disc device

By setting protrusions on the flexible part of the disk assembly and using conductive adhesive to bond the electrodes of the piezoelectric element to the pads, the problem of bonding diffusion is solved, and the stability and reliability of the electrical connection are achieved.

CN116798455BActive Publication Date: 2026-06-23KK TOSHIBA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KK TOSHIBA
Filing Date
2022-05-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In disc devices, the joint may be flattened between the piezoelectric element and the flexible element and spread in an undesirable direction, leading to instability of the joint and potential electrical connection problems.

Method used

By providing protrusions on the flexible component, located locally between the first and second joints, and using a conductive adhesive to bond the electrodes of the piezoelectric element to the pads of the flexible component, the diffusion of the joints is restricted, ensuring the stability of the electrical connection.

Benefits of technology

It effectively suppresses the diffusion of the joint in the desired direction, improves the reliability and stability of the electrical connection, and reduces the risk of instability of the joint.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116798455B_ABST
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Abstract

A disk device capable of inhibiting diffusion of a joint body in an undesirable direction is provided. A disk device of one embodiment includes a magnetic disk, a head, a flexible member, a piezoelectric element, a first joint body, a second joint body, and a protrusion. The flexible member has a first outer surface and a first land and a second land provided to the first outer surface. The piezoelectric element has a second outer surface facing the first outer surface and a first electrode and a second electrode provided to the second outer surface. The first joint body joins the first land and the first electrode. The second joint body joins the second land and the second electrode. The protrusion is provided to the flexible member, is positioned between the first joint body and the second joint body, and protrudes from the first outer surface.
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Citation Information

Patent Citations

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