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. 10, 2023
Filed:
May. 31, 2022
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Xiaoyong Liu, San Jose, CA (US);
Zhanjie Li, Pleasanton, CA (US);
Quang Le, San Jose, CA (US);
Brian R. York, San Jose, CA (US);
Cherngye Hwang, San Jose, CA (US);
Kuok San Ho, Emerald Hills, CA (US);
Hisashi Takano, San Jose, CA (US);
Assignee:
Western Digital Technologies, Inc., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/11 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3909 (2013.01); G11B 5/11 (2013.01); G11B 5/3912 (2013.01); G11B 5/3932 (2013.01); G11B 5/3967 (2013.01); G11B 2005/3996 (2013.01);
Abstract
The present disclosure generally relates to a bismuth antimony (BiSb) based STO (spin torque oscillator) sensor. The STO sensor comprises a SOT device and a magnetic tunnel junction (MTJ) structure. By utilizing a BiSb layer within the SOT device, a larger spin Hall angle (SHA) can be achieved, thereby improving the efficiency and reliability of the STO sensor.