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:
Jun. 30, 2015
Filed:
Jun. 17, 2013
Western Digital (Fremont), Llc, Fremont, CA (US);
Cheng-Han Yang, Mountain View, CA (US);
Christian Kaiser, San Jose, CA (US);
Yuankai Zheng, Fremont, CA (US);
Qunwen Leng, Palo Alto, CA (US);
Chih-Ching Hu, Pleasanton, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method and system provide a magnetic transducer including a first shield, a read sensor, and a second shield. The read sensor is between the first shield and the second shield. The read sensor has a free layer including a plurality of ferromagnetic layers interleaved with and sandwiching at least one additional layer. Each of the ferromagnetic layers includes at least one of Fe, Co and B and has a first corrosion resistance. The additional layer(s) have a second corrosion resistance greater than the first corrosion resistance.