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:
Oct. 29, 2019
Filed:
Mar. 03, 2015
Applicant:
Toshiba Memory Corporation, Minato-ku, Tokyo, JP;
Inventors:
Shuichi Tsubata, Seoul, KR;
Masatoshi Yoshikawa, Seoul, KR;
Satoshi Seto, Seoul, KR;
Kazuhiro Tomioka, Seoul, KR;
Assignee:
TOSHIBA MEMORY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 43/12 (2006.01); H01L 43/02 (2006.01); H01L 27/22 (2006.01);
U.S. Cl.
CPC ...
H01L 43/12 (2013.01); H01L 27/222 (2013.01); H01L 43/02 (2013.01);
Abstract
According to one embodiment, a method of manufacturing a magnetic memory device, includes forming a stack film including a magnetic layer on an underlying area, forming a hard mask on the stack film, forming a stack structure by etching the stack film using the hard mask as a mask, forming a first protective insulating film on a side surface of the stack structure, and performing an oxidation treatment.