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:
Apr. 26, 2011
Filed:
Sep. 05, 2008
Applicants:
Wei-su Chen, Hsinchu, TW;
Chih-wei Chen, Miaoli County, TW;
Frederick T Chen, Hsinchu, TW;
Inventors:
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phase change memory device is disclosed, including a substrate. The phase change memory also includes a bottom electrode. A conductive structure with a cavity is provided to electrically contact the bottom electrode, wherein the conductive structure includes sidewalls with different thicknesses. A phase change spacer is formed to cross the sidewalls with different thicknesses. A top electrode is electrically contacted to the phase change spacer.