KR100798981B1 - 가변 커패시터 및 그 제조 방법 - Google Patents
가변 커패시터 및 그 제조 방법 Download PDFInfo
- Publication number
- KR100798981B1 KR100798981B1 KR1020067018119A KR20067018119A KR100798981B1 KR 100798981 B1 KR100798981 B1 KR 100798981B1 KR 1020067018119 A KR1020067018119 A KR 1020067018119A KR 20067018119 A KR20067018119 A KR 20067018119A KR 100798981 B1 KR100798981 B1 KR 100798981B1
- Authority
- KR
- South Korea
- Prior art keywords
- electrode
- movable electrode
- actuator
- variable capacitor
- capacitor
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 131
- 238000004519 manufacturing process Methods 0.000 title description 28
- 239000000758 substrate Substances 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 24
- 230000008859 change Effects 0.000 description 18
- 230000008569 process Effects 0.000 description 14
- 238000005530 etching Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical compound [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000000708 deep reactive-ion etching Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002241 glass-ceramic Substances 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 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
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002115 bismuth titanate Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 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
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
- H01G5/01—Details
- H01G5/011—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
- H01G5/16—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of distance between electrodes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Micromachines (AREA)
Abstract
Description
Claims (11)
- 대향하는 전극이 이동가능한 가변 커패시터에 있어서, 기판과, 제1 전극부 및 제2 전극부를 가지는 가동 전극과, 상기 가동 전극을 구동하는 복수의 압전 액츄에이터를 구비하며, 상기 가동 전극이 대향해서 커패시터를 구성하고 있으며, 상기 가동 전극과 신호 패드를 도전 접속하고 있는 것을 특징으로 하는 가변 커패시터.
- 제1항에 있어서,상기 복수의 압전 액츄에이터 각각은, 구동 전극과, 그 구동 전극간에 설치된 압전 소자를 포함하고 있으며, 상기 구동 전극과 상기 가동 전극과는 별체(別體)인 것을 특징으로 하는 가변 커패시터.
- 제2항에 있어서,상기 가동 전극의 제1 전극부의 양측에 상기 압전 액츄에이터를 설치하고 있으며, 상기 제1 전극부와 상기 전압 액츄에이터의 구동 전극에 의해 CPW형 선로를 구성하고 있는 것을 특징으로 하는 가변 커패시터.
- 제1항 내지 제3항 중 어느 한 항에 있어서,상기 가동 전극의 어느 한쪽의 상기 제1 전극부와 상기 제2 전극부의 경계부 근방이 전기적으로 분리되어 있는 것을 특징으로 하는 가변 커패시터.
- 그 대향 방향이 이동가능한 가동 전극과, 그 가동 전극을 구동하는 복수의 압전 액츄에이터를 구비한 가변 커패시터에 있어서, 상기 가동전극간에 전압을 인가하는 전압인가수단을 구비하고 있으며, 상기 압전 액츄에이터의 구동에서 상기 가동 전극을 접근시킨 상태에서, 상기 전압인가수단에서 상기 가동 전극간에 전압을 인가하도록 구성하고 있는 것을 특징으로 하는 가변 커패시터.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020067018119A KR100798981B1 (ko) | 2006-09-06 | 2004-05-31 | 가변 커패시터 및 그 제조 방법 |
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KR1020067018119A KR100798981B1 (ko) | 2006-09-06 | 2004-05-31 | 가변 커패시터 및 그 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070022651A KR20070022651A (ko) | 2007-02-27 |
KR100798981B1 true KR100798981B1 (ko) | 2008-01-28 |
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KR1020067018119A KR100798981B1 (ko) | 2006-09-06 | 2004-05-31 | 가변 커패시터 및 그 제조 방법 |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005530159A (ja) * | 2002-06-17 | 2005-10-06 | ヴェーテーイー テクノロジーズ オサケユキチュア | モノリシックシリコン加速度センサー |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2005530159A (ja) * | 2002-06-17 | 2005-10-06 | ヴェーテーイー テクノロジーズ オサケユキチュア | モノリシックシリコン加速度センサー |
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KR20070022651A (ko) | 2007-02-27 |
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