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. 21, 2021
Filed:
Feb. 18, 2020
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Yuankai Zheng, Fremont, CA (US);
Christian Kaiser, San Jose, CA (US);
Zhitao Diao, Fremont, CA (US);
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G01R 33/09 (2006.01); G01R 33/00 (2006.01);
U.S. Cl.
CPC ...
G01R 33/098 (2013.01); G01R 33/0023 (2013.01); G01R 33/0082 (2013.01); G11B 5/3909 (2013.01); G11B 5/3912 (2013.01);
Abstract
The present disclosure generally relates to a tunnel magnetoresistive (TMR) device. The TMR device includes a high radiation reflective layer between the bottom shield of the TMR device and the magnetic seed layer. The high radiation reflective layer helps to maintain the TMR device temperature during transportation between processing chambers. Additionally, the high radiation reflective layer decreases the resistance area (RA) of the TMR device while also increasing the magnetoresistance (MR) of the TMR device.