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:
Apr. 11, 2023
Filed:
Aug. 16, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A memory device includes a cell area including memory blocks, and a peripheral circuit area including peripheral circuits that execute an erase operation for each of the memory blocks. Each memory block includes word lines that are stacked on a substrate, channel structures penetrate through the word lines, and a source region that is disposed on the substrate and connected to the channel structures. During the erase operation in which an erase voltage is provided to the source region of a target memory block among the memory blocks, the peripheral circuits reduce a voltage of a first word line from a first bias voltage to a second bias voltage at a first time, and to reduce a voltage of a second word line, different from the first word line, from a third bias voltage to a fourth bias voltage at a second time different from the first time.