JP5727240B2 - 圧電アクチュエータの製造方法 - Google Patents
圧電アクチュエータの製造方法 Download PDFInfo
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- JP5727240B2 JP5727240B2 JP2011009624A JP2011009624A JP5727240B2 JP 5727240 B2 JP5727240 B2 JP 5727240B2 JP 2011009624 A JP2011009624 A JP 2011009624A JP 2011009624 A JP2011009624 A JP 2011009624A JP 5727240 B2 JP5727240 B2 JP 5727240B2
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- adrip
- layer
- electrode layer
- piezoelectric actuator
- lower electrode
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- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 19
- 238000001704 evaporation Methods 0.000 claims description 38
- 230000008020 evaporation Effects 0.000 claims description 37
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 229910020684 PbZr Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000010891 electric arc Methods 0.000 claims description 5
- 238000007733 ion plating Methods 0.000 claims description 3
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 28
- 230000015556 catabolic process Effects 0.000 description 16
- 239000007789 gas Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 229910052814 silicon oxide Inorganic materials 0.000 description 11
- 239000000758 substrate Substances 0.000 description 10
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 8
- 238000004544 sputter deposition Methods 0.000 description 8
- 238000007781 pre-processing Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 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 2
- 239000000463 material Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910004121 SrRuO Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- Crystals, And After-Treatments Of Crystals (AREA)
- Physical Vapour Deposition (AREA)
Description
Pb蒸発量/Ti蒸発量≦1.5
となるように制御する。
2:酸化シリコン層
3:Ti密着層
4:Pt下部電極層
5:PZT圧電体層
6:Pt上部電極層
901:真空チャンバ
902−1:Pb蒸発源
902−2:Zr蒸発源
902−3:Ti蒸発源
902−1S、902−2S、902−3S:蒸気量センサ
903:ヒータ付ウェハ回転ホールダ
903a:ウェハ
904:圧力勾配型プラズマガン
905:O2ガス導入口
906:排気口
Claims (3)
- Pt下部電極層が形成されたウェハを酸素雰囲気で加熱して前記Pt下部電極層を(111)面により多く配向させる酸素雰囲気下加熱処理工程と、
前記酸素雰囲気下加熱処理工程後にアーク放電イオンプレーティング法によってPb蒸発量、Zr蒸発量及びTi蒸発量を制御して前記Pt下部電極層上にPbZrxTi1-xO3よりなるPZT圧電体層を形成する圧電体層形成工程と
を具備する圧電アクチュエータの製造方法。 - 前記圧電体層形成工程におけるPbZrxTi1-xO3の組成比Pb/(Zr+Ti)を1.2以下とした請求項1に記載の圧電アクチュエータの製造方法。
- さらに、前記酸素雰囲気下加熱処理工程と前記圧電体層形成工程との間に、前記ウェハを真空雰囲気で加熱する真空雰囲気下加熱処理工程を具備する請求項1に記載の圧電アクチュエータの製造方法。
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JP2011009624A JP5727240B2 (ja) | 2011-01-20 | 2011-01-20 | 圧電アクチュエータの製造方法 |
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JP2011009624A JP5727240B2 (ja) | 2011-01-20 | 2011-01-20 | 圧電アクチュエータの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012149312A JP2012149312A (ja) | 2012-08-09 |
JP5727240B2 true JP5727240B2 (ja) | 2015-06-03 |
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JP2011009624A Active JP5727240B2 (ja) | 2011-01-20 | 2011-01-20 | 圧電アクチュエータの製造方法 |
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JP (1) | JP5727240B2 (ja) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5403501B2 (ja) * | 2008-06-13 | 2014-01-29 | スタンレー電気株式会社 | 強誘電体膜の製造方法 |
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