JP4433214B2 - 圧電素子の製造方法、および圧電素子 - Google Patents
圧電素子の製造方法、および圧電素子 Download PDFInfo
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- JP4433214B2 JP4433214B2 JP2007274651A JP2007274651A JP4433214B2 JP 4433214 B2 JP4433214 B2 JP 4433214B2 JP 2007274651 A JP2007274651 A JP 2007274651A JP 2007274651 A JP2007274651 A JP 2007274651A JP 4433214 B2 JP4433214 B2 JP 4433214B2
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- 238000000034 method Methods 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 229920000642 polymer Polymers 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 238000004528 spin coating Methods 0.000 claims description 8
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 229910052741 iridium Inorganic materials 0.000 claims description 5
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 3
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 3
- 229920006158 high molecular weight polymer Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 93
- 239000010936 titanium Substances 0.000 description 28
- 239000013078 crystal Substances 0.000 description 18
- 150000002902 organometallic compounds Chemical class 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 150000004703 alkoxides Chemical class 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 4
- -1 organic acid salt Chemical class 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- 150000003057 platinum Chemical class 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000004151 rapid thermal annealing Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000000992 sputter etching Methods 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 description 1
- 229940049676 bismuth hydroxide Drugs 0.000 description 1
- TZSXPYWRDWEXHG-UHFFFAOYSA-K bismuth;trihydroxide Chemical compound [OH-].[OH-].[OH-].[Bi+3] TZSXPYWRDWEXHG-UHFFFAOYSA-K 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- HHFAWKCIHAUFRX-UHFFFAOYSA-N ethoxide Chemical compound CC[O-] HHFAWKCIHAUFRX-UHFFFAOYSA-N 0.000 description 1
- 230000005621 ferroelectricity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
- H10N30/708—Intermediate layers, e.g. barrier, adhesion or growth control buffer layers
-
- 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
- H10N30/074—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
- H10N30/077—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 by liquid phase deposition
- H10N30/078—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 by liquid phase deposition by sol-gel deposition
-
- 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
- H10N30/074—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
-
- 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
- H10N30/8561—Bismuth-based oxides
-
- 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
-
- 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
- Y10T29/43—Electric condenser making
- Y10T29/435—Solid dielectric type
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Ceramic Engineering (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
ゾル・ゲル液は、複合金属化合物となる材料の構成金属をそれぞれ含んでなる有機金属化合物、あるいはその部分加水分解物および/または重縮合物を各金属が所望のモル比となるように混合され、さらにアルコールなどの有機溶媒を用いてこれらを溶解または分散させることにより調製することができる。有機金属化合物は、溶液状態で安定なものを用いることが好ましい。
本発明に係る圧電素子の製造方法は、基体の上に下部電極を形成する工程と、前記下部電極の上に層状ペロブスカイト構造を有するシード層を形成する工程と、前記シード層の上にBi4Ti3O12−BaBi4Ti4O15からなる圧電体層を形成する工程と、前記圧電体層の上に上部電極を形成する工程と、を含む。
本実施形態に係る圧電素子は、下部電極層と、前記下部電極層の上に形成され、基本構造が一般式Bi1−xPrxTi3O12(式中のxは0.1〜0.7の数である。)で表されるシード層と、前記シード層の上に形成されたBi4Ti3O12−BaBi4Ti4O15からなる圧電体層と、前記圧電体層の上に形成された上部電極層と、を備えている。
Claims (8)
- 基体の上に下部電極層を形成する工程と、
前記下部電極層の上に、a/b軸またはa軸に配向させた一般式Bi 1−x Pr x Ti 3 O 12 (式中のxは0.1〜0.7の数である。)で表される層状ペロブスカイト構造を有するシード層を形成する工程と、
前記シード層の上にBi4Ti3O12−BaBi4Ti4O15からなる圧電体層を形成する工程と、
前記圧電体層の上に上部電極層を形成する工程と、
を含む、圧電素子の製造方法。 - 請求項1において、
前記圧電体層は、ゾル・ゲル液をスピンコート法または浸漬法を用いることにより形成された、圧電素子の製造方法。 - 請求項2において、
前記ゾル・ゲル液は、ポリビニルピロリドン、ポリアクリル酸、ポリエチレングリコール、およびポリビニルアルコールから選ばれる少なくとも1種の高分子ポリマーを含む、圧電素子の製造方法。 - 請求項3において、
前記高分子ポリマーの重量平均分子量は、300,000〜1,500,000である、圧電素子の製造方法。 - 請求項3または4において、
前記ゾル・ゲル液は、前記高分子ポリマーを0.5〜5重量%含有する、圧電素子の製造方法。 - 下部電極層と、
前記下部電極層の上に形成され、a/b軸またはa軸に配向させた一般式Bi1−xPrxTi3O12(式中のxは0.1〜0.7の数である。)で表されるシード層と、
前記シード層の上に形成されたBi4Ti3O12−BaBi4Ti4O15からなる圧電体層と、
前記圧電体層の上に形成された上部電極層と、
を備えた、圧電素子。 - 請求項6において、
前記下部電極層は、イリジウムからなる、圧電素子。 - 請求項6または7において、
前記上部電極層は、白金からなる、圧電素子。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007274651A JP4433214B2 (ja) | 2007-10-23 | 2007-10-23 | 圧電素子の製造方法、および圧電素子 |
US12/254,921 US7872403B2 (en) | 2007-10-23 | 2008-10-21 | Method for manufacturing piezoelectric film element, and piezoelectric film element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007274651A JP4433214B2 (ja) | 2007-10-23 | 2007-10-23 | 圧電素子の製造方法、および圧電素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009105175A JP2009105175A (ja) | 2009-05-14 |
JP4433214B2 true JP4433214B2 (ja) | 2010-03-17 |
Family
ID=40561992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007274651A Expired - Fee Related JP4433214B2 (ja) | 2007-10-23 | 2007-10-23 | 圧電素子の製造方法、および圧電素子 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7872403B2 (ja) |
JP (1) | JP4433214B2 (ja) |
Families Citing this family (2)
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JP5472596B2 (ja) * | 2009-08-27 | 2014-04-16 | セイコーエプソン株式会社 | 液体噴射ヘッド及びそれを用いた液体噴射装置 |
JP5526945B2 (ja) * | 2010-03-31 | 2014-06-18 | Tdk株式会社 | 圧電組成物、圧電磁器、振動子、及び超音波モータ |
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JP3363301B2 (ja) | 1995-03-08 | 2003-01-08 | シャープ株式会社 | 強誘電体薄膜被覆基板及びその製造方法及び強誘電体薄膜被覆基板によって構成された不揮発性メモリ |
CN1181217C (zh) * | 1997-11-21 | 2004-12-22 | 三星电子株式会社 | 使用籽晶层形成pzt薄膜的方法 |
JP4111032B2 (ja) | 2003-03-26 | 2008-07-02 | セイコーエプソン株式会社 | 強誘電体素子の製造方法、表面弾性波素子、インクジェットヘッド、インクジェットプリンター、周波数フィルタ、発振器、電子回路、及び電子機器 |
JP4600650B2 (ja) | 2003-11-05 | 2010-12-15 | セイコーエプソン株式会社 | 圧電体膜、圧電素子、圧電アクチュエーター、圧電ポンプ、インクジェット式記録ヘッド、インクジェットプリンター、表面弾性波素子、薄膜圧電共振子、周波数フィルタ、発振器、電子回路、および電子機器 |
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JP2005294452A (ja) * | 2004-03-31 | 2005-10-20 | Fujitsu Ltd | 薄膜積層体、その薄膜積層体を用いたアクチュエータ素子、フィルター素子、強誘電体メモリ、および光偏向素子 |
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US7494601B2 (en) * | 2006-02-28 | 2009-02-24 | The Hong Kong Polytechnic University | Piezoelectric ceramic composition and the method for preparing the same |
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JP5061990B2 (ja) * | 2008-03-27 | 2012-10-31 | セイコーエプソン株式会社 | 液体噴射ヘッド及び液体噴射装置並びにアクチュエータ |
JP4665025B2 (ja) * | 2008-12-16 | 2011-04-06 | Tdk株式会社 | 圧電素子の製造方法 |
JP2010143788A (ja) * | 2008-12-18 | 2010-07-01 | Canon Inc | 酸窒化物圧電材料及びその製造方法 |
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US20090100656A1 (en) | 2009-04-23 |
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