on the selected memory cell based on a second erase voltage after the selected memory cell fails the second verifying operation.