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:
Dec. 15, 2009
Filed:
Dec. 27, 2005
Woo-yeong Cho, Suwon-si, KR;
Jong-soo Seo, Hwaseong-si, KR;
Ik-chul Kim, Suwon-si, KR;
Young-kug Moon, Suwon-si, KR;
Woo-yeong Cho, Suwon-si, KR;
Jong-soo Seo, Hwaseong-si, KR;
Ik-chul Kim, Suwon-si, KR;
Young-kug Moon, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A phase-change random access memory device includes a global bit line connected to a write circuit and a read circuit; a plurality of local bit lines, each of which being connected to a plurality of phase-change memory cells; and a plurality of column select transistors selectively connecting the global bit line with each of the plurality of local bit lines. Each column select transistor has a resistance that depends on distance from the write circuit and the read circuit.