KR20010104201A - 압전 액츄에이터 및 정보 기억 장치 - Google Patents
압전 액츄에이터 및 정보 기억 장치 Download PDFInfo
- Publication number
- KR20010104201A KR20010104201A KR1020010004085A KR20010004085A KR20010104201A KR 20010104201 A KR20010104201 A KR 20010104201A KR 1020010004085 A KR1020010004085 A KR 1020010004085A KR 20010004085 A KR20010004085 A KR 20010004085A KR 20010104201 A KR20010104201 A KR 20010104201A
- Authority
- KR
- South Korea
- Prior art keywords
- head
- piezoelectric
- arm
- actuator
- piezoelectric actuator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003860 storage Methods 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims description 22
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- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 238000006073 displacement reaction Methods 0.000 abstract description 18
- 239000010410 layer Substances 0.000 description 147
- 239000000725 suspension Substances 0.000 description 32
- 239000000919 ceramic Substances 0.000 description 9
- 238000012545 processing Methods 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
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- 238000005238 degreasing Methods 0.000 description 3
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- 230000005415 magnetization Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- 238000004080 punching Methods 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 210000003793 centrosome Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
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- 238000007650 screen-printing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
-
- 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
-
- 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
- H10N30/506—Piezoelectric or electrostrictive devices having a stacked or multilayer structure having a cylindrical shape and having stacking in the radial direction, e.g. coaxial or spiral type rolls
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2508—Magnetic discs
- G11B2220/2516—Hard disks
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Moving Of Heads (AREA)
Abstract
Description
Claims (5)
- 중심부와, 이 중심부에서 바깥쪽으로 회전 대칭이면서 비선대칭으로 뻗은 아암(arm)부군을 갖는 2차원 형상의 압전 재료로 되는 층 안쪽 방향으로 압축 신장하는 압전층과,상기 압전층을 사이에 끼는 복수의 전극층을 구비한 것을 특징으로 하는 압전 액츄에이터.
- 압전 재료로 되는 하나 이상의 압전층과 이 압전층을 사이에 끼는 복수의 전극층으로 되는 적층 구조를 갖는, 그 적층 구조의 적층 방향으로 압축 신장하는 구동부와,상기 구동부의 복수를 소정의 공통면 내의 적층 방향도 포함시켜서 회전 대칭이면서 비선대칭인 배치로 보지하는 보지부를 구비한 것을 특징으로 하는 압전 액츄에이터.
- 제2 항에 있어서,상기 구동부에 대하여, 이 구동부가 압축 신장하는 방향과 교차되는 방향으로 인접하는 부동부를 구비하고,상기 보지부가 상기 구동부와 상기 부동부와의 쌍인 2쌍을 서로 한쪽 쌍의 구동부가 다른 쪽 쌍의 부동부에 대하여 그 구동부의 압축 신장 방향을 향해서 대향하도록 보지하는 것을 특징으로 하는 압전 액츄에이터.
- 소정의 정보 기억 매체에 대한 정보 기록 및 정보 재생 중의 적어도 어느 하나를 행하는 헤드가 탑재된 헤드부와,상기 헤드부에 탑재되어 있는 헤드가 상기 정보 기억 매체에 대하여 근접 또는 접촉하도록 이 헤드부를 보지하는 아암부와,상기 아암부를 구동함으로써, 그 아암부에 보지된 헤드부에 탑재된 헤드를 상기 정보 기억 매체를 따라 이동시키는 아암부 액츄에이터와,상기 아암부에 대하여 상기 헤드부를, 이 헤드부의 무게 중심을 중심(中心)으로 하여 회동시키는 헤드부 액츄에이터를 구비하고,상기 헤드부 액츄에이터가,중심부와, 이 중심부로부터 바깥쪽으로 회전 대칭이면서 비선대칭으로 뻗은 아암부군을 갖는 2차원 형상의, 압전 재료로 되는 층 안쪽 방향으로 압축 신장하는 압전층과,상기 압전층을 사이에 끼는 복수의 전극층을 구비한 것을 특징으로 하는 정보 기억 장치.
- 소정정보 기억 매체에 대한 정보 기록 및 정보 재생 중의 적어도 어느 하나를 행하는 헤드가 탑재된 헤드부와,상기 헤드부에 탑재되어 있는 헤드가 상기 정보 기억 매체에 대하여 근접 또는 접촉하도록 이 헤드부를 보지하는 아암부와,상기 아암부를 구동함으로써, 그 아암부에 보지된 헤드부에 탑재된 헤드를 상기 정보 기억 매체를 따라 이동시키는 아암부 액츄에이터와,상기 아암부에 대하여 상기 헤드부를, 이 헤드부의 무게 중심을 중심으로 하여 회동시키는 헤드부 액츄에이터를 구비하고,상기 헤드부 액츄에이터가,압전 재료로 되는 하나 이상의 압전층과 이 압전층을 사이에 끼는 복수의 전극층으로 되는 적층 구조를 갖는, 그 적층 구조의 적층 방향으로 압축 신장하는 구동부와,상기 구동부의 복수를 소정의 공통면 내의 적층 방향도 포함시켜서 회전 대칭이면서 비선대칭인 배치로 보지하는 보지부를 구비한 것을 특징으로 하는 정보 기억 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000140306A JP3857020B2 (ja) | 2000-05-12 | 2000-05-12 | 圧電アクチュエータおよび情報記憶装置 |
JP2000-140306 | 2000-05-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010104201A true KR20010104201A (ko) | 2001-11-24 |
KR100691683B1 KR100691683B1 (ko) | 2007-03-09 |
Family
ID=18647625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020010004085A Expired - Fee Related KR100691683B1 (ko) | 2000-05-12 | 2001-01-29 | 압전 액츄에이터 및 정보 기억 장치 |
Country Status (5)
Country | Link |
---|---|
US (2) | US6587313B2 (ko) |
EP (1) | EP1154496B1 (ko) |
JP (1) | JP3857020B2 (ko) |
KR (1) | KR100691683B1 (ko) |
DE (1) | DE60130940T2 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100780940B1 (ko) * | 2004-07-29 | 2007-12-03 | 삼성전자주식회사 | 하드 디스크 드라이브의 헤드 짐발 조립체 및 이를 구비한보이스 코일 액츄에이터와 그 제조 방법 |
Families Citing this family (26)
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CN1142544C (zh) * | 1998-11-13 | 2004-03-17 | Tdk株式会社 | 写/读头支撑机构以及写/读系统 |
JP3857020B2 (ja) * | 2000-05-12 | 2006-12-13 | 富士通株式会社 | 圧電アクチュエータおよび情報記憶装置 |
CN1162859C (zh) * | 2000-06-08 | 2004-08-18 | 新科实业有限公司 | 采用环形旋转压电执行机构的高密度硬盘驱动器的双级执行机构系统 |
WO2003090338A2 (de) * | 2002-04-22 | 2003-10-30 | Elliptec Resonant Actuator Ag | Piezomotor |
EP1381146B1 (en) * | 2001-04-19 | 2007-06-13 | Fujitsu Limited | Piezoelectric actuator and information storage device |
JP2003091953A (ja) * | 2001-09-18 | 2003-03-28 | Data Strage Inst | スライダ装置 |
JP3756109B2 (ja) * | 2001-11-28 | 2006-03-15 | 富士通メディアデバイス株式会社 | 磁気ヘッド支持機構及び磁気ヘッド位置決め制御機構 |
US6961221B1 (en) * | 2001-12-18 | 2005-11-01 | Western Digital (Fremont), Inc. | Piezoelectric microactuators with substantially fixed axis of rotation and magnified stroke |
SG113413A1 (en) * | 2002-04-12 | 2005-08-29 | Inst Data Storage | Shear mode piezoelectric actuator assembly |
US7368853B2 (en) | 2002-04-22 | 2008-05-06 | Elliptec Resonant Actuator Aktiengesellschaft | Piezoelectric motors and methods for the production and operation thereof |
US7057858B2 (en) * | 2002-04-24 | 2006-06-06 | International Business Machines Corporation | Slide microactuator using C-shaped piezoelectric element |
JP2004282089A (ja) * | 2004-03-31 | 2004-10-07 | Univ Kyoto | 機能素子、機能素子を用いた装置、および機能素子の製造方法 |
US7345851B2 (en) * | 2004-08-26 | 2008-03-18 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive with rotary piezoelectric microactuator |
US7382583B2 (en) * | 2004-08-26 | 2008-06-03 | Hitachi Global Storage Technologies Netherlands B.V. | Rotary piezoelectric microactuator and disk drive head-suspension assembly |
US7301724B2 (en) * | 2004-09-08 | 2007-11-27 | Hewlett-Packard Development Company, L.P. | Transducing head |
US20060098347A1 (en) * | 2004-11-10 | 2006-05-11 | Sae Magnetics (H.K.) Ltd. | Micro-actuator, head gimbal assembly and disk drive unit with the same |
US7277258B2 (en) * | 2005-06-21 | 2007-10-02 | Hitachi Global Storage Technologies Netherlands B.V. | Dual-stage actuator disk drive with optimal location of the movable portion of the secondary actuator |
US7417831B2 (en) * | 2005-11-03 | 2008-08-26 | Sae Magnetics (H.K.) Ltd. | Micro-actuator and head gimbal assembly for a disk drive device |
US7282836B2 (en) * | 2005-12-08 | 2007-10-16 | Samsung Electronics Co., Ltd. | Method and apparatus for a D33 mode piezoelectric actuator with a bending motion |
JP2007265570A (ja) | 2006-03-29 | 2007-10-11 | Fujitsu Ltd | 微小変位機構及び磁気ディスク装置 |
JP2008004764A (ja) * | 2006-06-22 | 2008-01-10 | Fujitsu Ltd | 圧電アクチュエータおよびその製造方法、磁気ディスク装置 |
US8223461B2 (en) * | 2007-09-28 | 2012-07-17 | Hitachi Global Storage Technologies, Netherlands B.V. | Pure rotary microactuator |
JP2010233339A (ja) * | 2009-03-26 | 2010-10-14 | Seiko Epson Corp | 圧電モーター、液体噴射装置及び時計 |
JP4944159B2 (ja) * | 2009-06-02 | 2012-05-30 | Tdk株式会社 | 圧電アクチュエータ及び圧電アクチュエータの製造方法 |
DE102010029278B4 (de) * | 2010-05-25 | 2019-05-23 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Sensor und Aktuator für mehrere Rotationsfreiheitsgrade |
US9847296B2 (en) * | 2014-02-14 | 2017-12-19 | Taiwan Semiconductor Manufacturing Company, Ltd. | Barrier layer and structure method |
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FR2501863A1 (fr) * | 1981-03-10 | 1982-09-17 | Asulab Sa | Element vibrant pour detecteur de pression et detecteur de pression comportant un tel element |
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JPH04134763A (ja) | 1990-09-26 | 1992-05-08 | Nec Corp | 磁気ヘッド,磁気ヘッド組立体およびこれを用いた磁気ディスク装置 |
US5521778A (en) * | 1994-08-30 | 1996-05-28 | International Business Machines Corporation | Disk drive with primary and secondary actuator drives |
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US6246552B1 (en) * | 1996-10-31 | 2001-06-12 | Tdk Corporation | Read/write head including displacement generating means that elongates and contracts by inverse piezoelectric effect of electrostrictive effect |
JP3190613B2 (ja) * | 1997-03-31 | 2001-07-23 | セイコーインスツルメンツ株式会社 | 圧電アクチュエータ |
US6327120B1 (en) * | 1997-04-17 | 2001-12-04 | Fujitsu Limited | Actuator using piezoelectric element and head-positioning mechanism using the actuator |
JP4017237B2 (ja) * | 1998-03-12 | 2007-12-05 | 富士通株式会社 | 磁気ヘッドスライダ |
US6028389A (en) * | 1998-05-26 | 2000-02-22 | The Charles Stark Draper Laboratory, Inc. | Micromachined piezoelectric transducer |
WO2000030109A1 (fr) * | 1998-11-13 | 2000-05-25 | Tdk Corporation | Mecanisme de support de tete d'enregistrement / reproduction et appareil d'enregistrement / reproduction |
JP3857020B2 (ja) * | 2000-05-12 | 2006-12-13 | 富士通株式会社 | 圧電アクチュエータおよび情報記憶装置 |
-
2000
- 2000-05-12 JP JP2000140306A patent/JP3857020B2/ja not_active Expired - Fee Related
-
2001
- 2001-01-16 US US09/761,282 patent/US6587313B2/en not_active Expired - Fee Related
- 2001-01-19 DE DE60130940T patent/DE60130940T2/de not_active Expired - Lifetime
- 2001-01-19 EP EP01300453A patent/EP1154496B1/en not_active Expired - Lifetime
- 2001-01-29 KR KR1020010004085A patent/KR100691683B1/ko not_active Expired - Fee Related
-
2003
- 2003-05-08 US US10/434,255 patent/US6721136B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100780940B1 (ko) * | 2004-07-29 | 2007-12-03 | 삼성전자주식회사 | 하드 디스크 드라이브의 헤드 짐발 조립체 및 이를 구비한보이스 코일 액츄에이터와 그 제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
JP2001327178A (ja) | 2001-11-22 |
US6587313B2 (en) | 2003-07-01 |
US20010040773A1 (en) | 2001-11-15 |
JP3857020B2 (ja) | 2006-12-13 |
DE60130940T2 (de) | 2008-01-31 |
US20030193755A1 (en) | 2003-10-16 |
EP1154496A2 (en) | 2001-11-14 |
DE60130940D1 (de) | 2007-11-29 |
EP1154496A3 (en) | 2004-07-14 |
EP1154496B1 (en) | 2007-10-17 |
KR100691683B1 (ko) | 2007-03-09 |
US6721136B2 (en) | 2004-04-13 |
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