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. 13, 2024
Filed:
Apr. 29, 2022
Sandisk Technologies Llc, Addison, TX (US);
Xiaojia Jia, San Jose, CA (US);
Jiacen Guo, Cupertino, CA (US);
SANDISK TECHNOLOGIES LLC, Addison, TX (US);
Abstract
A method for performing an erase operation of a partially programmed memory block of a non-volatile memory structure. The method comprises: (1) applying an erase voltage bias level to a channel region of the memory block, (2) applying a word line voltage level to all programmed word line(s) of the memory block, (3) applying a 'float' condition to all unprogrammed word line(s) of the memory block, and (4) applying an erase verify operation to all word line(s) of the memory block, wherein the “float” condition comprises omitting application of the word line voltage to the unprogrammed word line(s).