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:
Mar. 03, 2015
Filed:
Aug. 31, 2012
Yoo Hyun Noh, Seoul, KR;
Yoo Hyun Noh, Seoul, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
A semiconductor memory device and a method of operating the same are provided. The method includes performing an overall erase operation such that each threshold voltage of all memory cells connected to even word lines and odd word lines in a selected memory cell block are lower than a first target level, performing an erase operation such that each threshold voltage of the memory cells connected to the even word lines are lower than a second target level which is lower than the first target level, and performing an erase operation such that each threshold voltage of the memory cells connected to the odd word lines are lower than the second target level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile