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. 24, 2012
Filed:
Mar. 25, 2011
Applicant:
Semyon D. Savransky, Newark, CA (US);
Inventor:
Semyon D. Savransky, Newark, CA (US);
Assignee:
Ovonyx, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); H01L 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Chalcogenide materials conventionally used in chalcogenide memory devices and ovonic threshold switches may exhibit a tendency called drift, wherein threshold voltage or resistance changes with time. By providing a compensating material which exhibits an opposing tendency, the drift may be compensated. The compensating material may be mixed into a chalcogenide, may be layered with chalcogenide, may be provided with a heater, or may be provided as part of an electrode in some embodiments. Both chalcogenide and non-chalcogenide compensating materials may be used.