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:
Sep. 09, 2025
Filed:
Sep. 13, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Tokyo Institute of Technology, Tokyo, JP;
Quang Le, San Jose, CA (US);
Xiaoyong Liu, San Jose, CA (US);
Brian R. York, San Jose, CA (US);
Cherngye Hwang, San Jose, CA (US);
Son T. Le, San Jose, CA (US);
Hisashi Takano, Fujisawa, JP;
Fan Tuo, Fujisawa, JP;
Hassan Osman, San Jose, CA (US);
Nam Hai Pham, Tokyo, JP;
Western Digital Technologies, Inc., San Jose, CA (US);
Tokyo Institute of Technology, Tokyo, JP;
Abstract
The present disclosure generally relates to a magnetic recording head comprising a read head. The read head comprises a first sensor disposed at a media facing surface (MFS) comprising at least one free layer, a second sensor disposed at the MFS comprising at least one free layer, a first spin generator spaced from the first sensor and recessed from the MFS, and a second spin generator spaced from the second sensor and recessed from the MFS. The first and second spin generators each individually comprises at least one spin orbit torque (SOT) layer. The SOT layer may comprise BiSb. The first and second sensors are configured to detect a read signal using a first voltage lead and a second voltage lead. The first and second spin generators are configured to inject spin current through non-magnetic layers to the first and second sensors using a plurality of current leads.