CN1521945A - 块体波共振器之音声反射器 - Google Patents
块体波共振器之音声反射器 Download PDFInfo
- Publication number
- CN1521945A CN1521945A CNA2003101148281A CN200310114828A CN1521945A CN 1521945 A CN1521945 A CN 1521945A CN A2003101148281 A CNA2003101148281 A CN A2003101148281A CN 200310114828 A CN200310114828 A CN 200310114828A CN 1521945 A CN1521945 A CN 1521945A
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- Prior art keywords
- layer
- acoustic
- resonator
- baw resonator
- acoustic impedance
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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
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal 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
- 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
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
| 材料 | 纵波的vi | 纵波的zi(106kg/m2s) | 剪切波的vs | 剪切波的zs(106kg/m2s) |
| AL | 6422m/s | 17.3 | 3110m/s | 8.4 |
| W | 5230m/s | 101 | 2860m/s | 55.2 |
| AlN | 10400m/s | 34 | 6036m/s | 19.7 |
| SIo2 | 5970m/s | 13.1 | 3760m/s | 8.3 |
| Si | 8847m/s | 19.3 | 5300m/s | 11.6 |
| SiN | 11150m/s | 36.2 | 6160m/s | 20 |
| 层数目 | 材料 | 关于λlong的层厚度 |
| 112 | SiO2 | 0.770 |
| 114 | 钨 | 0.175 |
| 116 | SiO2 | 0.250 |
| 118 | 钨 | 0.245 |
| 120 | SiO2 | 0.180 |
| 106a | 铝 | 0.130 |
| 106b | 钨 | 0.070 |
| 102 | AlN | 0.220 |
| 104a | 钨 | 0.028 |
| 104b | 铝 | 0.080至0.12 |
| 104c | SiN | 0.008 |
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10251876A DE10251876B4 (de) | 2002-11-07 | 2002-11-07 | BAW-Resonator mit akustischem Reflektor und Filterschaltung |
| DE10251876.9 | 2002-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1521945A true CN1521945A (zh) | 2004-08-18 |
| CN100578931C CN100578931C (zh) | 2010-01-06 |
Family
ID=32103398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200310114828A Expired - Fee Related CN100578931C (zh) | 2002-11-07 | 2003-11-07 | 块体波共振器的音声反射器 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6933807B2 (zh) |
| EP (1) | EP1418671A2 (zh) |
| JP (1) | JP2004159339A (zh) |
| KR (1) | KR20040041029A (zh) |
| CN (1) | CN100578931C (zh) |
| DE (2) | DE10251876B4 (zh) |
| TW (1) | TW200509525A (zh) |
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| CN102291095A (zh) * | 2011-04-27 | 2011-12-21 | 庞慰 | 复合体声波谐振器 |
| CN102118141B (zh) * | 2009-12-31 | 2014-08-13 | 财团法人工业技术研究院 | 共振器、弹性波传输元件及其制造方法 |
| CN107182018B (zh) * | 2017-06-13 | 2019-10-11 | 山西宇翔信息技术有限公司 | 一种声音传感器 |
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| CN119298871B (zh) * | 2024-01-31 | 2025-11-07 | 上海馨欧集成微电有限公司 | 一种高频声波谐振器及通信设备 |
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| US5373268A (en) | 1993-02-01 | 1994-12-13 | Motorola, Inc. | Thin film resonator having stacked acoustic reflecting impedance matching layers and method |
| US5873154A (en) * | 1996-10-17 | 1999-02-23 | Nokia Mobile Phones Limited | Method for fabricating a resonator having an acoustic mirror |
| FI107660B (fi) * | 1999-07-19 | 2001-09-14 | Nokia Mobile Phones Ltd | Resonaattorirakenne |
| GB0014963D0 (en) * | 2000-06-20 | 2000-08-09 | Koninkl Philips Electronics Nv | A bulk acoustic wave device |
-
2002
- 2002-11-07 DE DE10251876A patent/DE10251876B4/de not_active Expired - Fee Related
- 2002-11-07 DE DE10262056A patent/DE10262056B4/de not_active Expired - Fee Related
-
2003
- 2003-11-04 TW TW092130767A patent/TW200509525A/zh unknown
- 2003-11-04 EP EP03025372A patent/EP1418671A2/de not_active Withdrawn
- 2003-11-06 JP JP2003377295A patent/JP2004159339A/ja not_active Abandoned
- 2003-11-06 KR KR1020030078253A patent/KR20040041029A/ko not_active Ceased
- 2003-11-07 US US10/704,260 patent/US6933807B2/en not_active Expired - Lifetime
- 2003-11-07 CN CN200310114828A patent/CN100578931C/zh not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118141B (zh) * | 2009-12-31 | 2014-08-13 | 财团法人工业技术研究院 | 共振器、弹性波传输元件及其制造方法 |
| CN102291095A (zh) * | 2011-04-27 | 2011-12-21 | 庞慰 | 复合体声波谐振器 |
| CN107182018B (zh) * | 2017-06-13 | 2019-10-11 | 山西宇翔信息技术有限公司 | 一种声音传感器 |
| CN112912953A (zh) * | 2018-10-19 | 2021-06-04 | 富士胶片株式会社 | 隔音系统 |
| CN112912953B (zh) * | 2018-10-19 | 2023-11-10 | 富士胶片株式会社 | 隔音系统 |
| CN113169721A (zh) * | 2018-10-31 | 2021-07-23 | 谐振公司 | 固态装配型横向激励的薄膜体声波谐振器 |
| CN112787615A (zh) * | 2019-11-06 | 2021-05-11 | 三星电机株式会社 | 体声波谐振器 |
| CN111628747A (zh) * | 2020-04-26 | 2020-09-04 | 深圳市信维通信股份有限公司 | 一种滤波装置、一种射频前端装置及一种无线通信装置 |
| CN111628747B (zh) * | 2020-04-26 | 2023-01-17 | 深圳市信维通信股份有限公司 | 一种滤波装置、一种射频前端装置及一种无线通信装置 |
| US11606080B2 (en) | 2020-04-26 | 2023-03-14 | Shenzhen Sunway Communication Co., Ltd. | Filter device, RF front-end device and wireless communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1418671A2 (de) | 2004-05-12 |
| US6933807B2 (en) | 2005-08-23 |
| CN100578931C (zh) | 2010-01-06 |
| DE10262056A1 (de) | 2004-11-04 |
| DE10262056B4 (de) | 2008-08-28 |
| DE10251876A1 (de) | 2004-05-19 |
| TW200509525A (en) | 2005-03-01 |
| JP2004159339A (ja) | 2004-06-03 |
| US20040140869A1 (en) | 2004-07-22 |
| DE10251876B4 (de) | 2008-08-21 |
| KR20040041029A (ko) | 2004-05-13 |
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