JP7438699B2 - サスペンションストローク増加のための多層ｐｚｔ電極構成 - Google Patents

サスペンションストローク増加のための多層ｐｚｔ電極構成 Download PDF

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Publication number
JP7438699B2
JP7438699B2 JP2019167400A JP2019167400A JP7438699B2 JP 7438699 B2 JP7438699 B2 JP 7438699B2 JP 2019167400 A JP2019167400 A JP 2019167400A JP 2019167400 A JP2019167400 A JP 2019167400A JP 7438699 B2 JP7438699 B2 JP 7438699B2
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Japan
Prior art keywords
layer
pzt
electrode
shorter
single active
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Japanese (ja)
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JP2020043345A (ja
JP2020043345A5 (enExample
Inventor
ジャン ロン
チー イー クエン
グライス ダビッド
ハーン ピーター
フー ジョナサン
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Magnecomp Corp
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Magnecomp Corp
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Priority to JP2024020269A priority Critical patent/JP7705495B2/ja
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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4826—Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive
    • G11B5/483—Piezoelectric devices between head and arm, e.g. for fine adjustment
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4873—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising piezoelectric or other actuators for adjustment of the arm
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/87—Electrodes or interconnections, e.g. leads or terminals
    • H10N30/871—Single-layered electrodes of multilayer piezoelectric or electrostrictive devices, e.g. internal electrodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/87—Electrodes or interconnections, e.g. leads or terminals
    • H10N30/872—Interconnections, e.g. connection electrodes of multilayer piezoelectric or electrostrictive devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
JP2019167400A 2018-09-13 2019-09-13 サスペンションストローク増加のための多層ｐｚｔ電極構成 Active JP7438699B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2024020269A JP7705495B2 (ja) 2018-09-13 2024-02-14 サスペンションストローク増加のための多層ｐｚｔ電極構成

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862730979P 2018-09-13 2018-09-13
US62/730,979 2018-09-13
US16/565,060 US11495731B2 (en) 2018-09-13 2019-09-09 Multilayer PZT electrode configuration for suspension stroke increase
US16/565,060 2019-09-09

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2024020269A Division JP7705495B2 (ja) 2018-09-13 2024-02-14 サスペンションストローク増加のための多層ｐｚｔ電極構成

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JP2020043345A JP2020043345A (ja) 2020-03-19
JP2020043345A5 JP2020043345A5 (enExample) 2022-09-20
JP7438699B2 true JP7438699B2 (ja) 2024-02-27

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JP2019167400A Active JP7438699B2 (ja) 2018-09-13 2019-09-13 サスペンションストローク増加のための多層ｐｚｔ電極構成
JP2024020269A Active JP7705495B2 (ja) 2018-09-13 2024-02-14 サスペンションストローク増加のための多層ｐｚｔ電極構成

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Country Link
US (1) US11495731B2 (enExample)
JP (2) JP7438699B2 (enExample)
CN (1) CN110895949B (enExample)

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* Cited by examiner, † Cited by third party
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JP2020145514A (ja) * 2019-03-04 2020-09-10 株式会社東芝 マイクロアクチュエータ、ヘッドサスペンションアッセンブリおよびディスク装置
US11152024B1 (en) 2020-03-30 2021-10-19 Western Digital Technologies, Inc. Piezoelectric-based microactuator arrangement for mitigating out-of-plane force and phase variation of flexure vibration
US11900972B2 (en) 2020-06-10 2024-02-13 Magnecomp Corporation Non-operational shock mitigation for a suspension device
US12586604B2 (en) * 2023-05-26 2026-03-24 Magnecomp Corporation Gimbal design for hard disk drive device

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Publication number Publication date
JP2020043345A (ja) 2020-03-19
US20200091404A1 (en) 2020-03-19
CN110895949A (zh) 2020-03-20
CN110895949B (zh) 2023-02-28
JP2024063037A (ja) 2024-05-10
JP7705495B2 (ja) 2025-07-09
US11495731B2 (en) 2022-11-08

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