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:
Nov. 18, 2014
Filed:
Nov. 29, 2011
Applicant:
Seok Jin Joo, Seoul, KR;
Inventor:
Seok Jin Joo, Seoul, KR;
Assignee:
Hynix Semiconductor Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/04 (2006.01); G11C 11/56 (2006.01);
U.S. Cl.
CPC ...
G11C 11/5628 (2013.01); G11C 16/0483 (2013.01);
Abstract
A program method of a semiconductor memory device includes performing a least significant bit (LSB) program operation for target LSB program cells of a selected page, increasing the threshold voltages of target most significant bit (MSB) program cells of the selected page before performing an MSB operation for the target MSB program cells, and performing the MSB program operation for the target MSB program cells after the increasing of the threshold voltages of the target MSB program cells.