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 8243504 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 14, 2012

Filed:

Jun. 05, 2008
Applicants:

Hee Bok Kang, Chungcheongbuk-do, KR;

Suk Kyoung Hong, Gyeonggi-do, KR;

Inventors:

Hee Bok Kang, Chungcheongbuk-do, KR;

Suk Kyoung Hong, Gyeonggi-do, KR;

Assignee:

Hynix Semiconductor Inc., Kyoungki-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A phase change memory device includes a plurality of bit lines and a reference bit line intersecting a plurality of word lines. A cell array block has a phase change resistance cell arranged where a word line and a bit line intersect. A reference cell array block is configured to output a reference current and is formed where the word line and a reference bit line intersect. A column selecting unit is configured to select a corresponding bit line connected to the cell array block. A reference column selecting unit is connected to the reference cell array block and is configured to select the reference bit line. A sense amplifier is connected to the column selecting unit and the reference column selecting unit and is configured to receive the reference current and a cell data current of the bit line.


Find Patent Forward Citations

Kang, Hee. (2012). Phase change memory device with reference cell array (U.S. Patent No. 8243504). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8243504

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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