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:
Oct. 08, 2019
Filed:
Apr. 27, 2018
Shine Bright Technology Limited, Wan Chai, HK;
Minyi Chen, Wan Chai, CN;
SHINE BRIGHT TECHNOLOGY LIMITED, Wan Chai, HK;
Abstract
Provided are an erasing method, erasing apparatus for memory cells and a storage medium to perform erase loops with a more appropriate erasing voltages. The method includes performing erase loops on a target erasing block by sequentially using first erasing voltages Vn; and when a predetermined condition is reached, proceeding to perform erase loops on the target erasing block by sequentially using second erasing voltages Um until the target erasing block is successfully erased. Vn=V1+(n−1)×d1, where n denotes erase loop counts of the first erasing voltages, n is an integer greater than or equal to 1, and V1 and d1 are positive numbers. Um=Vn+(m−1)×d2, where m denotes erase loop counts of the second erasing voltages, m is an integer greater than or equal to 2, and d2 is a positive number not equal to d1.