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. 21, 2014

Filed:

Apr. 28, 2011
Applicant:

Sung Jae Chung, Seoul, KR;

Inventor:

Sung Jae Chung, Seoul, KR;

Assignee:

Hynix Semiconductor Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A program method of a semiconductor memory device may include precharging first bit lines, coupled to first strings, to increase a potential level of the first strings to a first potential level; programming memory cells of a selected word line, wherein the memory cells are coupled to second bit lines; pre-discharging the first bit lines to decrease a potential level of the word lines to a second potential level, wherein the second potential level is lower than the first potential level; and discharging the first bit lines and the word lines to a ground voltage after the pre-discharging.


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