发明授权
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
- 专利标题: Disk drive head suspension with a dual dimple and a flexure tongue with a piezoelectric microactuator
- 专利标题(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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申请号: US14298709申请日: 2014-06-06
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公开(公告)号: US08995094B1公开(公告)日: 2015-03-31
- 发明人: Yih-Jen Dennis Chen , Tzong-Shii Pan
- 申请人: Western Digital Technologies, Inc.
- 申请人地址: US CA Irvine
- 专利权人: Western Digital Technologies, Inc.
- 当前专利权人: Western Digital Technologies, Inc.
- 当前专利权人地址: US CA Irvine
- 主分类号: G11B21/21
- IPC分类号: G11B21/21 ; G11B5/48
摘要:
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.
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