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:
Aug. 25, 2020
Filed:
Mar. 05, 2019
Applicant:
Sandisk Technologies Llc, Addison, TX (US);
Inventors:
Yuankai Zheng, Fremont, CA (US);
Christian Kaiser, San Jose, CA (US);
Zhitao Diao, Fremont, CA (US);
Assignee:
SANDISK TECHNOLOGIES LLC, Addison, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3909 (2013.01); G11B 5/3906 (2013.01); G11B 5/3929 (2013.01); G11B 5/3954 (2013.01); G11B 5/3967 (2013.01); G11B 2005/3996 (2013.01);
Abstract
A read head includes a first ferromagnetic layer, a second ferromagnetic layer, a first diffusion-assist nonmagnetic metallic layer located between the first ferromagnetic layer and the second ferromagnetic layer, a second diffusion-assist nonmagnetic metallic layer located between the first ferromagnetic layer and the second ferromagnetic layer, and a semiconductor spacer layer located between the first diffusion-assist nonmagnetic metallic layer and the second diffusion-assist nonmagnetic metallic layer.