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.

Date of Patent:
Jan. 24, 2017

Filed:

Jan. 07, 2016
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventor:

Sung Wook Jung, Gyeonggi-do, KR;

Assignee:

SK Hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/12 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/12 (2013.01); G11C 16/3459 (2013.01);
Abstract

A semiconductor memory device includes a plurality of memory cells connected to a plurality of word lines; a peripheral circuit suitable for applying a program pulse to at least one of the word lines, performing a program verification operation to the plurality of memory cells by using a first program verification voltage; and a control logic suitable for controlling the peripheral circuit to repeat the applying of the program pulse and the performing the program verification operation until program verification passes by increasing a level of the program pulse by an amount of a step voltage at each repetition, wherein a size of the step voltage decreases at each repetition.


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