JP4316632B2 - 弾性表面波装置及び分波器 - Google Patents
弾性表面波装置及び分波器 Download PDFInfo
- Publication number
- JP4316632B2 JP4316632B2 JP2007107329A JP2007107329A JP4316632B2 JP 4316632 B2 JP4316632 B2 JP 4316632B2 JP 2007107329 A JP2007107329 A JP 2007107329A JP 2007107329 A JP2007107329 A JP 2007107329A JP 4316632 B2 JP4316632 B2 JP 4316632B2
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- axis
- filter
- acoustic wave
- surface acoustic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010897 surface acoustic wave method Methods 0.000 title claims description 31
- 239000000758 substrate Substances 0.000 claims description 103
- 229910052594 sapphire Inorganic materials 0.000 claims description 24
- 239000010980 sapphire Substances 0.000 claims description 24
- 230000004044 response Effects 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 11
- 238000010606 normalization Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Images
Classifications
-
- 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
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
- H03H9/02559—Characteristics of substrate, e.g. cutting angles of lithium niobate or lithium-tantalate substrates
-
- 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
- H03H9/64—Filters using surface acoustic waves
-
- 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
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
- H03H9/02574—Characteristics of substrate, e.g. cutting angles of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
- H03H9/72—Networks using surface acoustic waves
-
- 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
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02866—Means for compensation or elimination of undesirable effects of bulk wave excitation and reflections
-
- 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
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/6483—Ladder SAW filters
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
12 アモルファス領域
15 LT/サファイア基板
20 LT基板
21 主面
22 電極パターン
28 ラダー型フィルタ
30 第1フィルタ
40 第2フィルタ
50 分波器
Claims (7)
- 支持基板と、
前記支持基板上に接合され、主面の法線方向がX軸を中心にY軸からZ軸方向に43°〜53°回転した方向であるLiTaO3圧電基板と、
前記圧電基板上に形成された電極パターンと、を具備し、
前記支持基板と前記圧電基板との接合界面は平坦であり、
前記電極パターンはIDTであり、
前記支持基板はサファイア基板であることを特徴とする弾性表面波装置。 - 前記圧電基板は、主面の法線方向がX軸を中心にY軸からZ軸方向に43°〜52°回転した方向であることを特徴とする請求項1記載の弾性表面波装置。
- 前記圧電基板は、主面の法線方向がX軸を中心にY軸からZ軸方向に46°〜50°回転した方向であることを特徴とする請求項1記載の弾性表面波装置。
- 前記圧電基板は、主面の法線方向がX軸を中心にY軸からZ軸方向に43°〜48°回転した方向であることを特徴とする請求項1記載の弾性表面波装置。
- 前記支持基板と前記圧電基板との接合界面にアモルファス接合領域を有していることを特徴とする請求項1から4のいずれか一項記載の弾性表面波装置。
- 請求項1から5のいずれか一項記載の前記弾性表面波装置から構成されることを特徴とするフィルタ。
- 共通端子と、
前記共通端子にそれぞれ接続された第1フィルタ及び第2フィルタを具備し、
前記第1フィルタ及び前記第2フィルタの少なくとも一方は請求項6に記載のフィルタであることを特徴とする分波器。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007107329A JP4316632B2 (ja) | 2007-04-16 | 2007-04-16 | 弾性表面波装置及び分波器 |
| KR1020080033461A KR100907393B1 (ko) | 2007-04-16 | 2008-04-11 | 탄성 표면파 장치 및 분파기 |
| EP08103546.1A EP1983647B1 (en) | 2007-04-16 | 2008-04-15 | Surface acoustic wave device and duplexer |
| TW097113594A TWI359563B (en) | 2007-04-16 | 2008-04-15 | Surface acoustic wave device and duplexer |
| US12/103,814 US7800464B2 (en) | 2007-04-16 | 2008-04-16 | Surface acoustic wave device and duplexer |
| CN2008100910779A CN101291142B (zh) | 2007-04-16 | 2008-04-16 | 表面声波器件和双工器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007107329A JP4316632B2 (ja) | 2007-04-16 | 2007-04-16 | 弾性表面波装置及び分波器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008270904A JP2008270904A (ja) | 2008-11-06 |
| JP4316632B2 true JP4316632B2 (ja) | 2009-08-19 |
Family
ID=39543470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007107329A Active JP4316632B2 (ja) | 2007-04-16 | 2007-04-16 | 弾性表面波装置及び分波器 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7800464B2 (ja) |
| EP (1) | EP1983647B1 (ja) |
| JP (1) | JP4316632B2 (ja) |
| KR (1) | KR100907393B1 (ja) |
| CN (1) | CN101291142B (ja) |
| TW (1) | TWI359563B (ja) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010138838A1 (en) * | 2009-05-28 | 2010-12-02 | Northrop Grumman Systems Corporation | Lateral over-moded bulk acoustic resonators |
| JP5678486B2 (ja) * | 2010-06-17 | 2015-03-04 | セイコーエプソン株式会社 | 弾性表面波共振子、弾性表面波発振器および電子機器 |
| JP5588836B2 (ja) * | 2010-11-12 | 2014-09-10 | 太陽誘電株式会社 | 弾性波デバイス |
| JP5976096B2 (ja) * | 2012-03-02 | 2016-08-23 | 太陽誘電株式会社 | 弾性波フィルタ |
| EP3226286B1 (en) * | 2014-11-28 | 2019-08-28 | Kyocera Corporation | Saw device and method for manufacturing saw device |
| JP6397352B2 (ja) * | 2015-02-19 | 2018-09-26 | 太陽誘電株式会社 | 弾性波デバイス |
| US10381998B2 (en) | 2015-07-28 | 2019-08-13 | Qorvo Us, Inc. | Methods for fabrication of bonded wafers and surface acoustic wave devices using same |
| JP6494462B2 (ja) * | 2015-07-29 | 2019-04-03 | 太陽誘電株式会社 | 弾性波デバイスおよびモジュール |
| US10090822B2 (en) * | 2015-08-25 | 2018-10-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Surface acoustic wave (SAW) resonator |
| US10523178B2 (en) | 2015-08-25 | 2019-12-31 | Avago Technologies International Sales Pte. Limited | Surface acoustic wave (SAW) resonator |
| US10469056B2 (en) | 2015-08-25 | 2019-11-05 | Avago Technologies International Sales Pte. Limited | Acoustic filters integrated into single die |
| US10177734B2 (en) | 2015-08-25 | 2019-01-08 | Avago Technologies International Sales Pte. Limited | Surface acoustic wave (SAW) resonator |
| US10536133B2 (en) | 2016-04-22 | 2020-01-14 | Avago Technologies International Sales Pte. Limited | Composite surface acoustic wave (SAW) device with absorbing layer for suppression of spurious responses |
| US10020796B2 (en) * | 2015-08-25 | 2018-07-10 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Surface acoustic wave (SAW) resonator |
| US9991870B2 (en) | 2015-08-25 | 2018-06-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Surface acoustic wave (SAW) resonator |
| US20180337657A1 (en) * | 2015-09-25 | 2018-11-22 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic wave resonator having antiresonant cavity |
| US20180241374A1 (en) * | 2015-09-25 | 2018-08-23 | Avago Technologies General Ip (Singapore) Pte. Ltd | Acoustic wave resonator having antiresonant cavity |
| US9369111B1 (en) | 2015-10-28 | 2016-06-14 | Resonant Inc. | Fabrication of surface acoustic wave filters having plate modes |
| JP6635794B2 (ja) * | 2016-01-12 | 2020-01-29 | 太陽誘電株式会社 | 弾性波デバイス及びその製造方法 |
| US10128814B2 (en) | 2016-01-28 | 2018-11-13 | Qorvo Us, Inc. | Guided surface acoustic wave device providing spurious mode rejection |
| US10177735B2 (en) | 2016-02-29 | 2019-01-08 | Avago Technologies International Sales Pte. Limited | Surface acoustic wave (SAW) resonator |
| CN109690943B (zh) | 2016-09-20 | 2023-10-13 | 日本碍子株式会社 | 复合基板及其制法以及电子器件 |
| JP6886264B2 (ja) * | 2016-09-21 | 2021-06-16 | 太陽誘電株式会社 | 弾性波デバイス並びに複合基板およびその製造方法 |
| US10536131B2 (en) | 2017-06-20 | 2020-01-14 | Skyworks Solutions, Inc. | Surface acoustic wave device with thermally conductive layer |
| US11206007B2 (en) | 2017-10-23 | 2021-12-21 | Qorvo Us, Inc. | Quartz orientation for guided SAW devices |
| FR3079667B1 (fr) * | 2018-03-28 | 2020-03-27 | Frec'n'sys | Dispositif d'onde acoustique de surface sur substrat composite |
| WO2019226461A1 (en) | 2018-05-21 | 2019-11-28 | Skyworks Solutions, Inc. | Multi-layer piezoelectric substrate with heat dissipation |
| EP3849081B1 (en) * | 2018-09-06 | 2023-08-16 | Kyocera Corporation | Composite substrate, piezoelectric element, and method for manufacturing composite substrate |
| US11171627B2 (en) | 2018-10-01 | 2021-11-09 | Qorvo Us, Inc. | Wave apodization for guided SAW resonators |
| WO2020209190A1 (ja) * | 2019-04-08 | 2020-10-15 | 株式会社村田製作所 | 弾性波装置及びマルチプレクサ |
| US12267062B2 (en) | 2020-06-17 | 2025-04-01 | Murata Manufacturing Co., Ltd. | Transversely-excited film bulk acoustic resonators with three-layer electrodes |
| US12143090B2 (en) | 2021-10-29 | 2024-11-12 | Qorvo Us, Inc. | Surface acoustic wave (SAW) structures with transverse mode suppression |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06164306A (ja) * | 1992-02-12 | 1994-06-10 | Kokusai Electric Co Ltd | 弾性表面波共振子 |
| US5446330A (en) * | 1993-03-15 | 1995-08-29 | Matsushita Electric Industrial Co., Ltd. | Surface acoustic wave device having a lamination structure |
| JPH09167936A (ja) | 1995-10-13 | 1997-06-24 | Fujitsu Ltd | 弾性表面波装置 |
| JP3945363B2 (ja) | 2001-10-12 | 2007-07-18 | 株式会社村田製作所 | 弾性表面波装置 |
| JP3979279B2 (ja) * | 2001-12-28 | 2007-09-19 | 株式会社村田製作所 | 弾性表面波装置 |
| US6946772B2 (en) * | 2002-05-14 | 2005-09-20 | Tdk Corporation | Saw element, saw device and branching filter |
| US7105980B2 (en) * | 2002-07-03 | 2006-09-12 | Sawtek, Inc. | Saw filter device and method employing normal temperature bonding for producing desirable filter production and performance characteristics |
| JP2004186868A (ja) | 2002-12-02 | 2004-07-02 | Fujitsu Media Device Kk | 弾性表面波素子、それを有する送信フィルタ及び受信フィルタ、並びにそれらを有するデュプレクサ |
| JP2004336503A (ja) * | 2003-05-09 | 2004-11-25 | Fujitsu Media Device Kk | 弾性表面波素子及びその製造方法 |
| JP3774782B2 (ja) * | 2003-05-14 | 2006-05-17 | 富士通メディアデバイス株式会社 | 弾性表面波素子の製造方法 |
| JP3950445B2 (ja) * | 2003-11-05 | 2007-08-01 | Tdk株式会社 | デュプレクサ |
| JP3929983B2 (ja) * | 2004-03-03 | 2007-06-13 | 富士通メディアデバイス株式会社 | 接合基板、弾性表面波素子および弾性表面波デバイス並びにその製造方法 |
| JP4587732B2 (ja) * | 2004-07-28 | 2010-11-24 | 京セラ株式会社 | 弾性表面波装置 |
| JP2006135447A (ja) * | 2004-11-02 | 2006-05-25 | Fujitsu Media Device Kk | 分波器 |
| JP4657002B2 (ja) * | 2005-05-12 | 2011-03-23 | 信越化学工業株式会社 | 複合圧電基板 |
| JP2007028538A (ja) * | 2005-07-21 | 2007-02-01 | Tdk Corp | 弾性表面波装置 |
| JP4264435B2 (ja) | 2005-10-17 | 2009-05-20 | ピアス販売株式会社 | デッキプレート接合用ドリルねじ |
| JP4686342B2 (ja) * | 2005-11-30 | 2011-05-25 | 株式会社日立メディアエレクトロニクス | 弾性表面波装置及びこれを搭載した通信端末。 |
| US7911111B2 (en) * | 2008-04-15 | 2011-03-22 | Ngk Insulators, Ltd. | Surface acoustic wave devices |
-
2007
- 2007-04-16 JP JP2007107329A patent/JP4316632B2/ja active Active
-
2008
- 2008-04-11 KR KR1020080033461A patent/KR100907393B1/ko active Active
- 2008-04-15 TW TW097113594A patent/TWI359563B/zh not_active IP Right Cessation
- 2008-04-15 EP EP08103546.1A patent/EP1983647B1/en not_active Ceased
- 2008-04-16 CN CN2008100910779A patent/CN101291142B/zh active Active
- 2008-04-16 US US12/103,814 patent/US7800464B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US7800464B2 (en) | 2010-09-21 |
| EP1983647A3 (en) | 2012-11-28 |
| TWI359563B (en) | 2012-03-01 |
| US20080252394A1 (en) | 2008-10-16 |
| TW200849816A (en) | 2008-12-16 |
| CN101291142A (zh) | 2008-10-22 |
| EP1983647B1 (en) | 2018-12-19 |
| JP2008270904A (ja) | 2008-11-06 |
| EP1983647A2 (en) | 2008-10-22 |
| KR20080093370A (ko) | 2008-10-21 |
| CN101291142B (zh) | 2010-09-08 |
| KR100907393B1 (ko) | 2009-07-10 |
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