JP4778003B2 - 積層型超音波トランスデューサ及びその製造方法 - Google Patents
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- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
- A45D1/04—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel by electricity
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/06—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with two or more jaws
- A45D1/08—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with two or more jaws the jaws remaining parallel to each other during use, e.g. the jaws sliding parallel to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
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- 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
- H10N30/01—Manufacture or treatment
- H10N30/05—Manufacture of multilayered piezoelectric or electrostrictive devices, or parts thereof, e.g. by stacking piezoelectric bodies and electrodes
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- 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
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- 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
- H10N30/875—Further connection or lead arrangements, e.g. flexible wiring boards, terminal pins
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D2001/002—Accessories therefor
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49005—Acoustic transducer
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- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
Description
V(N)=V(1)/N
Z(N)=Z(1)/N2
前記式において、Nは基板の数であり、Vは電圧であり、Zはインピーダンスである。
本発明による積層型超音波トランスデューサは、以下のような方法により製造される。
積層型超音波トランスデューサのそれぞれのパルスエコー特性について、米国特許第6、437、487号のPZT(Acuson P2−3AC、韓国メディソン社製)単層トランスデューサ(比較例1)と、PMN-(0.3〜0.35)PT系単層トランスデューサ(比較例2)とを比較して、その結果を下記の表1及び図9〜図11に示す。
Claims (9)
- 圧電基板積層体において、
第1圧電基板であって、前記第1圧電基板の第1及び第2主面、第1及び第2側面上に形成されている第1電極層を備え、前記第1電極層を第1電極と第2電極とにそれぞれ分離する第1及び第2主面上に第1及び第2溝が形成されている第1圧電基板と、
第2圧電基板であって、前記第2圧電基板の第1及び第2主面、第1及び第2側面上に形成されている第2電極層を備え、第2電極層を第3電極と第4電極にそれぞれ分離する第3溝及びエッジ研磨部が形成され、前記第3溝は前記第2圧電基板の前記第1主面に形成されている第2圧電基板を含み、前記エッジ研磨部は前記第2圧電基板の前記第2主面と前記第2側面との間のエッジ部分を研磨して形成され、
ここで、前記第1圧電基板と前記第2圧電基板は、前記第2溝と前記第3溝とが互いに向かい合って第1電極ノードと第2電極ノードを形成し、前記第1電極ノードは前記第1及び前記第4電極を有し、前記第2電極ノードは前記第2及び第3電極を有し、
前記第2溝は、前記第1溝よりも広く、前記第3溝の広さと大体同じであることを特
徴とする圧電基板積層体。 - 前記第1及び第2圧電基板は、圧電単結晶基板であることを特徴とする請求項1に記載
の圧電基板積層体。 - 前記第1及び第2圧電基板は、圧電セラミック基板であることを特徴とする請求項1に記載の圧電基板積層体。
- 前記第1、第2及び第3溝がそれぞれ前記圧電基板の厚さの70〜80%の深さで形成されていることを特徴とする請求項1に記載の圧電基板積層体。
- 前記第2溝及び第3溝の幅が0.2〜0.5mmの範囲であり、前記第1溝の幅が0.03〜0.1mmの範囲であることを特徴とする請求項1に記載の圧電基板積層体。
- 前記第1及び第2溝が前記第1圧電基板の前記第1及び第2側面のそれぞれに1〜1.5mmだけ離れて内側へ形成されており、前記第3溝が前記第2圧電基板の前記第1側面に1〜1.5mmだけ離れて内側へ形成されていることを特徴とする請求項1に記載の圧電基板積層体。
- 請求項1に記載の前記圧電基板積層体を含む積層型超音波トランスデューサ。
- 前記第1電極ノードに接合されている信号用柔軟性印刷回路基板と、
前記信号用柔軟性印刷回路基板により取り囲まれている後面層と、
前記第2電極ノードに接合されている接地用柔軟性印刷回路基板と、
前記圧電基板積層体の上部に積層されている音響整合層とを更に含むことを特徴とする、請求項7に記載の積層型超音波トランスデューサ。 - 伝導性物質の電極層が塗布されている第1及び第2圧電基板をそれぞれ用意し、
前記第1及び第2圧電基板の上面及び下面に第1、2、3溝及びエッジ研磨部を設け、前記電極層を第1、2、3、4電極に分離して形成し、
前記エッジ研磨部は前記第2圧電基板の下面と側面との間のエッジ部分を研磨して形成され、
前記第1圧電基板の前記第2溝と前記第2圧電基板の前記第3溝とを互いに向かい合うようにそれぞれの上部に前記第1及び第2圧電基板を積層し、前記第1電極と第4電極を第1電極ノードに、前記第2電極と第3電極を第2電極ノードに形成する、
ことを含む製造方法により圧電基板積層体を製造し、
前記第1電極ノードに信号用柔軟性印刷回路基板を接合し、
前記第2電極ノードに接地用柔軟性印刷回路基板を接合し、
前記積層型圧電基板に音響整合層を形成することを含む積層型超音波トランスデューサの製造方法。
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KR20050014314A KR100722370B1 (ko) | 2005-02-22 | 2005-02-22 | 적층형 초음파 탐촉자 및 이의 제조방법 |
KR10-2005-0014314 | 2005-02-22 | ||
PCT/KR2005/004190 WO2006090969A1 (en) | 2005-02-22 | 2005-12-08 | Multilayer ultrasonic transducer and method for manufacturing same |
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JP2011104584A Active JP5318904B2 (ja) | 2005-02-22 | 2011-05-09 | 積層型超音波トランスデューサ及びその製造方法 |
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US (1) | US7573181B2 (ja) |
EP (1) | EP1854158B1 (ja) |
JP (2) | JP4778003B2 (ja) |
KR (1) | KR100722370B1 (ja) |
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US9184369B2 (en) | 2008-09-18 | 2015-11-10 | Fujifilm Sonosite, Inc. | Methods for manufacturing ultrasound transducers and other components |
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US20110109203A1 (en) * | 2009-11-06 | 2011-05-12 | The Trustees Of Princeton University | Flexible piezoelectric structures and method of making same |
US8264129B2 (en) | 2010-07-21 | 2012-09-11 | General Electric Company | Device and system for measuring material thickness |
US8680745B2 (en) | 2010-07-21 | 2014-03-25 | General Electric Company | Device for measuring material thickness |
WO2012066430A1 (en) | 2010-11-18 | 2012-05-24 | Koninklijke Philips Electronics N.V. | Medical device with ultrasound transducers embedded in flexible foil |
WO2013047544A1 (ja) * | 2011-09-30 | 2013-04-04 | 株式会社村田製作所 | 超音波センサ |
US8857261B2 (en) | 2012-04-12 | 2014-10-14 | General Electric Company | Sensing device and method of attaching the same |
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Also Published As
Publication number | Publication date |
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KR100722370B1 (ko) | 2007-05-29 |
JP2008531110A (ja) | 2008-08-14 |
JP5318904B2 (ja) | 2013-10-16 |
CN101128944A (zh) | 2008-02-20 |
JP2011205663A (ja) | 2011-10-13 |
EP1854158A1 (en) | 2007-11-14 |
EP1854158A4 (en) | 2011-08-10 |
US7573181B2 (en) | 2009-08-11 |
US20080018205A1 (en) | 2008-01-24 |
EP1854158B1 (en) | 2013-04-24 |
KR20060093469A (ko) | 2006-08-25 |
WO2006090969A1 (en) | 2006-08-31 |
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