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:
Apr. 10, 2018
Filed:
Jun. 30, 2016
Applicant:
Western Digital (Fremont), Llc, Fremont, CA (US);
Inventors:
Rong R. Cao, Pleasanton, CA (US);
Yung-Hung Wang, San Jose, CA (US);
Lifan Chen, Fremont, CA (US);
Haifeng Wang, Morgan Hill, CA (US);
Chih-Ching Hu, Pleasanton, CA (US);
Assignee:
Western Digital (Fremont), LLC, Fremont, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/40 (2006.01);
U.S. Cl.
CPC ...
G11B 5/40 (2013.01);
Abstract
Aspects of the present disclosure provide a magnetic reader and methods for fabricating the same. The magnetic reader has a capping layer structure that can reduce or impede the corrosion and/or recession of a shield layer of the magnetic reader. In a particular embodiment, the capping layer structure includes a ruthenium (Ru) layer that is configured to impede oxygen interdiffusion between an IrMn antiferromagnetic layer and a Ta cap layer.