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:
Feb. 26, 2013
Filed:
Jun. 20, 2011
Cheol Hwi Ryu, Ichon, KR;
Hyung Soon Park, Ichon, KR;
Jong Han Shin, Ichon, KR;
Jum Yong Park, Ichon, KR;
Sung Jun Kim, Ichon, KR;
Cheol Hwi Ryu, Ichon, KR;
Hyung Soon Park, Ichon, KR;
Jong Han Shin, Ichon, KR;
Jum Yong Park, Ichon, KR;
Sung Jun Kim, Ichon, KR;
SK hynix Inc., , KR;
Abstract
A phase-change random access memory device includes a semiconductor substrate, a bottom electrode structure formed on the semiconductor substrate, a cylindrical bottom electrode contact that includes a conductive material layer, which is in contact with the bottom electrode, and a cylindrical phase-change material layer that is in contact with the bottom electrode contact. Therefore, the contact area between the bottom electrode contact and the phase-change material layer can be minimized.