- Patent Title: Piezoelectric disk drive suspension motors having plated stiffeners
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Application No.: US15398180Application Date: 2017-01-04
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Publication No.: US09715890B2Publication Date: 2017-07-25
- Inventor: Jacob D. Bjorstrom
- Applicant: Hutchinson Technology Incorporated
- Applicant Address: US MN Hutchinson
- Assignee: Hutchinson Technology Incorporated
- Current Assignee: Hutchinson Technology Incorporated
- Current Assignee Address: US MN Hutchinson
- Agency: Nixon Peabody LLP
- Main IPC: G11B5/48
- IPC: G11B5/48

Abstract:
Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal on which a motor is mounted. The motor comprises a first terminal, one or more layers of piezoelectric material, and a metal stiffener disposed directly on the first terminal. The stiffener comprises a layer of metal defining a majority of a top side of the motor. The first terminal can be gold sputtered on the piezoelectric material while the stiffener can be nickel plated on the gold. The stiffener can cause the motor, and the flexure on which it is mounted, to curl upon electrical activation of the motor.
Public/Granted literature
- US20170117009A1 PIEZOELECTRIC DISK DRIVE SUSPENSION MOTORS HAVING PLATED STIFFENERS Public/Granted day:2017-04-27
Information query
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