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(12) United States Patent

Lee et al.

(io) Patent No.: (45) Date of Patent:

US 7,894,277 B2 Feb.22, 2011

(54) SEMICONDUCTOR DEVICE HAVING

RESISTANCE BASED MEMORY ARRAY,
METHOD OF READING AND WRITING, AND
SYSTEMS ASSOCIATED THEREWITH

(75) Inventors: Kwang Jin Lee, Hwaseong-si (KR); Du Eung Kim, Yongin-si (KR); Hye Jin Kim, Seoul (KR)

(73) Assignee: Samsung Electronics Co., Ltd.,

Gyeonggi-do (KR)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 197 days.

(21) Appl.No.: 12/292,890

(22) Filed: Nov. 28, 2008

(65) Prior Publication Data

US 2009/0141549 Al Jun. 4, 2009

(30) Foreign Application Priority Data

Dec. 3, 2007 (KR) 10-2007-0124512

(51) Int. CI.

G11C 7/00 (2006.01)

(52) U.S. CI 365/189.05; 365/148; 365/230.8;

365/233.1

(58) Field of Classification Search 365/148,

365/189.05, 230.08, 233.1 See application file for complete search history.

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