JP2005107482A - 微小電子機械システム構造体およびその製造方法 - Google Patents
微小電子機械システム構造体およびその製造方法 Download PDFInfo
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- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/02—High-level flushing systems
- E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
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Abstract
【解決手段】光学干渉ディスプレイセルの構造は、第1の電極、第2の電極およびポストを含む。第2の電極は、材料層で覆われた導体層を含み、第1の電極とほぼ平行に配設されている。サポートは、第1のプレートと第2のプレートの間に配置されて、空隙が形成される。構造を製造する剥離エッチング法において、材料層は、導体層をエッチング剤による損傷から保護する。材料層はまた、空気中の酸素および湿気による損傷から導体層を保護する。
【選択図】図5D
Description
2D = Nλ (1.1)
ここで、Nは自然数である。
本発明の別の目的は、犠牲層と懸垂型可動微少構造体との間に保護層が追加され、かつ保護層および犠牲層を形成する材料が高度なエッチング選択性を有する、光学干渉ディスプレイセルに好適な、微小電子機械システム構造体を提供することである。
本発明のさらに別の目的は、犠牲層および懸垂型可動微少構造体の材料が、高度なエッチング選択性を有さない材料とすることのできる、光学干渉ディスプレイセルに好適な、微小電子機械システム構造体を提供することである。
本発明のさらに別の目的は、光学干渉ディスプレイセルに好適であり、かつ上記の保護層を備える微小電子機械システム構造体を製造するのに好適な、微小電子機械システム構造体を提供することである。
第1の電極と
第2の電極であって、
第1の材料層、および
該第1の材料層上に配置された、前記第1の電極にほぼ平行な導体層を含む、前記第2の電極と、
前記第1の電極と前記第1の材料層との間に配置された空隙を形成する支持体、とを含み、
前記空隙を形成するために、前記第1の電極と前記第1の材料層との間の犠牲層が、構造剥離エッチング法により除去されるときに、前記第1の材料層が、第2の電極をエッチング剤のエッチングから保護する、前記微小電子機械システム構造体に関する。
また、本発明は、 基板において好適な、光学干渉ディスプレイセルの製造方法であって、
前記基板上に第1の電極を形成するステップと、
前記第1の電極上に犠牲層を形成するステップと、
前記犠牲層および前記第1の電極内に少なくとも2つの開口を形成して、光学干渉ディスプレイセルの位置を画定するステップと、
前記開口内にサポータを形成するステップと、
前記犠牲層と前記サポータの上に第1の材料層を形成するステップと、
前記第1の材料層の上に導体層を形成するステップと、
前記導体層および前記第1の材料層を画定して第2の電極を形成するステップと、
構造剥離エッチング法によって前記犠牲層を除去するステップとを含む、前記光学干渉ディスプレイセルの製造方法に関する。
構造剥離エッチング法によって犠牲層を除去する工程においては、エッチングプラズマは、犠牲層および保護層に高度な選択性を有しており、このために犠牲層だけが除去されることになる。この理由で、犠牲層および第2の電極に使用する材料の選択には制限がない。
本発明が提供する、微小電子機械システム構造体およびその製造方法の説明をより分かり易くするために、本発明の一実施態様は、光学干渉ディスプレイセル構造およびその製造方法を例として取りあげて、本発明において開示する構造剥離の構造およびその製造方法の適用方法を示し、さらにその実施態様の開示によって本発明の利点をさらに説明する。
図5A〜図5Dは、本発明の別の実施態様による、光学干渉ディスプレイセル構造の製造方法を示す。図5Aを参照すると、第1の電極502および犠牲層506が、透明基板501の上に順番に形成される。犠牲層506の材料は、誘電体材料のような透明材料か、または金属材料のような不透明材料とすることができる。その中にサポータを形成するのに好適な、開口508が、第1の電極502および犠牲層506内に、フォトリソグラフィ工程によって形成される。
本発明に開示する懸垂型可動微少構造体を保護するのに使用する材料層の厚さは、要求に応じて決定する。また、2つの実施例における懸垂型可動微少構造体を保護するのに使用する材料層の厚さには制限がない。それは光学干渉ディスプレイセルの大きさに依存する。一般的には、本発明の実施態様における、材料層の厚さは、約数オングストロームから2000オングストローム、好ましくは約200オングストロームから1000オングストロームである。
102、104 ウォール
106 ポスト、サポート
108 空隙
110 第1の電極
111 犠牲層
112 開口
116 空隙
400、500、600 光学干渉ディスプレイセル
401、501、601 透明基板
402、502、602 第1の電極
404、504、604 導体層
405、505、605 第2の電極
406、506、606 犠牲層
408、508、608 開口
410、510、610 材料層
412、512、612 サポータ
414、514、614 材料層
416、516 空隙
518、618 材料層
616 材料層
618a スペーサ
620 空隙
Claims (30)
- 光学干渉ディスプレイセルにおいて使用するのに適した微小電子機械システム構造体であって、
第1の電極と
第2の電極であって、
第1の材料層、および
該第1の材料層上に配置された、前記第1の電極にほぼ平行な導体層を含む、前記第2の電極と、
前記第1の電極と前記第1の材料層との間に配置された空隙を形成する支持体、とを含み、
前記空隙を形成するために、前記第1の電極と前記第1の材料層との間の犠牲層が、構造剥離エッチング法により除去されるときに、前記第1の材料層が、第2の電極をエッチング剤のエッチングから保護する、前記微小電子機械システム構造体。 - 犠牲層の材料が、誘電体材料、金属材料、またはケイ素材料からなる群から選択される、請求項1に記載の微小電子機械システム構造体。
- 第2の電極を覆う、第2の材料層をさらに含む、請求項1に記載の微小電子機械システム構造体。
- 第2の電極の上に配置された第2の材料層と、
第2の電極と第1の材料層の側壁上に配置されたスペーサとをさらに含む、請求項1に記載の微小電子機械システム構造体。 - 第1の材料層の材料が、ケイ素材料、誘電体材料、透明導体材料、高分子ポリマー、金属酸化物およびそれらの任意の組合せからなる群から選択される、請求項1に記載の微小電子機械システム構造体。
- 第2の材料層の材料が、ケイ素材料、誘電体材料、透明導体材料、高分子ポリマー、金属酸化物およびそれらの任意の組合せからなる群から選択される、請求項3に記載の微小電子機械システム構造体。
- スペーサの材料が、ケイ素材料、誘電体材料、透明導体材料、高分子ポリマー、金属酸化物およびそれらの任意の組合せからなる群から選択される、請求項4に記載の微小電子機械システム構造体。
- ケイ素材料が、ポリシリコンまたはアモルファスシリコンである、請求項5、6、または7に記載の微小電子機械システム構造体。
- 誘電体材料が、酸化ケイ素、窒化ケイ素、または酸窒化ケイ素である、請求項5、6、または7に記載の微小電子機械システム構造体。
- 透明導体材料が、インジウム錫酸化物、インジウム亜鉛酸化物、またはインジウム酸化物である、請求項5、6、または7に記載の微小電子機械システム構造体。
- 高分子ポリマーが、パラフィンまたは蒸気によって被覆可能な高分子材料である、請求項5、6、または7に記載の微小電子機械システム構造体。
- 第1の材料層の厚さが、約数オングストロームから2000オングストロームである、請求項1に記載の微小電子機械システム構造体。
- 第1の材料層の厚さが、約200オングストロームから1000オングストロームである、請求項1に記載の微小電子機械システム構造体。
- 第2の材料層の厚さが、数オングストロームから2000オングストロームである、請求項3に記載の微小電子機械システム構造体。
- 第2の材料層の厚さが、約200オングストロームから1000オングストロームである、請求項3に記載の微小電子機械システム構造体。
- サポータを形成する材料が、ポジティブフォトレジスト、ネガティブフォトレジスト、アクリル樹脂、およびエポキシ樹脂を含む、請求項1に記載の微小電子機械システム構造体。
- 導体層を形成する材料が金属材料である、請求項1に記載の微小電子機械システム構造体。
- 基板において好適な、光学干渉ディスプレイセルの製造方法であって、
前記基板上に第1の電極を形成するステップと、
前記第1の電極上に犠牲層を形成するステップと、
前記犠牲層および前記第1の電極内に少なくとも2つの開口を形成して、光学干渉ディスプレイセルの位置を画定するステップと、
前記開口内にサポータを形成するステップと、
前記犠牲層と前記サポータの上に第1の材料層を形成するステップと、
前記第1の材料層の上に導体層を形成するステップと、
前記導体層および前記第1の材料層を画定して第2の電極を形成するステップと、
構造剥離エッチング法によって前記犠牲層を除去するステップとを含む、前記光学干渉ディスプレイセルの製造方法。 - 導体層および第1の材料層を画定した後に、
第2の電極を覆う第2の材料層を形成するステップと、
前記第2の材料層の一部を除去して、前記第2の材料層の下の犠牲層を露出させるステップとをさらに含む、請求項18に記載の光学干渉ディスプレイセルの製造方法。 - 犠牲層を形成する材料が、誘電体材料、金属材料またはケイ素材料からなる群から選択される、請求項18に記載の光学干渉ディスプレイセルの製造方法。
- 第1の材料層を形成する材料が、ケイ素材料、誘電体材料、透明導体材料、高分子ポリマー、金属酸化物およびそれらの任意の組合せからなる群から選択される、請求項18に記載の光学干渉ディスプレイセルの製造方法。
- 第2の材料層を形成する材料が、ケイ素材料、誘電体材料、透明導体材料、高分子ポリマー、金属酸化物およびそれらの任意の組合せからなる群から選択される、請求項19に記載の光学干渉ディスプレイセルの製造方法。
- ケイ素材料を形成する材料が、ポリシリコンまたはアモルファスシリコンである、請求項21または22に記載の光学干渉ディスプレイセルの製造方法。
- 誘電体材料を形成する材料が、酸化ケイ素、窒化ケイ素、または酸窒化ケイ素である、請求項21または22に記載の光学干渉ディスプレイセルの製造方法。
- 透明導体材料を形成する材料が、インジウム錫酸化物、インジウム亜鉛酸化物、またはインジウム酸化物である、請求項21または22に記載の光学干渉ディスプレイセルの製造方法。
- 高分子ポリマーを形成する材料が、パラフィンまたは蒸気によって被覆可能な高分子材料である、請求項21または22に記載の光学干渉ディスプレイセルの製造方法。
- 第1の材料層の厚さが、約数オングストロームから2000オングストロームである、請求項18に記載の光学干渉ディスプレイセルの製造方法。
- 第1の材料層の厚さが、約200オングストロームから1000オングストロームである、請求項18に記載の光学干渉ディスプレイセルの製造方法。
- 第2の材料層の厚さが、数オングストロームから2000オングストロームである、請求項19に記載の光学干渉ディスプレイセルの製造方法。
- 第2の材料層の厚さが、約200オングストロームから1000オングストロームである、請求項19に記載の光学干渉ディスプレイセルの製造方法。
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JP2013545117A (ja) * | 2010-09-03 | 2013-12-19 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | 干渉ディスプレイデバイス |
JP2014514604A (ja) * | 2011-03-24 | 2014-06-19 | クゥアルコム・メムス・テクノロジーズ・インコーポレイテッド | ディスプレイデバイスのための誘電体スペーサ |
JP2017176167A (ja) * | 2016-03-28 | 2017-10-05 | 株式会社ジック | 無菌動物飼育装置用のフィルター、滅菌缶及び輸送缶 |
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TW570896B (en) * | 2003-05-26 | 2004-01-11 | Prime View Int Co Ltd | A method for fabricating an interference display cell |
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US20070064760A1 (en) * | 2003-06-12 | 2007-03-22 | Soren Kragh | Optical amplification in miniaturized polymer cavity resonators |
US7221495B2 (en) * | 2003-06-24 | 2007-05-22 | Idc Llc | Thin film precursor stack for MEMS manufacturing |
TW200506479A (en) * | 2003-08-15 | 2005-02-16 | Prime View Int Co Ltd | Color changeable pixel for an interference display |
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TWI231865B (en) * | 2003-08-26 | 2005-05-01 | Prime View Int Co Ltd | An interference display cell and fabrication method thereof |
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US6982820B2 (en) * | 2003-09-26 | 2006-01-03 | Prime View International Co., Ltd. | Color changeable pixel |
TW593126B (en) * | 2003-09-30 | 2004-06-21 | Prime View Int Co Ltd | A structure of a micro electro mechanical system and manufacturing the same |
US6861277B1 (en) * | 2003-10-02 | 2005-03-01 | Hewlett-Packard Development Company, L.P. | Method of forming MEMS device |
US6967757B1 (en) * | 2003-11-24 | 2005-11-22 | Sandia Corporation | Microelectromechanical mirrors and electrically-programmable diffraction gratings based on two-stage actuation |
TWI256941B (en) * | 2004-02-18 | 2006-06-21 | Qualcomm Mems Technologies Inc | A micro electro mechanical system display cell and method for fabricating thereof |
US7119945B2 (en) * | 2004-03-03 | 2006-10-10 | Idc, Llc | Altering temporal response of microelectromechanical elements |
US20060066932A1 (en) * | 2004-09-27 | 2006-03-30 | Clarence Chui | Method of selective etching using etch stop layer |
-
2003
- 2003-09-30 TW TW092127100A patent/TW593126B/zh not_active IP Right Cessation
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2004
- 2004-03-29 US US10/810,660 patent/US7291921B2/en not_active Expired - Fee Related
- 2004-03-31 JP JP2004102022A patent/JP3950119B2/ja not_active Expired - Fee Related
- 2004-04-12 KR KR1020040025015A patent/KR100672911B1/ko not_active IP Right Cessation
-
2007
- 2007-10-26 US US11/925,477 patent/US20080041817A1/en not_active Abandoned
- 2007-10-26 US US11/925,551 patent/US7709964B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013545117A (ja) * | 2010-09-03 | 2013-12-19 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | 干渉ディスプレイデバイス |
JP2014514604A (ja) * | 2011-03-24 | 2014-06-19 | クゥアルコム・メムス・テクノロジーズ・インコーポレイテッド | ディスプレイデバイスのための誘電体スペーサ |
JP2017176167A (ja) * | 2016-03-28 | 2017-10-05 | 株式会社ジック | 無菌動物飼育装置用のフィルター、滅菌缶及び輸送缶 |
Also Published As
Publication number | Publication date |
---|---|
US20080041817A1 (en) | 2008-02-21 |
TW593126B (en) | 2004-06-21 |
US7709964B2 (en) | 2010-05-04 |
US20080055699A1 (en) | 2008-03-06 |
KR20050031857A (ko) | 2005-04-06 |
KR100672911B1 (ko) | 2007-01-22 |
JP3950119B2 (ja) | 2007-07-25 |
US7291921B2 (en) | 2007-11-06 |
US20050078348A1 (en) | 2005-04-14 |
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