JP2008541420A - 統合減結合コンデンサを有する容量性rf−mems装置 - Google Patents
統合減結合コンデンサを有する容量性rf−mems装置 Download PDFInfo
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- 239000003990 capacitor Substances 0.000 title abstract description 45
- 239000000758 substrate Substances 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 27
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
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- 230000004888 barrier function Effects 0.000 description 5
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- 238000000151 deposition Methods 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
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- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H59/00—Electrostatic relays; Electro-adhesion relays
- H01H59/0009—Electrostatic relays; Electro-adhesion relays making use of micromechanics
-
- 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
-
- 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
- H01G5/40—Structural combinations of variable capacitors with other electric elements not covered by this subclass, the structure mainly consisting of a capacitor, e.g. RC combinations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H59/00—Electrostatic relays; Electro-adhesion relays
- H01H59/0009—Electrostatic relays; Electro-adhesion relays making use of micromechanics
- H01H2059/0072—Electrostatic relays; Electro-adhesion relays making use of micromechanics with stoppers or protrusions for maintaining a gap, reducing the contact area or for preventing stiction between the movable and the fixed electrode in the attracted position
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Micromachines (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Atot=AMEMS+Afix=(cfix/cMEMS)1/2Afix+Afix=((cMEMS)1/2+(cfix)1/2)2Cc/(cMEMS
cfix)=((cMEMS/cfix)1/2+1)2AtotでCを伴わないもの。
同じDC電圧で、RF電極1での力がより一層小さく、それが通常、より一層低い電気容量密度を与える。時々でさえ、空隙6がRF-MEMS切替の閉じた状態において存在するままである。
RFの電圧によって誘導される力は、この力が電極1に配置されるので、大きな電気容量の変化を誘導することができる。
第1電極で、面において横たわる基板に固定されるものを提供する工程、
第2電極で、第2電極が基板に関して移動可能であるものを提供する工程、
作動性の電極で、第1及び第2の電極間で基板の面に実質垂直な方向において統合されるものを提供する工程。
異なる図において、同じ参照符号は同じか又は似た要素に言及する。
cc=1/(1/cdl+1/cd2)=l/(gd1/εd1+gd2/εd2)
RF-MEMS装置が開いた状態にあるとき、これが次の電気容量密度を見せる。
co=l/(gd1/εd1+gd2/εd2+g/ε0)
この状況が、図1において例証される状況を有する状況と比較され、すべての電極1、3、7が、等しい領域を持つものであるとき、本発明に従うRF-MEMS装置のために必要とされる合計の領域は、閉鎖したRFの場合において、Ccの電気容量は次のものによって与えられ得る。
Atot=[(cd1+cd2)/cdlcd2].Cc
cd1=cfix=150pF/mm2及びcd2=cMEMS=75pF/mm2の場合、領域Atotの0.2mm2が10pFの閉鎖した電気容量を製造するために必要である。したがって、因子で約2の空間減少は、図1のものと比較されるこの立体配置の使用によって達成され得る。実際、合計の空間減少はより一層多くでさえあり、それは、著しく少ない相互接続しか必要とせず、例として、MEMS装置及び減結合コンデンサ間の電気的接続のようなものだからである。
Claims (17)
- 容量性の高周波-微小電気機械システム(RF-MEMS)装置であって、面において横たわる基板に固定される第1電極、及び第1電極上に浮き、及び基板に関して移動可能な第2電極を備え、そこで更に、第1及び第2の電極間で基板の面に実質垂直な方向において統合される作動性の電極を備える、装置。
- 作動性の電極が、第1の誘電性層及び第2の誘電性層の間に埋められ、そのようにして積み重ねが形成される、請求項1に従う容量性RF-MEMS装置。
- 積み重ねが第1電極の頂部分上に位置される、請求項2に従う容量性RF-MEMS装置。
- 直流(DC)電圧(Vdc)が作動性の電極に適用され、及び高周波(RF)電圧(Vrf)が第1電極及び第2電極間で適用される、請求項3に従う容量性RF-MEMS装置。
- 第2電極が第1電極に向かって方向付けられる底部分を持ち、そこで、積み重ねが第2電極の底部分に位置される、請求項2に従う容量性RF-MEMS装置。
- 第2電極が第1電極に向かって方向付けられる底部分を持ち、そこで、第1の誘電性層が第1電極の頂部分上に位置され、及びそこで、作動性の電極が、第2の誘電性層の底部分に位置され、その第2の誘電性層が第2電極の底部分に配置される、請求項1に従う容量性RF-MEMS装置。
- 第2電極が第1電極に向かって方向付けられる底部分を持ち、そこで、作動性の電極が、第1の誘電性層の頂部分上に位置され、その第1の誘電性層が第1電極の頂部分上に配置され、及びそこで、第2の誘電性層が第2電極の底部分に位置される、請求項1に従う容量性RF-MEMS装置。
- 第1電極が第1の領域(面積)を持ち、第2電極が第2の領域を持ち、及び作動性の電極が第3の領域を持ち、第1、第2及び第3の領域が、基板の面に実質平行な方向において延び、及びそこで、第1、第2及び第3の領域が実質同じである、請求項1に従う容量性RF-MEMS装置。
- 第1電極が第1の領域を持ち、第2電極が第2の領域を持ち、及び作動性の電極が第3の領域を持ち、第1、第2及び第3の領域が、基板の面に実質平行な方向において延び、及びそこで、少なくとも1種の第1、第2及び第3の領域が他のものと異なる、請求項1に従う容量性RF-MEMS装置。
- 第1電極、作動性の電極及び第2電極が同じ物質を材料として形成される、請求項1に従う容量性RF-MEMS装置。
- 第1電極、作動性の電極及び第2電極が、アルミニウム又はアルミニウム銅合金、銅又は金を材料として形成される、請求項10に従う容量性RF-MEMS装置。
- 容量性のRF-MEMS装置を製造するにあたり、
面において横たわる基板に固定される第1電極を提供する工程、
第2電極で、基板に関して移動可能である第2電極を提供する工程、
第1及び第2の電極間で基板の面に実質垂直な方向において統合される作動性の電極を提供する工程
を備える、方法。 - 作動性の電極を提供する工程が、作動性の電極の積み重ねを、第1の誘電性層及び第2の誘電性層の間において提供する工程を含む、請求項12に従う方法。
- 積み重ねで、中継(リレー)又は作動性の電極を含み、それが第1の誘電性層及び第2の誘電性層の間に埋められるものを提供する工程が、積み重ねを、第1電極の頂部分上に提供する工程によって実行される、請求項13に従う方法。
- 第2電極が第1電極に向かって方向付けられる底部分を持ち、そこで、積み重ねで、中継又は作動性の電極を含み、それが第1の誘電性層及び第2の誘電性層の間に埋められるものを提供する工程が、積み重ねを、第2電極の底部分で提供する工程によって実行される、請求項13に従う方法。
- 第2電極が底部分を持ち、そこで、作動性の電極を提供する工程が、作動性の電極を誘電性層の底部分で提供する工程であって、その誘電性層が、第2電極の底部分に配置される工程によって実行させる、請求項12に従う方法。
- 作動性の電極を提供する工程が、作動性の電極を誘電性層の頂部分上に提供する工程であって、その誘電性層が、第1電極の頂部分上に配置される工程によって実行される、請求項12に従う方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05103644 | 2005-05-02 | ||
EP05103644.0 | 2005-05-02 | ||
PCT/IB2006/051247 WO2006117709A2 (en) | 2005-05-02 | 2006-04-21 | Capacitive rf-mems device with integrated decoupling capacitor |
Publications (2)
Publication Number | Publication Date |
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JP2008541420A true JP2008541420A (ja) | 2008-11-20 |
JP4814316B2 JP4814316B2 (ja) | 2011-11-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008509546A Expired - Fee Related JP4814316B2 (ja) | 2005-05-02 | 2006-04-21 | 統合減結合コンデンサを有する容量性rf−mems装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8238074B2 (ja) |
EP (1) | EP1880403B1 (ja) |
JP (1) | JP4814316B2 (ja) |
CN (1) | CN101213631B (ja) |
TW (1) | TW200702288A (ja) |
WO (1) | WO2006117709A2 (ja) |
Cited By (1)
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JP2011066156A (ja) * | 2009-09-16 | 2011-03-31 | Toshiba Corp | Memsデバイス |
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JP2008132583A (ja) * | 2006-10-24 | 2008-06-12 | Seiko Epson Corp | Memsデバイス |
DE102006059084B4 (de) * | 2006-12-14 | 2022-05-05 | Robert Bosch Gmbh | Mikromechanisches Bauelement mit integrierten passiven elektronischen Bauelementen und Verfahren zu seiner Herstellung |
DE112008000069T5 (de) | 2007-01-18 | 2009-11-26 | Nxp B.V. | MEMS-Kondensatorschaltung und Verfahren |
DE112008000067B4 (de) | 2007-01-18 | 2016-03-24 | Qualcomm Technologies, Inc. (N.D.Ges.D. Staates Delaware) | Schaltbares Kondensatorarray, variable Impedanzschaltung mit schaltbarem Kondensatorarray und Verfahren zum Betrieb eines geschalteten Kondensatorarrays |
CN101682315B (zh) | 2007-06-13 | 2012-08-29 | Nxp股份有限公司 | 用于可调mems电容器的控制器 |
EP2249365A1 (en) * | 2009-05-08 | 2010-11-10 | Nxp B.V. | RF MEMS switch with a grating as middle electrode |
US8927311B2 (en) | 2011-02-16 | 2015-01-06 | Freescale Semiconductor, Inc. | MEMS device having variable gap width and method of manufacture |
US9160333B2 (en) * | 2011-05-06 | 2015-10-13 | Purdue Research Foundation | Capacitive microelectromechanical switches with dynamic soft-landing |
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GB2508181A (en) * | 2012-11-22 | 2014-05-28 | Technion Res & Dev Foundation | Energy storage capacitor which maintains voltage during discharge |
US9793080B2 (en) | 2013-08-23 | 2017-10-17 | Inoso, Llc | Electromechanical power switch integrated circuits and devices and methods thereof |
US20150134109A1 (en) * | 2013-11-11 | 2015-05-14 | General Electric Company | Switched capacitive devices and method of operating such devices |
US10504656B2 (en) * | 2015-04-29 | 2019-12-10 | General Electric Company | Electrodes for linear switched capacitive devices |
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CN112038091B (zh) * | 2020-08-04 | 2022-08-19 | 厚元技术(香港)有限公司 | 一种基于mems结构的可调电容 |
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- 2006-04-21 WO PCT/IB2006/051247 patent/WO2006117709A2/en active Application Filing
- 2006-04-21 JP JP2008509546A patent/JP4814316B2/ja not_active Expired - Fee Related
- 2006-04-21 EP EP06728006A patent/EP1880403B1/en not_active Not-in-force
- 2006-04-21 CN CN2006800241459A patent/CN101213631B/zh not_active Expired - Fee Related
- 2006-04-21 US US11/913,285 patent/US8238074B2/en not_active Expired - Fee Related
- 2006-04-28 TW TW095115411A patent/TW200702288A/zh unknown
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JPS63187713A (ja) * | 1987-01-29 | 1988-08-03 | Toshiba Corp | 集積型圧電薄膜機能素子 |
JP2000030595A (ja) * | 1998-06-02 | 2000-01-28 | Nokia Mobile Phones Ltd | 共振器の構造 |
US20020171517A1 (en) * | 2001-05-17 | 2002-11-21 | Institute Of Microelectronics | Inductor-capacitor resonant rf switch |
WO2003069776A2 (fr) * | 2002-02-13 | 2003-08-21 | Commissariat A L'energie Atomique | Microresonateur mems a ondes acoustiques de volume accordable |
JP2005528010A (ja) * | 2002-02-13 | 2005-09-15 | コミツサリア タ レネルジー アトミーク | 同調可能なmemsフィルムバルク音響波マイクロ共振器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011066156A (ja) * | 2009-09-16 | 2011-03-31 | Toshiba Corp | Memsデバイス |
US8503157B2 (en) | 2009-09-16 | 2013-08-06 | Kabushiki Kaisha Toshiba | MEMS device |
Also Published As
Publication number | Publication date |
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JP4814316B2 (ja) | 2011-11-16 |
US8238074B2 (en) | 2012-08-07 |
CN101213631B (zh) | 2012-03-28 |
EP1880403A2 (en) | 2008-01-23 |
TW200702288A (en) | 2007-01-16 |
US20090201623A1 (en) | 2009-08-13 |
WO2006117709A3 (en) | 2007-04-05 |
EP1880403B1 (en) | 2012-06-13 |
WO2006117709A2 (en) | 2006-11-09 |
CN101213631A (zh) | 2008-07-02 |
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