CN116865712A - 一种薄膜体声波谐振器及其制备方法 - Google Patents
一种薄膜体声波谐振器及其制备方法 Download PDFInfo
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- CN116865712A CN116865712A CN202310896932.8A CN202310896932A CN116865712A CN 116865712 A CN116865712 A CN 116865712A CN 202310896932 A CN202310896932 A CN 202310896932A CN 116865712 A CN116865712 A CN 116865712A
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- 239000000758 substrate Substances 0.000 claims abstract description 180
- 239000000725 suspension Substances 0.000 claims abstract description 26
- 239000010409 thin film Substances 0.000 claims description 63
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000005530 etching Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 5
- 229920005591 polysilicon Polymers 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 4
- 229910012463 LiTaO3 Inorganic materials 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 31
- 238000010586 diagram Methods 0.000 description 29
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- 238000006073 displacement reaction Methods 0.000 description 7
- 230000001902 propagating effect Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000008021 deposition Effects 0.000 description 2
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- 238000013461 design Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
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- 230000003071 parasitic effect Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
- 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 devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02118—Means for compensation or elimination of undesirable effects of lateral leakage between adjacent resonators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/0504—Holders; Supports for bulk acoustic wave devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
- H03H9/131—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials consisting of a multilayered 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310896932.8A CN116865712A (zh) | 2023-07-20 | 2023-07-20 | 一种薄膜体声波谐振器及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310896932.8A CN116865712A (zh) | 2023-07-20 | 2023-07-20 | 一种薄膜体声波谐振器及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116865712A true CN116865712A (zh) | 2023-10-10 |
Family
ID=88233965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310896932.8A Pending CN116865712A (zh) | 2023-07-20 | 2023-07-20 | 一种薄膜体声波谐振器及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116865712A (zh) |
-
2023
- 2023-07-20 CN CN202310896932.8A patent/CN116865712A/zh active Pending
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PB01 | Publication | ||
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TA01 | Transfer of patent application right |
Effective date of registration: 20240507 Address after: 214135 China Sensor Network International Innovation Park F2, 200 Linghu Avenue, Xinwu District, Wuxi City, Jiangsu Province Applicant after: SV SENSTECH (WUXI) CO.,LTD. Country or region after: China Address before: 2 / F, building 3, 439 Chunxiao Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Applicant before: Maigan Microelectronics (Shanghai) Co.,Ltd. Country or region before: China |
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TA01 | Transfer of patent application right |