公开(公告)号：US11468909B1

公开(公告)日：2022-10-11

申请号：US17517061

申请日：2021-11-02

Applicant: Seagate Technology LLC

Inventor： Cho Kok Liang ,  Xiong Liu ,  Than Zaw Myint ,  Yichao Ma

IPC: G11B5/48

Abstract: A data storage device includes a base, a data storage disk, an actuator arm, a suspension, and a piezoelectric actuator. The data storage disk is attached to the base and has a read/write surface defining an x-y plane. The actuator arm is attached to the base at a first pivot point to rotate parallel to the x-y plane. The suspension is attached to the actuator arm at a second pivot point, the suspension having a first end comprising a curved edge surface, and a second end supporting a head that is configured to interact with the read/write surface. The piezoelectric actuator is disposed on the actuator arm and comprises a biasing finger configured to contact the curved edge surface to rotate the suspension parallel to the x-y plane about the second pivot point. An actuator arm assembly and a method of use are also described.

公开(公告)号：US10460758B2

公开(公告)日：2019-10-29

申请号：US15916451

申请日：2018-03-09

Applicant: Seagate Technology LLC

Inventor： Yap Pow Ming ,  Su Ying ,  Cho Kok Liang ,  Lee Chee Xian ,  Lim Jun Long

IPC: G11B17/038 ,  G11B17/028 ,  G11B17/022 ,  G11B17/02 ,  G11B19/20

Abstract: A disk drive assembly including a spindle motor including a hub and a central axis, at least one disk disk having a central opening positioned on the hub and concentric about the central axis, an annular ring member concentric about the central axis, wherein a first portion of the annular ring member is in contact with an outer surface of a top disk of the disk stack, and a disk clamp ring screw adjacent to and in contact with a second portion of the annular ring member, wherein the disk clamp ring screw provides a clamping force to at least partially compress the annular ring member toward the top disk of the disk stack.

公开(公告)号：US20190279677A1

公开(公告)日：2019-09-12

申请号：US15916451

申请日：2018-03-09

Applicant: Seagate Technology LLC

Inventor： Yap Pow Ming ,  Su Ying ,  Cho Kok Liang ,  Lee Chee Xian ,  Lim Jun Long

IPC: G11B17/028

Abstract: A disk drive assembly including a spindle motor including a hub and a central axis, at least one disk disk having a central opening positioned on the hub and concentric about the central axis, an annular ring member concentric about the central axis, wherein a first portion of the annular ring member is in contact with an outer surface of a top disk of the disk stack, and a disk clamp ring screw adjacent to and in contact with a second portion of the annular ring member, wherein the disk clamp ring screw provides a clamping force to at least partially compress the annular ring member toward the top disk of the disk stack.