KR101972728B1 - 접합체 및 탄성파 소자 - Google Patents
접합체 및 탄성파 소자 Download PDFInfo
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- KR101972728B1 KR101972728B1 KR1020187024235A KR20187024235A KR101972728B1 KR 101972728 B1 KR101972728 B1 KR 101972728B1 KR 1020187024235 A KR1020187024235 A KR 1020187024235A KR 20187024235 A KR20187024235 A KR 20187024235A KR 101972728 B1 KR101972728 B1 KR 101972728B1
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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
- H03H9/02535—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
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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
- H03H9/02535—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
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- 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
- H03H3/08—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 resonators or networks using surface acoustic waves
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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
- H03H9/02031—Characteristics of piezoelectric layers, e.g. cutting angles consisting of ceramic
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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
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02834—Means for compensation or elimination of undesirable effects of temperature influence
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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
- H03H9/05—Holders or supports
- H03H9/058—Holders or supports for surface acoustic wave devices
- H03H9/0585—Holders or supports for surface acoustic wave devices consisting of an adhesive layer
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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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
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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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14538—Formation
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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
- H03H9/15—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
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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
- H03H9/25—Constructional features of resonators using surface acoustic waves
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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
- H10N30/07—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base
- H10N30/072—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by laminating or bonding of piezoelectric or electrostrictive bodies
- H10N30/073—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by laminating or bonding of piezoelectric or electrostrictive bodies by fusion of metals or by adhesives
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
접합체(5)는, 지지 기판(1), 압전성 단결정 기판(4), 및 지지 기판과 압전성 단결정 기판 사이에 형성된 접합층(2A)을 구비한다. 접합층(2A)이 Si(1-x)Ox(0.008≤x≤0.408)의 조성을 갖는다.
Description
도 2의 (a)는 압전성 단결정 기판(4)과 지지 기판(1)을 접합한 상태를 도시하고, 도 2의 (b)는 압전성 단결정 기판(4A)을 가공에 의해 얇게 한 상태를 도시하며, 도 2의 (c)는 압전성 단결정 기판(4A) 상에 전극(6)을 설치한 상태를 도시한다.
도 3의 (a)는 압전성 단결정 기판(4)의 표면(4a)에 접합층(2)을 형성한 상태를 도시하고, 도 3의 (b)는 접합층(2A)의 표면(2b)을 중성화 빔(A)에 의해 활성화한 상태를 도시하며, 도 3의 (c)는 지지 기판(1)의 표면(1a)을 중성화 빔(A)에 의해 활성화한 상태를 도시한다.
Claims (13)
- 다결정 세라믹 재료 또는 단결정 재료로 이루어지는 지지 기판,
압전성 단결정 기판, 및
상기 지지 기판과 상기 압전성 단결정 기판 사이에 형성된 접합층
을 구비하고, 상기 접합층이 Si(1-x)Ox(0.008≤x≤0.408)의 조성을 갖는 것을 특징으로 하는 접합체. - 제1항에 있어서, 상기 접합층의 전기 저항률이 4.9×103 Ω·㎝ 이상인 것을 특징으로 하는 접합체.
- 제1항 또는 제2항에 있어서, 상기 접합층의 표면과 상기 압전성 단결정 기판의 표면이 직접 접합되어 있는 것을 특징으로 하는 접합체.
- 제1항 또는 제2항에 있어서, 상기 지지 기판의 표면과 상기 접합층이 직접 접합되어 있는 것을 특징으로 하는 접합체.
- 제1항 또는 제2항에 있어서, 상기 지지 기판이, 실리콘, 사파이어, 멀라이트, 코디어라이트, 투광성 알루미나 및 사이알론으로 이루어지는 군에서 선택된 재질로 이루어지는 것을 특징으로 하는 접합체.
- 제1항 또는 제2항에 있어서, 상기 압전성 단결정 기판이, 니오브산리튬, 탄탈산리튬 또는 니오브산리튬-탄탈산리튬 고용체로 이루어지는 것을 특징으로 하는 접합체.
- 제1항 또는 제2항에 기재된 접합체, 및 상기 압전성 단결정 기판 상에 설치된 전극을 구비하는 것을 특징으로 하는 탄성파 소자.
- 제3항에 있어서, 상기 지지 기판이, 실리콘, 사파이어, 멀라이트, 코디어라이트, 투광성 알루미나 및 사이알론으로 이루어지는 군에서 선택된 재질로 이루어지는 것을 특징으로 하는 접합체.
- 제4항에 있어서, 상기 지지 기판이, 실리콘, 사파이어, 멀라이트, 코디어라이트, 투광성 알루미나 및 사이알론으로 이루어지는 군에서 선택된 재질로 이루어지는 것을 특징으로 하는 접합체.
- 제3항에 있어서, 상기 압전성 단결정 기판이, 니오브산리튬, 탄탈산리튬 또는 니오브산리튬-탄탈산리튬 고용체로 이루어지는 것을 특징으로 하는 접합체.
- 제4항에 있어서, 상기 압전성 단결정 기판이, 니오브산리튬, 탄탈산리튬 또는 니오브산리튬-탄탈산리튬 고용체로 이루어지는 것을 특징으로 하는 접합체.
- 제3항에 기재된 접합체, 및 상기 압전성 단결정 기판 상에 설치된 전극을 구비하는 것을 특징으로 하는 탄성파 소자.
- 제4항에 기재된 접합체, 및 상기 압전성 단결정 기판 상에 설치된 전극을 구비하는 것을 특징으로 하는 탄성파 소자.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017070219 | 2017-03-31 | ||
| JPJP-P-2017-070219 | 2017-03-31 | ||
| PCT/JP2018/011256 WO2018180827A1 (ja) | 2017-03-31 | 2018-03-22 | 接合体および弾性波素子 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20180132613A KR20180132613A (ko) | 2018-12-12 |
| KR101972728B1 true KR101972728B1 (ko) | 2019-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020187024235A Active KR101972728B1 (ko) | 2017-03-31 | 2018-03-22 | 접합체 및 탄성파 소자 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10284169B2 (ko) |
| JP (1) | JP6375471B1 (ko) |
| KR (1) | KR101972728B1 (ko) |
| CN (1) | CN110463038B (ko) |
| DE (1) | DE112018000012B4 (ko) |
| TW (1) | TWI668958B (ko) |
| WO (1) | WO2018180827A1 (ko) |
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- 2018-03-22 DE DE112018000012.5T patent/DE112018000012B4/de active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| DE112018000012B4 (de) | 2019-11-07 |
| TW201840128A (zh) | 2018-11-01 |
| KR20180132613A (ko) | 2018-12-12 |
| WO2018180827A1 (ja) | 2018-10-04 |
| TWI668958B (zh) | 2019-08-11 |
| CN110463038A (zh) | 2019-11-15 |
| US10284169B2 (en) | 2019-05-07 |
| US20190007022A1 (en) | 2019-01-03 |
| CN110463038B (zh) | 2020-05-22 |
| JP6375471B1 (ja) | 2018-08-15 |
| DE112018000012T5 (de) | 2018-11-22 |
| JPWO2018180827A1 (ja) | 2019-04-04 |
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