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:
Jun. 11, 2019
Filed:
Apr. 21, 2017
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-Do, KR;
Young-Seop Shim, Seoul, KR;
Jaehong Kim, Seoul, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-Do, KR;
Abstract
A storage device includes a nonvolatile memory device and a controller. A nonvolatile memory device includes a plurality of memory blocks. Each of the plurality of memory blocks is divided into a plurality of zones and is formed on a substrate. Each of the plurality of zones comprises one or more word lines. A controller performs a reliability verification read operation on a first zone of the plurality of zones of a memory block selected from the plurality of memory blocks if a number of read operations performed on the first zone reaches a first threshold value and performs the reliability verification read operation on a second zone of the plurality of zones of the selected memory block if a number of read operations performed on the second zone reaches a second threshold value.