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:
Dec. 24, 2019
Filed:
Aug. 22, 2017
Applicant:
Sandisk Technologies Llc, Plano, TX (US);
Inventors:
Kosaku Yamashita, Yokkaichi, JP;
Yoshihiro Sato, Yokkaichi, JP;
Assignee:
SANDISK TECHNOLOGIES LLC, Addison, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 45/00 (2006.01); H01L 27/24 (2006.01);
U.S. Cl.
CPC ...
H01L 45/1233 (2013.01); H01L 27/249 (2013.01); H01L 27/2463 (2013.01); H01L 27/2481 (2013.01); H01L 45/04 (2013.01); H01L 45/145 (2013.01); H01L 45/146 (2013.01); H01L 45/1608 (2013.01); H01L 45/1616 (2013.01); H01L 45/1633 (2013.01);
Abstract
A resistive memory device includes a first electrode, a second electrode spaced from the first electrode along a spacing direction, and a hafnium oxide resistive material portion of a resistive memory cell located between the first electrode and the second electrode and having a compositional modulation in oxygen concentration within directions that are perpendicular to the spacing direction.