JP4643145B2 - 電気機械式3トレースジャンクション装置 - Google Patents
電気機械式3トレースジャンクション装置 Download PDFInfo
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- JP4643145B2 JP4643145B2 JP2003558875A JP2003558875A JP4643145B2 JP 4643145 B2 JP4643145 B2 JP 4643145B2 JP 2003558875 A JP2003558875 A JP 2003558875A JP 2003558875 A JP2003558875 A JP 2003558875A JP 4643145 B2 JP4643145 B2 JP 4643145B2
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C23/00—Digital stores characterised by movement of mechanical parts to effect storage, e.g. using balls; Storage elements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- G—PHYSICS
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- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/56—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
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- G—PHYSICS
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- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/02—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using elements whose operation depends upon chemical change
- G11C13/025—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using elements whose operation depends upon chemical change using fullerenes, e.g. C60, or nanotubes, e.g. carbon or silicon nanotubes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0094—Switches making use of nanoelectromechanical systems [NEMS]
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/70—Resistive array aspects
- G11C2213/77—Array wherein the memory element being directly connected to the bit lines and word lines without any access device being used
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- 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
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- Y10S977/00—Nanotechnology
- Y10S977/902—Specified use of nanostructure
- Y10S977/932—Specified use of nanostructure for electronic or optoelectronic application
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- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
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Description
本願は次の特許願に関連する。
米国特許願09/915173「ナノチューブ技術で構成されたセル選択回路を有した電気機械式メモリ」2001年7月25日出願
米国特許願09/915095「ナノチューブ電気機械式メモリを有したハイブリッド回路」2001年7月25日出願
発明の背景
1.技術分野
本発明は非揮発性メモリ装置に関し、特に電気機械式ナノチューブ技術を利用した非揮発性メモリアレイに関する。
典型的なメモリ装置には“ON”または“OFF”状態を備えたシングルビットメモリセルが関与する。1ビットメモリ保存は“ON”または“OFF”条件で決定される。ビット数はそれぞれのメモリアレイのメモリセル数によって決定される。例えば、n個のビットを保存する装置はn個のメモリセルを有する必要がある。メモリセル数を増加させるためには、メモリアレイの全体サイズを増大させるか、それぞれのメモリ要素のサイズを減少させなければならない。メモリセル密度の増加は、ミクロンサイズの要素の製造からナノメータサイズの線描まで進歩したリトグラフ技術によって達成された。
本発明は3トレース電気機械回路とその使用方法を提供する。
本発明の好適実施例は新規な電気機械回路要素とその製造方法とを提供する。特に3トレースナノチューブ技術装置が示されており、その製造方法が解説されている。3トレースの使用は、(1)さらに大きなメモリ保存及び/又は情報密度を達成する三安定論理の提供、(2)当該要素やセルのスイッチング信頼性と速度の改善、及び(3)要素またはセルの故障耐久性の改善を提供する。さらに、実施例によっては3トレースジャンクションを効果的に収納し、使用、製造及び流通を可能にする。特にハイブリッド回路の場合に効果は顕著である。
追加実施例
一般的に、前述のサイズは近年の製造技術に関して説明されたものである。それらより小型または大型のものも本発明の想定内である。
Claims (33)
- 第1導電要素と、
第2導電要素と、
第1導電要素と第2導電要素との間に提供されたカーボンナノチューブリボンと、
を含んで構成され、
第1導電要素と第2導電要素とカーボンナノチューブリボンは長軸を有しており、
カーボンナノチューブリボンの長軸は第1導電要素と第2導電要素の長軸と交差するように提供されており、
第1導電要素と第2導電要素は平行な位置にあり、
カーボンナノチューブリボンは第1導電要素と第2導電要素の少なくとも一方とカーボンナノチューブリボンに適用された電圧に対応して第1導電要素と第2導電要素の少なくとも一方側に移動できることを特徴とするスイッチ。 - 第1導電要素及び第2導電要素はドープされたシリコントレースであることを特徴とする請求項1記載のスイッチ。
- カーボンナノチューブリボンは不織布であることを特徴とする請求項1記載のスイッチ。
- カーボンナノチューブリボンは単層であることを特徴とする請求項1記載のスイッチ。
- 複数の下方導電要素と複数の下方支持体とを有した下方構造体と、
複数の上方導電要素と複数の上方支持体とを有した上方構造体と、
上下両構造体間に提供され、両構造体と接触状態にある複数のカーボンナノチューブリボンと、を含んで構成され、各カーボンナノチューブリボンは複数の上下導電要素の長軸と交差する長軸を有しており、各カーボンナノチューブリボンと各導電要素との交差部はスイッチセルを提供し、両導電要素の少なくとも一方とカーボンナノチューブリボンに適用される電圧に対応してカーボンナノチューブリボンはスイッチセル内で可動であることを特徴とするスイッチアレイ。 - 上方支持体は下方支持体と垂直整合であることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電要素は下方導電要素と垂直整合であることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電要素は下方導電要素と非垂直整合であることを特徴とする請求項5記載のスイッチアレイ。
- 下方導電要素は下方支持体間に配置されており、上方導電要素は、水平方向においてその少なくとも一部が上方支持体上に配置され、異なる部分の少なくとも一部が前記上方支持体を越えて延在していることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電要素と下方導電要素は平行であり、カーボンナノチューブリボンは両導電要素と直交することを特徴とする請求項5記載のスイッチアレイ。
- 上方導電要素の突出縁部は対応する下方導電要素上で半幅分だけ広がることを特徴とする請求項5記載のスイッチアレイ。
- 上下導電要素は同一幅と同一長であることを特徴とする請求項5記載のスイッチアレイ。
- 上方支持体は絶縁材料製であることを特徴とする請求項5記載のスイッチアレイ。
- 下方支持体は絶縁材料製であることを特徴とする請求項5記載のスイッチアレイ。
- 下方支持体は下方構造体の主表面から突出した絶縁材料の列であることを特徴とする請求項5記載のスイッチアレイ。
- 下方支持体は下方構造体の主表面から突出した絶縁材料の柱であることを特徴とする請求項5記載のスイッチアレイ。
- 上方支持体は上方構造体の主表面から突出した絶縁材料の列であることを特徴とする請求項5記載のスイッチアレイ。
- 上方支持体は上方構造体の主表面から突出した絶縁材料の柱であることを特徴とする請求項5記載のスイッチアレイ。
- 下方導電要素は隣接する下方支持体と接触していることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電要素は隣接する上方支持体と接触していることを特徴とする請求項8記載のスイッチアレイ。
- 下方導電要素は隣接する下方支持体から分離されていることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電要素は隣接する上方支持体から分離されていることを特徴とする請求項5記載のスイッチアレイ。
- 上方構造体はゲート誘電層を含んでいることを特徴とする請求項5記載のスイッチアレイ。
- 下方構造体はゲート誘電層を含んでいることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電体はドープされたシリコン製であることを特徴とする請求項5記載のスイッチアレイ。
- 下方導電体はドープされたシリコン製であることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電体は窒化ケイ素製であることを特徴とする請求項5記載のスイッチアレイ。
- 下方導電体は窒化ケイ素製であることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電体はポリイミド製であることを特徴とする請求項5記載のスイッチアレイ。
- 上方導電体は低融点金属製であることを特徴とする請求項5記載のスイッチアレイ。
- 第1導電要素と、第2導電要素と、両導電要素間に提供されたカーボンナノチューブリボンとを有したスイッチセルを利用する方法であって、
第1導電要素と第2導電要素とカーボンナノチューブリボンは長軸を有しており、
カーボンナノチューブリボンの長軸は第1導電要素と第2導電要素の長軸と交差するように提供されており、
第1導電要素と第2導電要素は平行な位置にあり、
第1導電要素と第2導電要素の少なくとも一方とカーボンナノチューブリボンに対して電圧を適用し、ナノチューブリボンを両導電要素の少なくとも一方側に移動させるステップと、
両導電要素の少なくとも一方とカーボンナノチューブリボンからの電気信号を検出してスイッチセルの電気状態を判定するステップと、
を含んで成る方法。 - カーボンナノチューブリボンが第1導電要素側に移動すれば電気状態は第1状態であり、カーボンナノチューブリボンが第2導電要素側に移動すれば電気状態は第2状態であり、カーボンナノチューブリボンが両導電要素間に存在すれば電気状態は第3状態であり、第1、第2及び第3状態はそれぞれ異なる情報コード化に対応することを特徴とする請求項31記載の方法。
- 電圧は第1及び第2導電要素の両方に適用され、両要素はカーボンナノチューブリボンを移動させることを特徴とする請求項31記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/033,323 US6911682B2 (en) | 2001-12-28 | 2001-12-28 | Electromechanical three-trace junction devices |
PCT/US2002/040852 WO2003058652A2 (en) | 2001-12-28 | 2002-12-19 | Electromechanical three-trace junction devices |
Publications (2)
Publication Number | Publication Date |
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JP2005514784A JP2005514784A (ja) | 2005-05-19 |
JP4643145B2 true JP4643145B2 (ja) | 2011-03-02 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003558875A Expired - Fee Related JP4643145B2 (ja) | 2001-12-28 | 2002-12-19 | 電気機械式3トレースジャンクション装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6911682B2 (ja) |
EP (2) | EP2108493A1 (ja) |
JP (1) | JP4643145B2 (ja) |
AU (1) | AU2002364966A1 (ja) |
CA (1) | CA2471378A1 (ja) |
DE (1) | DE60233073D1 (ja) |
TW (3) | TWI303421B (ja) |
WO (1) | WO2003058652A2 (ja) |
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- 2002-12-19 WO PCT/US2002/040852 patent/WO2003058652A2/en active Search and Examination
- 2002-12-27 TW TW091137563A patent/TWI303421B/zh active
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EP1459334B1 (en) | 2009-07-22 |
TWI303421B (en) | 2008-11-21 |
TWI313669B (en) | 2009-08-21 |
JP2005514784A (ja) | 2005-05-19 |
EP1459334A4 (en) | 2007-05-23 |
CA2471378A1 (en) | 2003-07-17 |
TW200413249A (en) | 2004-08-01 |
TW200307941A (en) | 2003-12-16 |
AU2002364966A8 (en) | 2003-07-24 |
EP1459334A2 (en) | 2004-09-22 |
DE60233073D1 (de) | 2009-09-03 |
WO2003058652A3 (en) | 2004-07-08 |
AU2002364966A1 (en) | 2003-07-24 |
US20030124325A1 (en) | 2003-07-03 |
WO2003058652A2 (en) | 2003-07-17 |
TW200413248A (en) | 2004-08-01 |
TWI307330B (en) | 2009-03-11 |
US6911682B2 (en) | 2005-06-28 |
EP2108493A1 (en) | 2009-10-14 |
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