JP2014523689A - 超音波振動子アセンブリ及びその製造方法 - Google Patents
超音波振動子アセンブリ及びその製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 239000004065 semiconductor Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- 238000001465 metallisation Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 4
- 238000004544 sputter deposition Methods 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012285 ultrasound imaging Methods 0.000 description 1
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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
- H10N30/06—Forming electrodes or interconnections, e.g. leads or terminals
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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
- B06B1/0622—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 on one surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements
-
- 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
-
- 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
-
- 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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- Life Sciences & Earth Sciences (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
Description
Claims (15)
- 通常の送信方向に超音波を送信するための超音波振動素子を有する超音波振動子アセンブリであって、前記超音波振動素子のそれぞれ又は一部のそれぞれは、
―前記通常の送信方向に対して、上面、下面、及び側面を持つ圧電層、
―下部電極層、及び
―上部電極層、
を有し、
導電層が、前記圧電層の少なくとも1つの特定の圧電層の前記上部電極層及び前記下部電極層に接続されるように、前記圧電層の前記少なくとも1つの特定の層の前記側面に、少なくとも部分的に付与される、超音波振動子アセンブリ。 - 前記特定の圧電層を有する前記超音波振動素子は、超音波を送信又は受信するように動作しないダミー素子である、請求項1に記載の超音波振動子アセンブリ。
- 前記特定の圧電層を有する前記超音波振動素子は、前記超音波振動素子の行又はアレイの中で最も外側の超音波振動素子である、請求項1に記載の超音波振動子アセンブリ。
- 前記導電層が付与される前記側面は、前記超音波振動素子の行又はアレイの中で外側に面している側面である、請求項3に記載の超音波振動子アセンブリ。
- 前記超音波振動素子の前記上部電極層に電気的に接続する導電接続層を更に有する、請求項1に記載の超音波振動子アセンブリ。
- 前記上部電極層に付与される少なくとも1つのマッチング層及び/又は前記下部電極層に付与される少なくとも1つのデマッチング層を更に有する、請求項1に記載の超音波振動子アセンブリ。
- 前記導電層は、前記少なくとも1つのマッチング層及び/又はデマッチング層の前記側面に更に付与される、請求項6に記載の超音波振動子アセンブリ。
- 一番上のマッチング層に付与される上部導電層及び/又は一番下のデマッチング層に付与される下部導電層を更に有する、請求項7に記載の超音波振動子アセンブリ。
- 前記超音波振動素子の前記下部電極層のそれぞれ又は一部は、少なくとも1つの半導体チップに接続される、請求項1に記載の超音波振動子アセンブリ。
- 前記特定の圧電層を有する前記超音波振動素子の前記下部電極層は、外部電気的接続のためにフレキシブル回路に接続される、請求項1に記載の超音波振動子アセンブリ。
- 通常の送信方向に超音波を送信するための超音波振動素子を有する超音波振動子アセンブリの製造方法であって、前記方法は、前記超音波振動素子のそれぞれ又は一部のそれぞれに対して、
―前記通常の送信方向に対して、上面、下面、及び側面を持つ圧電層を提供するステップ、
―下部電極層を付与するステップ、及び
―上部電極層を付与するステップ、
を有し、
前記方法は、前記圧電層の少なくとも1つの特定の圧電層の前記上部電極層及び前記下部電極層に接続されるように、導電層を、前記圧電層の少なくとも1つの特定の層の前記側面に、少なくとも部分的に付与するステップを更に有する、超音波振動子アセンブリの製造方法。 - 前記導電層が、メタライゼーションによって付与される、請求項11に記載の方法。
- 前記メタライゼーションが、スパッタリング又は導電性エポキシの付与によって行われる、請求項12に記載の方法。
- 前記下部電極層、前記上部電極層、及び前記導電層は、圧電材料でできた共通層への1つの共通メタライゼーションステップで付与される、請求項11に記載の方法。
- 前記超音波振動素子は、前記共通メタライゼーションステップが行われた後に、圧電材料でできた前記共通層から切り出される又はダイシングされる、請求項14に記載の方法。
Applications Claiming Priority (3)
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US201161501307P | 2011-06-27 | 2011-06-27 | |
US61/501,307 | 2011-06-27 | ||
PCT/IB2012/053216 WO2013001448A1 (en) | 2011-06-27 | 2012-06-26 | Ultrasound transducer assembly and method of manufacturing the same |
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JP2014523689A true JP2014523689A (ja) | 2014-09-11 |
JP2014523689A5 JP2014523689A5 (ja) | 2015-08-13 |
JP6388536B2 JP6388536B2 (ja) | 2018-09-12 |
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JP2014518018A Active JP6388536B2 (ja) | 2011-06-27 | 2012-06-26 | 超音波振動子アセンブリ及びその製造方法 |
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US (1) | US9293690B2 (ja) |
EP (1) | EP2723506B1 (ja) |
JP (1) | JP6388536B2 (ja) |
CN (1) | CN103635264B (ja) |
WO (1) | WO2013001448A1 (ja) |
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- 2012-06-26 JP JP2014518018A patent/JP6388536B2/ja active Active
- 2012-06-26 CN CN201280031923.2A patent/CN103635264B/zh active Active
- 2012-06-26 US US14/125,958 patent/US9293690B2/en active Active
- 2012-06-26 WO PCT/IB2012/053216 patent/WO2013001448A1/en active Application Filing
- 2012-06-26 EP EP12748535.7A patent/EP2723506B1/en active Active
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US9293690B2 (en) | 2016-03-22 |
WO2013001448A1 (en) | 2013-01-03 |
EP2723506B1 (en) | 2017-02-15 |
EP2723506A1 (en) | 2014-04-30 |
US20140139072A1 (en) | 2014-05-22 |
CN103635264A (zh) | 2014-03-12 |
CN103635264B (zh) | 2016-06-01 |
JP6388536B2 (ja) | 2018-09-12 |
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