公开(公告)号：US10777222B1

公开(公告)日：2020-09-15

申请号：US16792010

申请日：2020-02-14

Applicant: Western Digital Technologies, Inc.

Inventor： Xiaoyong Liu ,  Chih-Ching Hu ,  Daniele Mauri ,  Ming Mao ,  Guanxiong Li ,  Yukimasa Okada ,  Ying Hong

IPC: G11B5/39 ,  G11B5/48 ,  G01R33/09

Abstract: A hybrid read head structure for two-dimensional magnetic recording (TDMR) in a disk drive has two stacked current-perpendicular-to-the plane magnetoresistive (CPP-MR) read heads or sensors substantially aligned with one another in the along-the track direction to enable both sensors to read data from the same data track. The structure is a hybrid structure formed on the disk drive slider with the lower sensor being a dual free layer (DFL) or scissoring type of CPP-MR sensor and the upper sensor being a single free layer (SFL) type of CPP-MR sensor.

公开(公告)号：US20180358543A1

公开(公告)日：2018-12-13

申请号：US15826578

申请日：2017-11-29

Applicant: Western Digital Technologies, Inc.

Inventor： Quang Le ,  David John Seagle ,  Xiaoyong Liu ,  Daniele Mauri ,  Yongchul Ahn ,  Hongquan Jiang ,  Guangli Liu ,  David Patrick Druist ,  Jui-Lung Li

IPC: H01L43/06 ,  H01L43/04 ,  H01L43/08 ,  H01L43/10 ,  H01L43/14 ,  H01L27/22 ,  G11C11/16 ,  G11C11/18 ,  H01F10/32 ,  G11B5/012

Abstract: Magnetic sensors using spin Hall effect and methods for fabricating same are provided. One such magnetic sensor includes a spin Hall layer including an electrically conductive, non-magnetic material, a magnetic free layer adjacent to the spin Hall layer, a pair of push terminals configured to enable an electrical current to pass through the magnetic free layer and the spin Hall layer in a direction that is perpendicular to a plane of the free and spin Hall layers, and a pair of sensing terminals configured to sense a voltage when the electrical current passes through the magnetic free layer and the spin Hall layer, where each of the push and sensing terminals is electrically isolated from the other terminals.