Invention Grant
US08995094B1 Disk drive head suspension with a dual dimple and a flexure tongue with a piezoelectric microactuator
有权
磁盘驱动头悬挂,带有双凹坑和带压电微致动器的弯曲舌头
- Patent Title: Disk drive head suspension with a dual dimple and a flexure tongue with a piezoelectric microactuator
- Patent Title (中): 磁盘驱动头悬挂,带有双凹坑和带压电微致动器的弯曲舌头
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Application No.: US14298709Application Date: 2014-06-06
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Publication No.: US08995094B1Publication Date: 2015-03-31
- Inventor: Yih-Jen Dennis Chen , Tzong-Shii Pan
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G11B21/21
- IPC: G11B21/21 ; G11B5/48

Abstract:
A disk drive head gimbal assembly (HGA) includes a distal region that includes a load beam dimple having a protruding convex surface. The HGA includes a laminated flexure having a structural layer with a tongue disposed between two outrigger beams. A piezoelectric element is adhered to the tongue. The tongue includes an actuated portion to which a read head may be adhered, and that is rotated about an axis of rotation by expansion of the piezoelectric element. The tongue also includes a non-actuated portion that is not rotated by expansion of the piezoelectric element. The non-actuated portion of the tongue adjoins and forms a bridge between the two outrigger beams. The bridge includes a flexure dimple that protrudes from the tongue and has a concave surface that is in contact with the convex surface of the load beam dimple.
Information query
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