JP4045274B2 - ダイアフラム作動微小電気機械スイッチ - Google Patents
ダイアフラム作動微小電気機械スイッチ Download PDFInfo
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- JP4045274B2 JP4045274B2 JP2004530750A JP2004530750A JP4045274B2 JP 4045274 B2 JP4045274 B2 JP 4045274B2 JP 2004530750 A JP2004530750 A JP 2004530750A JP 2004530750 A JP2004530750 A JP 2004530750A JP 4045274 B2 JP4045274 B2 JP 4045274B2
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- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910020289 Pb(ZrxTi1-x)O3 Inorganic materials 0.000 claims description 2
- 229910020273 Pb(ZrxTi1−x)O3 Inorganic materials 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
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- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
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- 229910052759 nickel Inorganic materials 0.000 claims description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 claims description 2
- 229920002120 photoresistant polymer Polymers 0.000 claims description 2
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- 229910052703 rhodium Inorganic materials 0.000 claims description 2
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- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 230000003213 activating effect Effects 0.000 claims 1
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- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229920006370 Kynar Polymers 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
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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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H57/00—Electrostrictive relays; Piezoelectric relays
- H01H2057/006—Micromechanical piezoelectric relay
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- Micromachines (AREA)
- Push-Button Switches (AREA)
- Electronic Switches (AREA)
- Amplifiers (AREA)
- Air Bags (AREA)
Description
Claims (17)
- 微小電気機械システム(MEMS)スイッチであって、
(a)上に空洞(250)が形成されている導電性金属埋め込み表面(20)を備える基板(18)と、
(b)次に第1の導電性層(130)が続きさらに第2の導電性層または誘電体層(140)が続いている、前記空洞(250)の第1の犠牲層(125)であって、前記2つの導電性層(130、140)が逆「T」の形(131、141)にパターン形成されている第1の犠牲層(125)と、
(c)第3の導電性層(72)が次に続いている平坦化された第2の犠牲層(126)と、
(d)前記第3の導電性層(72)の上の誘電体層(60)、および前記第3の導電性層(72)を露出させるようにパターン形成されたビア孔(69)と、
(e)前記パターン形成されたビア孔(69)を充填し、前記充填されたビア孔(69)の上に有限厚さを備える導電性表面であって、作動フィンガ(70)の形にパターン形成された導電性表面とを備え、前記a)からe)までの組合せが可撓性メンブレンを形成し、さらに、
(f)前記可撓性メンブレンを貫通し、かつ前記メンブレンの外側にアクセス・スロット(80)を同時に提供するビア孔を備え、空気が前記第1の犠牲層(125)および前記第2の犠牲層(126)に取って代わるMEMSスイッチ。 - 前記第1の導電性層(130)、前記第2の導電性層(140)および前記第3の導電性層(72)が、Al、Cu、Cr、Fe、Hf、Ni、Rh、Ru、Ti、Ta、W、Zrおよびこれらの合金から成るグループから選ばれた導電性金属元素で作られた金属トレースを含む、請求項1に記載のMEMSスイッチ。
- 前記金属トレースが、前記金属トレースが導電性である限りでN、O、C、Si、およびHから成るグループから選ばれた元素を含む、請求項2に記載のMEMSスイッチ。
- 前記可撓性メンブレンおよび前記誘電体層(140)が、AlN、AlO、HfO、SiN、SiO、SiCH、SiCOH、TaO、TiO、VO、WO、ZrO、およびこれらの混合物から成るグループから選ばれた材料で作られる、請求項1〜3いずれか1つに記載のMEMSスイッチ。
- 前記第1の犠牲層(125)および前記第2の犠牲層(126)が、硼燐珪酸ガラス(BPSG)、Si、SiO、SiN、SiGe、a−C:H、ポリイミド、ポリアラレンエーテル、ノルボルネン、およびこれらの官能化誘導体、ならびにベンゾシクロブタンおよびフォトレジストから成るグループから選ばれた材料で作られる犠牲層である、請求項1〜4いずれか1つに記載のMEMSスイッチ。
- 前記作動フィンガ(70)の各々は、近接する前記作動フィンガ(70)の直流電圧に対して逆極性の直流電圧の電圧を加えられる、請求項1〜5いずれか1つに記載のMEMSスイッチ。
- 前記作動フィンガ(70)に電圧が加えられたとき、前記作動フィンガ(70)間の静電引力が、前記可撓性メンブレンの曲がり湾曲を生じさせる、請求項1〜6いずれか1つに記載のMEMSスイッチ。
- 前記可撓性メンブレンの前記曲がり湾曲が、前記少なくとも1つの導電性金属埋め込み表面(20)に対して、前記少なくとも1つの導電性層(130)表面を押し当てるように仕向けて、前記MEMSスイッチを閉じる、請求項7に記載のMEMSスイッチ。
- 前記加えられた電圧を除去すると、前記可撓性メンブレンがその元の形に戻り、前記少なくとも1つの導電性金属埋め込み表面(20)から、前記少なくとも1つの導電性層(130)表面を引き離して、前記MEMSスイッチを開く、請求項8に記載のMEMSスイッチ。
- 前記可撓性メンブレンの曲がり湾曲が、凹状変位である、請求項7〜9 いずれか1つに記載のMEMSスイッチ。
- さらに、前記可撓性メンブレンの底面に配置された第2の複数の電極を備え、前記第2の複数の電極に加えられた逆の正および負の電圧が、前記導電性層(130)を前記少なくとも1つの導電性金属埋め込み表面(20)から離すように仕向けて、静止摩擦に打ち勝つ、請求項1〜10いずれか1つに記載のMEMSスイッチ。
- 可撓性メンブレンの一部を成し、かつ前記作動フィンガ(70)間に置かれた圧電材料が、直流電圧を加えられたとき、前記可撓性メンブレンを伸縮させる、請求項1〜5いずれか1つに記載のMEMSスイッチ。
- 前記圧電材料およびそれの結晶方位に依存して、前記作動フィンガ(70)間に電圧差を加えることが、前記可撓性メンブレンを強制的に凹状または凸状湾曲にする、請求項12に記載のMEMSスイッチ。
- 前記圧電材料が、BaTiO3、およびLa、FeまたはSrのドーパントを有するPb(ZrxTi1−x)O3、ならびにポリフッ化ビニリデン(PVDF)から成るグループから選ばれる、請求項12又は13に記載のMEMSスイッチ。
- 前記空洞(125)内にあるRFギャップ部分が、前記作動フィンガ間のギャップから物理的に分離されている、請求項1〜14いずれか1つに記載のMEMSスイッチ。
- 前記可撓性メンブレンが、2つの反対方向に静電的に変位され、それによって、MEMSスイッチを作動または解除するのを手助けする、請求項1〜5いずれか1つに記載のMEMSスイッチ。
- 並列に配置された複数の単極単投接点MEMSスイッチを備える単極多投接点MEMSであって、前記複数の単極単投接点MEMSスイッチが独立した直流電圧制御信号によってそれぞれ作動され、前記単極単投接点MEMSスイッチが請求項1〜5いずれか1つに記載のMEMSスイッチである、単極多投接点MEMS。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2002/027115 WO2004019362A1 (en) | 2002-08-26 | 2002-08-26 | Diaphragm activated micro-electromechanical switch |
Publications (2)
Publication Number | Publication Date |
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JP2005536847A JP2005536847A (ja) | 2005-12-02 |
JP4045274B2 true JP4045274B2 (ja) | 2008-02-13 |
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JP2004530750A Expired - Fee Related JP4045274B2 (ja) | 2002-08-26 | 2002-08-26 | ダイアフラム作動微小電気機械スイッチ |
Country Status (8)
Country | Link |
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US (1) | US7256670B2 (ja) |
EP (1) | EP1535297B1 (ja) |
JP (1) | JP4045274B2 (ja) |
CN (1) | CN1317727C (ja) |
AT (1) | ATE388480T1 (ja) |
AU (1) | AU2002331725A1 (ja) |
DE (1) | DE60225484T2 (ja) |
WO (1) | WO2004019362A1 (ja) |
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US6100477A (en) * | 1998-07-17 | 2000-08-08 | Texas Instruments Incorporated | Recessed etch RF micro-electro-mechanical switch |
JP3796988B2 (ja) * | 1998-11-26 | 2006-07-12 | オムロン株式会社 | 静電マイクロリレー |
JP3538109B2 (ja) * | 2000-03-16 | 2004-06-14 | 日本電気株式会社 | マイクロマシンスイッチ |
WO2002049199A1 (en) * | 2000-12-11 | 2002-06-20 | Rad H Dabbaj | Electrostatic device |
US6621387B1 (en) * | 2001-02-23 | 2003-09-16 | Analatom Incorporated | Micro-electro-mechanical systems switch |
US6426687B1 (en) * | 2001-05-22 | 2002-07-30 | The Aerospace Corporation | RF MEMS switch |
US6750745B1 (en) * | 2001-08-29 | 2004-06-15 | Magfusion Inc. | Micro magnetic switching apparatus and method |
KR100492004B1 (ko) * | 2002-11-01 | 2005-05-30 | 한국전자통신연구원 | 미세전자기계적 시스템 기술을 이용한 고주파 소자 |
JP4066928B2 (ja) * | 2002-12-12 | 2008-03-26 | 株式会社村田製作所 | Rfmemsスイッチ |
-
2002
- 2002-08-26 CN CNB02829517XA patent/CN1317727C/zh not_active Expired - Fee Related
- 2002-08-26 AT AT02768707T patent/ATE388480T1/de not_active IP Right Cessation
- 2002-08-26 WO PCT/US2002/027115 patent/WO2004019362A1/en active Application Filing
- 2002-08-26 JP JP2004530750A patent/JP4045274B2/ja not_active Expired - Fee Related
- 2002-08-26 EP EP02768707A patent/EP1535297B1/en not_active Expired - Lifetime
- 2002-08-26 US US10/523,310 patent/US7256670B2/en not_active Expired - Lifetime
- 2002-08-26 DE DE60225484T patent/DE60225484T2/de not_active Expired - Lifetime
- 2002-08-26 AU AU2002331725A patent/AU2002331725A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN1317727C (zh) | 2007-05-23 |
DE60225484T2 (de) | 2009-03-12 |
WO2004019362A1 (en) | 2004-03-04 |
JP2005536847A (ja) | 2005-12-02 |
EP1535297A1 (en) | 2005-06-01 |
US7256670B2 (en) | 2007-08-14 |
EP1535297A4 (en) | 2007-07-18 |
DE60225484D1 (de) | 2008-04-17 |
EP1535297B1 (en) | 2008-03-05 |
CN1650383A (zh) | 2005-08-03 |
ATE388480T1 (de) | 2008-03-15 |
US20060017533A1 (en) | 2006-01-26 |
AU2002331725A1 (en) | 2004-03-11 |
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