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.:

US 7599222 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 06, 2009

Filed:

Sep. 14, 2006
Applicants:

Chi-weon Yoon, Seoul, KR;

Heung-soo Lim, Yongin-si, KR;

Inventors:

Chi-Weon Yoon, Seoul, KR;

Heung-Soo Lim, Yongin-si, KR;

Assignee:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;

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

Disclosed is a semiconductor memory device which is operable a pipelined-buffer programming and includes a cell array including a plurality of memory cells, a write driver circuit divided into a plurality of write units, each write unit programming memory cells with a first data, a sense amplifier circuit divided into plurality of read units of the same number as the plurality of write units, each read unit sensing bit lines of the cell array during a program verify operation, a selection circuit for selecting one of the write units and one of the read units in response to a column address and a data input circuit for providing the first data to the selected write unit during a program operation and for receiving verifying data from the selected read unit during the program verify operation.


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