Invention Grant
- Patent Title: Dual stage actuated suspension having shear-mode PZT actuators for rotating gimbal tongue
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Application No.: US15876620Application Date: 2018-01-22
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Publication No.: US10482909B2Publication Date: 2019-11-19
- Inventor: Kuen Chee Ee
- Applicant: Magnecomp Corporation
- Applicant Address: US CA Murrieta
- Assignee: Magnecomp Corporation
- Current Assignee: Magnecomp Corporation
- Current Assignee Address: US CA Murrieta
- Agency: DLA Piper LLP (US)
- Main IPC: G11B5/596
- IPC: G11B5/596 ; G11B5/48 ; G11B5/60

Abstract:
A dual stage actuated (DSA) suspension uses two shear-mode PZT microactuators to finely position the head slider. The bottom surfaces of the PZTs are affixed to the flexure, and the PZT top surfaces move forward and backward, respectively, in push-pull fashion when the PZTs are activated. Flexible connector arms attach the tops surfaces of the PZTs to the gimbal tongue such that activating the PZTs causes the gimbal tongue to rotate, with the connector arms acting as levers to magnify the motion such that a relatively small shear movement of the PZTs results in a significantly larger lateral movement of the head slider across the data disk.
Public/Granted literature
- US20180144767A1 Dual Stage Actuated Suspension Having Shear-Mode PZT Actuators for Rotating Gimbal Tongue Public/Granted day:2018-05-24
Information query
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