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:
May. 29, 2012
Filed:
Dec. 15, 2006
Phase change random access memory device with transistor, and method for fabricating a memory device
Applicant:
Harald Seidl, Pöring, DE;
Inventor:
Harald Seidl, Pöring, DE;
Assignee:
Qimonda AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/52 (2006.01); H01L 29/00 (2006.01); G11C 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a memory device, in particular to a resistively switching memory device such as a Phase Change Random Access Memory ('PCRAM'). In one disclosed method, a nanowire of non-conducting material is formed serving as a mould for producing a nanotube of conducting material. A volume of switching active material is deposited on top of the nanotube, so that the ring-shaped front face of the nanotube couples to the switching active material and thus forms a bottom electrode contact.