JP5412099B2 - データ記憶媒体および関連する方法 - Google Patents
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Description
表面に電極層を有する支持基板と、
上記電極層に沿って延在する感応材料層であって、感応材料の体積は局所的電場の作用によって2つの電気的状態の間で局所的に変更されるように適合される、上記感応材料層とを含み、さらに
感応材料層に全体的に平行な基準面を有し、該基準面は電極層と組み合わせて静電場を加える少なくとも1つの要素が該基準面に動かされることを意図されている、データ記憶媒体であって、
この基準面に平行に、電極層の一部を形成し、少なくとも1つの電気絶縁帯によって分離される複数の導電部を含み、これらの導電部は基準面に平行な少なくとも一方向に多くても100nmに等しい寸法を有し、導電部の少なくとも一部は電気的に相互接続されており、これらの導電部は感応材料層内のデータ書込み/読取り位置を画定することを特徴とする、データ記憶媒体を提案する。
2 導電層(電気的な連続層)
3、102、103、204 中間酸化層
4、104、205、454 基板
5 近視野顕微鏡
6、106、206、306、406、506 力線
7 領域
10、20、30、40、45、50 データ記憶媒体
100’ 電極層
100” 金属領域(導電領域)
107、207、307、407 ナノドメイン
110 穴
200、203、400、450 金属層
200’ ランド(突出部)
200” 導電領域
202 絶縁材料(酸化シリコン)
300 転位
300’、300” 導電領域(単結晶構造)
301 強誘電体材料の層
304 酸化層
305 シリコン支持体
305’、305” 単結晶構造
300 金属
310 構造の表面
400” 突出部
404 シリコン基板
450” 突出部
500” 導電部
503、504 金属アレイ
510、511 接触領域
Claims (20)
- 表面に電極層(100’、203、200’、300、300’)を有する支持基板と、
前記電極層に沿って延在する強誘電体材料からなる感応材料層(101、201、301、401、451、501)であって、感応材料の体積は局所的電場の作用によって2つの電気的状態の間で局所的に変更されるように適合される、前記感応材料層とを含み、さらに
前記感応材料層に全体的に平行な基準面を有し、該基準面は電極層と組み合わせて静電場を加える少なくとも1つの要素が該基準面に沿って動かされるように構成される、データ記憶媒体であって、
前記基準面に平行に、電極層の一部を形成し、かつ電気絶縁帯によって分離される複数の導電部(100”、200”、300”、400”、450”、500”)を含み、電気絶縁帯は感応材料層とは異なる電気絶縁材料を含み、導電部および組み込まれた電気絶縁帯は感応材料層で覆われ、導電部は基準面に平行な少なくとも一方向に多くても100nmに等しい寸法を有し、導電部の少なくとも一部は電気的に相互接続されており、電場の力線が少なくとも1つの要素と導電部との間で収束されるように、導電部は感応材料層内のデータ書込み/読取り位置(107;207;307;407;506)を画定することを特徴とする、媒体。 - 前記寸法が多くても50nmに等しいことを特徴とする、請求項1に記載の媒体。
- 前記複数の導電部の各々が、基準面に平行に測定して、前記複数の隣接する導電部から100nm未満の距離にあることを特徴とする、請求項1または2に記載の媒体。
- 強誘電体材料が、BaTiO 3 、SrTiO 3 、LaAiO 3 、あるいはPZT(PbZr)TiO 3 、Bi 4 Ti 3 O 12 、またはSrRuO 3 であることを特徴とする、請求項1から3のいずれか一項に記載の媒体。
- 強誘電体材料がタンタル酸リチウムLiTaO3であることを特徴とする、請求項1から3のいずれか一項に記載の媒体。
- 支持基板と電極層との間に酸化層をさらに含むことを特徴とする、請求項1から5のいずれか一項に記載の媒体。
- 電極層が平面であり、感応材料層が平面でありかつ連続的であることを特徴とする、請求項1から6のいずれか一項に記載の媒体。
- 前記導電部が第1の組の平行線の線と第2の組の平行導線の線との交差領域を含み、第2の組の線は第1の組の線と横断的に交わり、これらの線は前記導電部を相互接続し、第1の組および第2の組の線は同一平面上にあることを特徴とする、請求項7に記載の媒体。
- 第1および第2の組の線が、少なくとも2つの異なる方向の2つの単結晶材料構造間のボンディング界面の転位に形成され、これらの線は前記導電部を相互接続することを特徴とする、請求項8に記載の媒体。
- 導電線が長方形または正方形のメッシュを画定することを特徴とする、請求項8または9に記載の媒体。
- 導電部が下層の導電材料層から感応材料層の方に突き出たランドを含むことを特徴とする、請求項7または8に記載の媒体。
- 下層が互いに交差する導電線を含むことを特徴とする、請求項11に記載の媒体。
- 下層が連続的であることを特徴とする、請求項11に記載の媒体。
- 基準面が感応材料層(501)と感応材料層に対して電極層(504)の反対側で電極を形成する複数の線(503)との間にあることを特徴とする、請求項7に記載の媒体。
- 電極層(100’;203、200’;300、300’)と強誘電体材料からなる感応材料層(101;201;301)が形成され、感応材料層とは異なる電気絶縁材料を含む電気絶縁材料(102;202;305)が、電極層内に複数の導電部(100”;200’、200”;300’、300”)を画定しかつ分離する電気絶縁帯を形成するために使用され、導電部および組み込まれた電気絶縁帯は感応材料層で覆われ、導電部は基準面に平行な少なくとも一方向に多くても100nmに等しい寸法を有し、導電部の少なくとも一部は電気的に相互接続されており、電場の力線が、静電場を印加するための少なくとも1つの要素と導電部との間で収束されるように、導電部は感応材料層内のデータ書込み/読取り位置(107;207;307;407;506)を画定する、請求項1から14のいずれか一項に記載のデータ記憶媒体を製造する方法。
- 電極層が2つの単結晶構造(305’;305”)を結合するステップによって製造され、2つの単結晶副層間のボンディング界面に転位の交差を形成し、前記結合するステップの後に、導電材料(300)が前記副層の1つを通って拡散して前記転位に導電線(図11A;11B)を形成するステップが続くことを特徴とする、請求項15に記載の方法。
- 電極層が感応材料層(101;201)に導電材料層(100;200)を蒸着することによって形成され、導電部(100”;200’;200”)は導電材料層において少なくとも電気絶縁材料(102;202)のエッチングおよび蒸着操作によって画定され、この後、電極層が前記支持基板(104;205)に結合されることを特徴とする、請求項15に記載の方法。
- 前記導電部(100”;200’;200”)を接続する接続部分が前記導電材料層内に形成されることを特徴とする、請求項17に記載の方法。
- 導電部が、第1の導電層と呼ばれる前記導電材料層をエッチングすることによって絶縁される導電材料ランド(200’)の形をとり、ランドに前記導電材料ランドを相互接続する第2の導電層(203)が蒸着されることを特徴とする、請求項17に記載の方法。
- 第2の導電層(203)が連続的であることを特徴とする、請求項19に記載の方法。
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JP2859715B2 (ja) * | 1989-08-10 | 1999-02-24 | キヤノン株式会社 | 記録媒体用基板及びその製造方法、記録媒体、記録方法、記録再生方法、記録装置、記録再生装置 |
JPH0418753A (ja) * | 1990-05-11 | 1992-01-22 | Olympus Optical Co Ltd | 強誘電体メモリ |
JPH04159635A (ja) * | 1990-10-24 | 1992-06-02 | Canon Inc | 記録媒体、その製造方法及びそれを用いた情報処理装置 |
FR2681472B1 (fr) | 1991-09-18 | 1993-10-29 | Commissariat Energie Atomique | Procede de fabrication de films minces de materiau semiconducteur. |
JP3044421B2 (ja) * | 1992-05-08 | 2000-05-22 | キヤノン株式会社 | 記録媒体製造方法 |
FR2766620B1 (fr) | 1997-07-22 | 2000-12-01 | Commissariat Energie Atomique | Realisation de microstructures ou de nanostructures sur un support |
NO309500B1 (no) * | 1997-08-15 | 2001-02-05 | Thin Film Electronics Asa | Ferroelektrisk databehandlingsinnretning, fremgangsmåter til dens fremstilling og utlesing, samt bruk av samme |
JP3940883B2 (ja) * | 2000-09-18 | 2007-07-04 | セイコーエプソン株式会社 | 強誘電体メモリ装置の製造方法 |
FR2815121B1 (fr) | 2000-10-06 | 2002-12-13 | Commissariat Energie Atomique | Procede de revelation de defauts cristallins et/ou de champs de contraintes a l'interface d'adhesion moleculaire de deux materiaux solides |
US6607969B1 (en) | 2002-03-18 | 2003-08-19 | The United States Of America As Represented By The Secretary Of The Navy | Method for making pyroelectric, electro-optical and decoupling capacitors using thin film transfer and hydrogen ion splitting techniques |
US6812509B2 (en) * | 2002-06-28 | 2004-11-02 | Palo Alto Research Center Inc. | Organic ferroelectric memory cells |
WO2005045821A1 (ja) * | 2003-11-07 | 2005-05-19 | Murata Manufacturing Co., Ltd. | 誘電体メモリー素子 |
KR100552701B1 (ko) * | 2003-11-24 | 2006-02-20 | 삼성전자주식회사 | 전하-쌍극자가 결합된 정보 저장 매체 및 그 제조 방법 |
KR100590580B1 (ko) * | 2005-03-21 | 2006-06-19 | 삼성전자주식회사 | 패턴된 강유전체 미디어의 제조방법 |
US20060291364A1 (en) * | 2005-04-25 | 2006-12-28 | Kozicki Michael N | Solid electrolyte probe storage device, system including the device, and methods of forming and using same |
FR2895391B1 (fr) | 2005-12-27 | 2008-01-25 | Commissariat Energie Atomique | Procede d'elaboration de nanostructures ordonnees |
US20080142859A1 (en) * | 2006-12-19 | 2008-06-19 | Qing Ma | Methods of forming ferroelectric media with patterned nano structures for data storage devices |
US7598096B2 (en) * | 2006-12-22 | 2009-10-06 | Intel Corporation | Methods of forming ferroelectric crystals as storage media and structures formed thereby |
US7782649B2 (en) * | 2007-12-20 | 2010-08-24 | Intel Corporation | Using controlled bias voltage for data retention enhancement in a ferroelectric media |
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2007
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- 2008-12-15 EP EP08291188A patent/EP2073204B1/fr active Active
- 2008-12-15 DE DE602008006155T patent/DE602008006155D1/de active Active
- 2008-12-15 AT AT08291188T patent/ATE505790T1/de not_active IP Right Cessation
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US8445122B2 (en) | 2013-05-21 |
FR2925748A1 (fr) | 2009-06-26 |
DE602008006155D1 (de) | 2011-05-26 |
ATE505790T1 (de) | 2011-04-15 |
EP2073204B1 (fr) | 2011-04-13 |
US20090161405A1 (en) | 2009-06-25 |
JP2009217923A (ja) | 2009-09-24 |
FR2925748B1 (fr) | 2010-01-29 |
EP2073204A1 (fr) | 2009-06-24 |
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