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. 01, 2016
Filed:
Jan. 21, 2015
SK Hynix Inc., Icheon-si Gyeonggi-do, KR;
Hee Youl Lee, Icheon-si, KR;
Kyung Sik Mun, Icheon-si, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
An operating method of a semiconductor device is provided. The operating method of the semiconductor memory device includes programming a second source select transistor electrically coupled to a common source line through a first source select transistor; reprogramming the second source select transistor when a threshold voltage of the second source select transistor is less than a target voltage, and ending a program for the second source select transistor when the threshold voltage of the second source select transistor is greater than or equal to the target voltage. The programming includes electrically decoupling the second source select transistor from the common source line by turning off the first source select transistor.