JP4743258B2 - 圧電デバイスの製造方法 - Google Patents
圧電デバイスの製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 51
- 238000000034 method Methods 0.000 title claims description 24
- 239000000758 substrate Substances 0.000 claims description 110
- 239000010409 thin film Substances 0.000 claims description 62
- 239000010410 layer Substances 0.000 claims description 47
- 238000010438 heat treatment Methods 0.000 claims description 45
- 238000005468 ion implantation Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 150000002500 ions Chemical class 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 4
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 description 31
- 230000006866 deterioration Effects 0.000 description 10
- 239000010408 film Substances 0.000 description 8
- 238000005530 etching Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000002178 crystalline material Substances 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 235000019687 Lamb Nutrition 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910012463 LiTaO3 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000005616 pyroelectricity Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- 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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- H10N30/074—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by depositing piezoelectric or electrostrictive layers, e.g. aerosol or screen printing
- H10N30/079—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by depositing piezoelectric or electrostrictive layers, e.g. aerosol or screen printing using intermediate layers, e.g. for growth control
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- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
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- 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
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
- H10N30/2047—Membrane type
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- H10N30/308—Membrane type
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
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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
- H03H3/02—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
- H03H2003/021—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 air-gap 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
- H03H2003/022—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 cantilever type
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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
- H03H3/02—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
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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
- H03H3/02—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
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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
- H10N30/06—Forming electrodes or interconnections, e.g. leads or terminals
- H10N30/063—Forming interconnections, e.g. connection electrodes of multilayered piezoelectric or electrostrictive parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49005—Acoustic transducer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49126—Assembling bases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49147—Assembling terminal to base
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49155—Manufacturing circuit on or in base
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- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
Y.Osugi etal.:"Single crystal FBAR with LiNO3 and LiTaO3",2007 IEEE MTT-S International Microwave Symposium, pp.873-876
図2〜図4は、図1に示す製造フローで形成される薄膜型圧電デバイスの製造過程を模式的に示す図である。
次に、図3(B)に示すように、上面電極パターンが形成された圧電薄膜10の表面にレジスト膜70を形成する(図1:S107)。そして、フォトリソグラフィ技術を用いて、図3(C)に示すように、犠牲層40A,40Bを除去するためのエッチング窓71,72をレジスト膜70に形成する(図1:S108)。
Claims (7)
- 圧電基板にイオンを注入することで、イオン注入層を形成する工程と、
イオン注入層が形成された圧電基板を加熱することにより前記圧電基板から圧電薄膜を剥離形成する工程を有する、圧電デバイスの製造方法であって、
前記圧電基板はタンタル酸リチウムを材料とし、
前記圧電薄膜を剥離形成する工程は、
前記イオン注入層が形成された圧電基板を、1×10-6Pa〜0.1Paの減圧雰囲気下において加熱する圧電デバイスの製造方法。 - 前記イオン注入層が形成された圧電基板に対して、前記イオン注入層により前記圧電薄膜が形成される側に支持体を形成する工程を備え、
前記圧電薄膜を剥離形成する工程は、
前記支持体が形成された圧電基板を、前記減圧雰囲気下で、且つ該減圧雰囲気の圧力に応じた加熱温度で加熱する、請求項1に記載の圧電デバイスの製造方法。 - 前記圧電基板と前記支持体とは線膨張係数が異なる、請求項2に記載の圧電デバイスの製造方法。
- 前記圧電基板と前記支持体とは、前記圧電基板の表面に接着層を形成し、該接着層と前記支持体との接合面を清浄化接合によって直接接合してなる、請求項3に記載の圧電デバイスの製造方法。
- 前記支持体は、前記圧電基板に対して熱伝導率が良い材料によって形成される、請求項2〜請求項4のいずれかに記載の圧電デバイスの製造方法。
- 前記圧電基板を前記支持体に接合する工程の前に、
前記圧電基板の前記圧電薄膜側表面および前記支持体の前記圧電基板を接合する表面の少なくとも一方に、電極形成を行う工程を有する、請求項2〜請求項5のいずれかに記載の圧電デバイスの製造方法。 - 前記減圧雰囲気の加熱温度は、該加熱温度によって前記電極を形成する金属が前記圧電基板に殆ど拡散しないように設定されている、請求項1〜請求項6のいずれかに記載の圧電デバイスの製造方法。
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JP2008282567A JP4743258B2 (ja) | 2008-10-31 | 2008-10-31 | 圧電デバイスの製造方法 |
EP20090173491 EP2182561B1 (en) | 2008-10-31 | 2009-10-20 | Method for manufacturing electronic device and method for manufacturing piezoelectric device |
US12/608,115 US9240543B2 (en) | 2008-10-31 | 2009-10-29 | Method for manufacturing piezoelectric device |
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JP5182379B2 (ja) * | 2009-01-29 | 2013-04-17 | 株式会社村田製作所 | 複合基板の製造方法 |
JP5152410B2 (ja) * | 2009-06-09 | 2013-02-27 | 株式会社村田製作所 | 圧電デバイスの製造方法 |
JP5429200B2 (ja) * | 2010-05-17 | 2014-02-26 | 株式会社村田製作所 | 複合圧電基板の製造方法および圧電デバイス |
WO2012043615A1 (ja) * | 2010-09-28 | 2012-04-05 | 株式会社村田製作所 | 圧電デバイスの製造方法 |
JP5522263B2 (ja) | 2010-09-28 | 2014-06-18 | 株式会社村田製作所 | 圧電デバイス、圧電デバイスの製造方法 |
FR2968861B1 (fr) * | 2010-12-10 | 2013-09-27 | Commissariat Energie Atomique | Procédé de fabrication d'un résonateur a ondes acoustiques comprenant une membrane suspendue |
JP5796316B2 (ja) * | 2011-03-22 | 2015-10-21 | 株式会社村田製作所 | 圧電デバイスの製造方法 |
JP5835329B2 (ja) * | 2011-07-29 | 2015-12-24 | 株式会社村田製作所 | 圧電デバイス、および、圧電デバイスの製造方法 |
DE112013006227T5 (de) | 2012-12-26 | 2015-10-01 | Ngk Insulators, Ltd. | Verbundsubstrat, Herstellungsverfahren dafür und akustische-Wellen-Vorrichtung |
WO2016098526A1 (ja) * | 2014-12-18 | 2016-06-23 | 株式会社村田製作所 | 弾性波装置及びその製造方法 |
JP6497435B2 (ja) * | 2015-03-13 | 2019-04-10 | 株式会社村田製作所 | 弾性波装置及びその製造方法 |
JP6396854B2 (ja) * | 2015-06-02 | 2018-09-26 | 信越化学工業株式会社 | 酸化物単結晶薄膜を備えた複合ウェーハの製造方法 |
JP6396852B2 (ja) | 2015-06-02 | 2018-09-26 | 信越化学工業株式会社 | 酸化物単結晶薄膜を備えた複合ウェーハの製造方法 |
JP6396853B2 (ja) * | 2015-06-02 | 2018-09-26 | 信越化学工業株式会社 | 酸化物単結晶薄膜を備えた複合ウェーハの製造方法 |
JP6454606B2 (ja) | 2015-06-02 | 2019-01-16 | 信越化学工業株式会社 | 酸化物単結晶薄膜を備えた複合ウェーハの製造方法 |
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