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. 26, 2009
Filed:
Mar. 30, 2007
Ulrike Gruening-von Schwerin, Munich, DE;
Till Schloesser, Dresden, DE;
Ulrike Gruening-von Schwerin, Munich, DE;
Till Schloesser, Dresden, DE;
Qimonda AG, Munich, DE;
Abstract
An integrated circuit, a memory cell, memory device and method of operating the memory device is disclosed. In one embodiment, an integrated circuit having a resistively switching memory cell includes a bitline electrode and a second electrode having a lower voltage potential than the bitline electrode; a switching active volume and a selection transistor connected in series between the bitline electrode and the second electrode. The second electrode is connected, via a connection transistor, to a third electrode having the same or a lower voltage potential than the second electrode; wherein the second electrode includes a buried electrode at least partially positioned below the bitline electrode and the third electrode.