JP7841709B2 - バルク弾性波共振器、及びバルク弾性波共振器を形成する方法 - Google Patents
バルク弾性波共振器、及びバルク弾性波共振器を形成する方法Info
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- JP7841709B2 JP7841709B2 JP2022163837A JP2022163837A JP7841709B2 JP 7841709 B2 JP7841709 B2 JP 7841709B2 JP 2022163837 A JP2022163837 A JP 2022163837A JP 2022163837 A JP2022163837 A JP 2022163837A JP 7841709 B2 JP7841709 B2 JP 7841709B2
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
- H03H9/133—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials for electromechanical delay lines or filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/173—Air-gaps
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/175—Acoustic mirrors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
- H03H9/566—Electric coupling means therefor
- H03H9/568—Electric coupling means therefor consisting of a ladder configuration
-
- 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
- H10N30/057—Manufacture of multilayered piezoelectric or electrostrictive devices, or parts thereof, e.g. by stacking piezoelectric bodies and electrodes by stacking bulk piezoelectric or electrostrictive bodies and 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
- H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H2003/0071—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks of bulk acoustic wave and surface acoustic wave elements in the same process
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H2003/023—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks the resonators or networks being of the membrane type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
- H03H2003/0414—Resonance frequency
- H03H2003/0421—Modification of the thickness of an element
- H03H2003/0435—Modification of the thickness of an element of a piezoelectric layer
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
Claims (9)
- バルク弾性波共振器であって、
2を超える奇数の層の圧電材料を有する圧電膜を含むメンブレンを含み、
前記2を超える奇数の層の圧電材料のうち真ん中の層は、前記2を超える奇数の層の圧電材料のうちの他層よりも高いドーピングレベルを有し、前記2を超える奇数の層の圧電材料のうちの他層の厚さよりも大きな厚さを有し、かつ、前記2を超える奇数の層の圧電材料のうちの他層の厚さの和に近似的に等しい厚さを有する、バルク弾性波共振器。 - 前記2を超える奇数の層の圧電材料は、前記圧電膜の入力側から出力側への方向においてドーピング濃度及び厚さに関して対称的に配列される、請求項1のバルク弾性波共振器。
- 前記2を超える奇数の層の圧電材料のうちの真ん中の層は、ScがドーピングされたAlNから形成され、
前記2を超える奇数の層の圧電材料のうちの他層は未ドーピングAlNから形成される、請求項1のバルク弾性波共振器。 - 薄膜バルク弾性波共振器として構成される請求項1のバルク弾性波共振器。
- ソリッドマウント共振器として構成される請求項1のバルク弾性波共振器。
- 無線周波数フィルタに含まれる請求項1のバルク弾性波共振器。
- 電子デバイスモジュールに含まれる請求項6のバルク弾性波共振器。
- 電子デバイスに含まれる請求項7のバルク弾性波共振器。
- バルク弾性波共振器を形成する方法であって、
2を超える奇数の層の圧電材料を形成することによって前記バルク弾性波共振器のためのメンブレンを形成することを含み、
前記2を超える奇数の層の圧電材料のうち真ん中の層は、前記2を超える奇数の層の圧電材料のうちの他層よりも高いドーピングレベルを有し、前記2を超える奇数の層の圧電材料のうちの他層の厚さよりも大きな厚さを有し、かつ、前記2を超える奇数の層の圧電材料のうちの他層の厚さの和に近似的に等しい厚さを有する、方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202163256065P | 2021-10-15 | 2021-10-15 | |
| US63/256065 | 2021-10-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2023059846A JP2023059846A (ja) | 2023-04-27 |
| JP2023059846A5 JP2023059846A5 (ja) | 2025-10-08 |
| JP7841709B2 true JP7841709B2 (ja) | 2026-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022163837A Active JP7841709B2 (ja) | 2021-10-15 | 2022-10-12 | バルク弾性波共振器、及びバルク弾性波共振器を形成する方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US12244292B2 (ja) |
| JP (1) | JP7841709B2 (ja) |
| KR (1) | KR20230054278A (ja) |
| CN (1) | CN115987240A (ja) |
| DE (1) | DE102022210753A1 (ja) |
| GB (1) | GB2613448B (ja) |
| TW (1) | TW202404256A (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12404167B2 (en) | 2021-09-28 | 2025-09-02 | Skyworks Global Pte. Ltd. | Piezoelectric MEMS device with thermal compensation from different material thicknesses |
| US20230318570A1 (en) | 2022-03-30 | 2023-10-05 | Skyworks Solutions, Inc. | Bulk acoustic wave devices with suppressed nonlinear response |
| US20240322790A1 (en) * | 2023-03-23 | 2024-09-26 | Carnegie Mellon University | Overmoded Bulk Acoustic Resonators and Method of Fabricating |
| CN118890952A (zh) * | 2024-09-29 | 2024-11-01 | 成都纤声科技有限公司 | 压电堆栈结构、微机电系统及压电堆栈结构的制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005353755A (ja) | 2004-06-09 | 2005-12-22 | Seiko Epson Corp | 圧電素子、圧電アクチュエーター、圧電ポンプ、インクジェット式記録ヘッド、インクジェットプリンター、表面弾性波素子、周波数フィルタ、発振器、電子回路、薄膜圧電共振器、および電子機器 |
| JP2007181185A (ja) | 2005-12-01 | 2007-07-12 | Sony Corp | 音響共振器およびその製造方法 |
| JP2017108125A (ja) | 2015-11-27 | 2017-06-15 | キヤノン株式会社 | 圧電素子、圧電素子の製造方法、圧電アクチュエータおよび電子機器 |
| JP2018023082A (ja) | 2016-08-03 | 2018-02-08 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | バルク音響共振器及びこれを含むフィルタ |
| CN111010131A (zh) | 2019-06-06 | 2020-04-14 | 天津大学 | 掺杂浓度变化的体声波谐振器、滤波器及电子设备 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9450561B2 (en) * | 2009-11-25 | 2016-09-20 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bulk acoustic wave (BAW) resonator structure having an electrode with a cantilevered portion and a piezoelectric layer with varying amounts of dopant |
| US10312882B2 (en) * | 2015-07-22 | 2019-06-04 | Cindy X. Qiu | Tunable film bulk acoustic resonators and filters |
| TWI781882B (zh) | 2017-07-07 | 2022-10-21 | 美商天工方案公司 | 用於改良聲波濾波器之替代氮化鋁 |
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2022
- 2022-10-12 US US18/045,891 patent/US12244292B2/en active Active
- 2022-10-12 CN CN202211245532.2A patent/CN115987240A/zh active Pending
- 2022-10-12 TW TW111138532A patent/TW202404256A/zh unknown
- 2022-10-12 KR KR1020220130384A patent/KR20230054278A/ko active Pending
- 2022-10-12 DE DE102022210753.5A patent/DE102022210753A1/de active Pending
- 2022-10-12 JP JP2022163837A patent/JP7841709B2/ja active Active
- 2022-10-12 GB GB2215009.8A patent/GB2613448B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005353755A (ja) | 2004-06-09 | 2005-12-22 | Seiko Epson Corp | 圧電素子、圧電アクチュエーター、圧電ポンプ、インクジェット式記録ヘッド、インクジェットプリンター、表面弾性波素子、周波数フィルタ、発振器、電子回路、薄膜圧電共振器、および電子機器 |
| JP2007181185A (ja) | 2005-12-01 | 2007-07-12 | Sony Corp | 音響共振器およびその製造方法 |
| JP2017108125A (ja) | 2015-11-27 | 2017-06-15 | キヤノン株式会社 | 圧電素子、圧電素子の製造方法、圧電アクチュエータおよび電子機器 |
| JP2018023082A (ja) | 2016-08-03 | 2018-02-08 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | バルク音響共振器及びこれを含むフィルタ |
| CN111010131A (zh) | 2019-06-06 | 2020-04-14 | 天津大学 | 掺杂浓度变化的体声波谐振器、滤波器及电子设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| US12244292B2 (en) | 2025-03-04 |
| DE102022210753A1 (de) | 2023-04-20 |
| US20230124493A1 (en) | 2023-04-20 |
| TW202404256A (zh) | 2024-01-16 |
| GB2613448B (en) | 2024-04-10 |
| KR20230054278A (ko) | 2023-04-24 |
| CN115987240A (zh) | 2023-04-18 |
| GB2613448A (en) | 2023-06-07 |
| JP2023059846A (ja) | 2023-04-27 |
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