公开(公告)号：US20220069202A1

公开(公告)日：2022-03-03

申请号：US17172190

申请日：2021-02-10

申请人： Western Digital Technologies, Inc.

发明人： Thao A. Nguyen ,  Michael Ho ,  Zhigang Bai ,  Xiaoyong Liu ,  Zhanjie Li ,  Yongchul Ahn ,  Hongquan Jiang ,  Quang Le

IPC分类号： H01L43/04 ,  H01L27/22 ,  H01L43/06 ,  G11C11/16 ,  G11C11/18

摘要： An apparatus is provided that includes a magnetic tunnel junction, a magnetic assist layer coupled to the magnetic tunnel junction, a non-magnetic layer disposed between the free layer and the magnetic assist layer, and a spin Hall effect layer coupled to the magnetic assist layer. The magnetic tunnel junction includes a free layer in a plane, the free layer including a switchable magnetization direction perpendicular to the plane. The magnetic assist layer includes a magnetization direction parallel to the plane and free to rotate about an axis perpendicular to the plane.

公开(公告)号：US11283008B1

公开(公告)日：2022-03-22

申请号：US17172190

申请日：2021-02-10

申请人： Western Digital Technologies, Inc.

发明人： Thao A. Nguyen ,  Michael Ho ,  Zhigang Bai ,  Xiaoyong Liu ,  Zhanjie Li ,  Yongchul Ahn ,  Hongquan Jiang ,  Quang Le

IPC分类号： G11C11/18 ,  H01L43/04 ,  H01L27/22 ,  G11C11/16 ,  H01L43/06

摘要： An apparatus is provided that includes a magnetic tunnel junction, a magnetic assist layer coupled to the magnetic tunnel junction, a non-magnetic layer disposed between the free layer and the magnetic assist layer, and a spin Hall effect layer coupled to the magnetic assist layer. The magnetic tunnel junction includes a free layer in a plane, the free layer including a switchable magnetization direction perpendicular to the plane. The magnetic assist layer includes a magnetization direction parallel to the plane and free to rotate about an axis perpendicular to the plane.

公开(公告)号：US20220122647A1

公开(公告)日：2022-04-21

申请号：US17172175

申请日：2021-02-10

申请人： Western Digital Technologies, Inc.

发明人： Thao A. Nguyen ,  Michael Ho ,  Xiaoyong Liu ,  Zhigang Bai ,  Zhanjie Li ,  Quang Le ,  Yongchul Ahn ,  Hongquan Jiang

IPC分类号： G11C11/16 ,  G06N3/063

摘要： An apparatus is provided that includes an array including m rows and n columns of nodes. Each column of nodes is coupled to one of n first conductive lines, and each row of nodes is coupled to one of m second conductive lines. Each node of the m rows and n columns of nodes includes a spin orbit torque-based spin torque oscillator circuit configured to oscillate at a corresponding intrinsic frequency. The spin orbit torque-based spin torque oscillator circuits are configured to generate m output signals at the m second conductive lines upon application of n input signals to corresponding n first conductive lines. The n input signals correspond to an n-element input vector, and each input signal includes a corresponding input signal frequency. Each of the m output signals include frequency domain components at the input signal frequencies. The magnitudes of the frequency domain components at the input signal frequencies depend on a degree of synchronization between the input signal frequencies and the intrinsic frequencies.