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. 11, 2010
Filed:
Dec. 21, 2007
Applicants:
Ralf Symanczyk, München, DE;
Paul-henri Albarede, Mennecy, FR;
Christelle Albarede, Legal Representative, Mennecy, FR;
Inventors:
Ralf Symanczyk, München, DE;
Paul-Henri Albarede, Mennecy, FR;
Christelle Albarede, legal representative, Mennecy, FR;
Assignees:
Qimonda AG, Munich, DE;
Altis Semiconductor, Corbeil Essonnes Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retention test system and method for resistively switching memory devices is disclosed. One embodiment provides a plurality of memory cells configured to be changed over between a first state of high electrical resistance and a second state of low electrical resistance, wherein the system is configured to apply a bias voltage to at least one memory cell of the memory device to be tested.