KR20200024328A - 접합체 및 탄성파 소자 - Google Patents
접합체 및 탄성파 소자 Download PDFInfo
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- KR20200024328A KR20200024328A KR1020207004837A KR20207004837A KR20200024328A KR 20200024328 A KR20200024328 A KR 20200024328A KR 1020207004837 A KR1020207004837 A KR 1020207004837A KR 20207004837 A KR20207004837 A KR 20207004837A KR 20200024328 A KR20200024328 A KR 20200024328A
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- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 abstract description 9
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Images
Classifications
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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
-
- 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
-
- 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
- H03H9/02826—Means for compensation or elimination of undesirable effects of adherence
-
- H01L41/09—
-
- H01L41/187—
-
- H01L41/31—
-
- H01L41/337—
-
- 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
- H03H9/02—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
- H03H9/25—Constructional features of resonators using surface acoustic waves
-
- 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
-
- 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
-
- 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
- H10N30/08—Shaping or machining of piezoelectric or electrostrictive bodies
- H10N30/085—Shaping or machining of piezoelectric or electrostrictive bodies by machining
- H10N30/086—Shaping or machining of piezoelectric or electrostrictive bodies by machining by polishing or grinding
-
- 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
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
-
- 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
- H10N30/704—Piezoelectric or electrostrictive devices based on piezoelectric or electrostrictive films or coatings
- H10N30/706—Piezoelectric or electrostrictive devices based on piezoelectric or electrostrictive films or coatings characterised by the underlying bases, e.g. substrates
-
- 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
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/853—Ceramic compositions
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Description
도 2는 본 발명의 실시형태에 따른 접합체의 주요부를 나타내는 사진이다.
도 3은 도 2의 사진의 설명도이다.
도 4의 (a)는 압전성 재료층(2)의 표면(2c)을 중성화 빔(A)에 의해 활성화한 상태를 나타내고, (b)는 지지 기판(3)의 표면(3c)을 중성화 빔(A)에 의해 활성화한 상태를 나타낸다.
도 5의 (a)는 압전성 재료층(2)과 지지 기판(3)을 접합한 상태를 나타내고, (b)는 압전성 재료층(2A)을 가공에 의해 얇게 한 상태를 나타내고, (c)는 압전성 재료층(2A) 상에 전극(9)을 마련한 상태를 나타낸다.
Claims (7)
- 지지 기판 및 압전성 재료층을 구비하고 있는 접합체로서,
상기 지지 기판이 사이알론을 포함하고,
상기 압전성 재료층의 재질이 LiAO3이고(A는 니오븀 및 탄탈을 포함하는 군에서 선택된 1종 이상의 원소),
상기 지지 기판과 상기 압전성 재료층의 계면을 따라 존재하는 계면층 및 상기 계면층과 상기 지지 기판 사이에 존재하는 지지 기판측 중간층을 구비하고 있고, 상기 계면층 및 상기 지지 기판측 중간층이 각각, 니오븀 및 탄탈을 포함하는 군에서 선택된 1종 이상의 원소, 질소, 산소, 알루미늄 및 규소를 주성분으로 하고 있는 것을 특징으로 하는 접합체. - 제1항에 있어서, 상기 계면층에 있어서의 질소 비율이 상기 지지 기판측 중간층에 있어서의 질소 비율보다 높은 것을 특징으로 하는 접합체.
- 제1항 또는 제2항에 있어서, 상기 지지 기판에 있어서의 질소 비율을 100으로 하였을 때의 상기 계면층에 있어서의 질소 비율이 51 이상, 93 이하인 것을 특징으로 하는 접합체.
- 제3항에 있어서, 상기 지지 기판에 있어서의 질소 비율을 100으로 하였을 때의 상기 계면층에 있어서의 질소 비율이 60 이상, 84 이하인 것을 특징으로 하는 접합체.
- 제4항에 있어서, 상기 지지 기판에 있어서의 질소 비율을 100으로 하였을 때의 상기 계면층에 있어서의 질소 비율이 68 이상, 76 이하인 것을 특징으로 하는 접합체.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 지지 기판을 구성하는 사이알론의 조성이 Si6 - zAlzOzN8 -z(z는 0.5 이상, 4.0 이하)로 표시되는 것을 특징으로 하는 접합체.
- 제1항 내지 제6항 중 어느 하나의 청구항에 기재된 접합체 및 상기 압전성 재료층 상에 마련된 전극을 구비하고 있는 것을 특징으로 하는 탄성파 소자.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2017162241 | 2017-08-25 | ||
JPJP-P-2017-162241 | 2017-08-25 | ||
PCT/JP2018/030855 WO2019039475A1 (ja) | 2017-08-25 | 2018-08-21 | 接合体および弾性波素子 |
Publications (2)
Publication Number | Publication Date |
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KR20200024328A true KR20200024328A (ko) | 2020-03-06 |
KR102218935B1 KR102218935B1 (ko) | 2021-02-23 |
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Country Status (7)
Country | Link |
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US (1) | US10931256B2 (ko) |
JP (1) | JP6507326B1 (ko) |
KR (1) | KR102218935B1 (ko) |
CN (1) | CN110945786B (ko) |
DE (1) | DE112018003633B4 (ko) |
TW (1) | TWI699015B (ko) |
WO (1) | WO2019039475A1 (ko) |
Families Citing this family (2)
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DE112018005793B4 (de) * | 2017-12-28 | 2022-03-24 | Ngk Insulators, Ltd. | Verbundener Körper eines Substrats aus einem piezoelektrischen Material und eines Trägersubstrats |
CN115603693A (zh) * | 2021-07-08 | 2023-01-13 | 联华电子股份有限公司(Tw) | 表面声波元件及其制作方法 |
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US10931256B2 (en) | 2021-02-23 |
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JP6507326B1 (ja) | 2019-04-24 |
CN110945786B (zh) | 2021-02-19 |
TW201921743A (zh) | 2019-06-01 |
WO2019039475A1 (ja) | 2019-02-28 |
JPWO2019039475A1 (ja) | 2019-11-07 |
KR102218935B1 (ko) | 2021-02-23 |
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US20200195218A1 (en) | 2020-06-18 |
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