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:
Jun. 08, 2010
Filed:
May. 07, 2007
Wei-su Chen, Hsinchu, TW;
Wei-Su Chen, Hsinchu, TW;
Promos Technologies Inc., Hsinchu, TW;
Abstract
A phase change memory device is provided. The phase change memory device includes a substrate with a first electrode layer formed thereon. A first phase change memory structure is on the first electrode layer and electrically connected to the first electrode layer. A second phase change memory structure is on the first phase change memory structure and electrically connected to the first phase change memory structure, wherein the first or second phase change memory structure includes a cup-shaped heating electrode. A first insulating layer covers a portion of the cup-shaped heating electrode along a first direction. A first electrode structure covers a portion of the first insulating layer and the cup-shaped heating electrode along a second direction. The first electrode structure includes a pair of phase change material sidewalls on a pair of sidewalls of the first electrode structure and covering a portion of the cup-shaped heating electrode.