JP2006524919A - インプリント・リソグラフィを使用した段階的構造体の形成方法 - Google Patents
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Abstract
Description
Claims (40)
- 基板上に段付き構造体を形成する方法であって、
前記基板上である形状を有する多段構造体を形成する段階と、
前記形状の反転させたものを前記基板に転写する段階と、
を含む方法。 - 前記転写段階が更に、前記形状の反転させたものを前記基板に転写して、バイア部とトレンチ部とを形成する段階を含み、
前記バイア部の寸法が前記多段構造体の第1の下位部分の寸法に応じて設定され、前記トレンチ部の寸法が前記多段構造体の第2の下位部分の寸法に応じて設定されることを特徴形状とする請求項1に記載の方法。 - 前記転写段階が更に、
前記多段構造体をエッチング選択層で覆い、前記基板、前記エッチング選択層、前記多層構造体が多層構造体を形成する段階と、
前記多層構造体の部分を除去して前記多段構造体の第1の下位部分と重なった前記基板の領域を露出させると共に、前記多段構造体の第2の下位部分と重なった前記エッチング選択層の領域に硬化マスクを形成する段階と、
を含む請求項1に記載の方法。 - 前記転写段階が更に、
前記多段構造体を前記エッチング選択層で覆い、前記エッチング選択層、前記基板、前記多段構造体が多層構造体を形成する段階と、
前記多層構造体から材料の第1と第2のバッチを連続して除去するエッチング処理を前記多層構造体に受けさせる段階と
を含み、
前記材料の第1のバッチが、前記多段構造体の第1の下位部分、これと前記多段構造体の部分とが重なった前記エッチング選択層の第1の部分、及び前記多段構造体の第1の下位部分に重なった前記基板に相当し、
前記材料の第2のバッチが、前記肩部、これと前記多段構造体の第2の部分とが重なった前記エッチング選択層の第2の部分、前記肩部に重なった前記基板に相当することを特徴形状とする請求項1に記載の方法。 - 前記形成段階が更に、
重合可能な流体組成物を前記基板上に堆積させる段階と、
前記組成物を前記多段構造体の形状に相補的な形状を含む凹凸構造体を有する型と接触させる段階と、
前記組成物を重合させるために前記組成物を化学線に曝す段階と、
を含む請求項1に記載の方法。 - 前記形成段階が更に、実質的にシリコンを含有しない有機重合可能材料で前記多段構造体を形成する段階を含み、
前記覆う段階が更に、シリコン含有材料で前記エッチング選択層を形成する段階を含む請求項1に記載の方法。 - 前記形成段階が更に、重合可能な化合物を有する材料と、前記重合可能な化合物よりも小さな表面エネルギーを有する界面活性剤とで前記多段構造体を形成する段階を含む請求項1に記載の方法。
- 前記覆う段階が更に、重合可能な化合物を有する材料と、前記重合可能な化合物よりも小さな表面エネルギーを有する界面活性剤で前記エッチング選択層を形成する段階を含む請求項1に記載の方法。
- 前記覆う段階が更に、前記多段構造体上へ重合可能な流体の組成物を配置し、前記重合可能な流体の組成物を実質的に平滑な平面を有する型と接触させ、前記重合可能な流体組成物を前記重合可能な流体組成物を重合するための条件に曝すことによって前記エッチング選択層を形成する段階を含む請求項1に記載の方法。
- 前記覆う段階が更に、前記多段構造体上にシリコン含有材料をスピンコーティングすることによって前記エッチング選択層を配置する段階を含む請求項1に記載の方法。
- 前記基板と前記多段構造体との間にエッチング阻止層を前記基板上に形成する段階を更に含む請求項1に記載の方法。
- 前記バイア部と前記トレンチ部において導電材料を堆積させる段階を更に含む請求項1に記載の方法。
- 前記多段構造体は、段付きの凹部を含む請求項1に記載の方法。
- 前記基板をウェハとフィルム層で形成する段階を更に含み、前記転写段階が更に、前記形状の反転されたものを前記フィルム層へ転写する段階を含む請求項13に記載の方法。
- 前記ウェハと前記フィルム層で前記基板を形成する段階を更に含み、前記転写段階が更に、前記形状の反転されたものを前記ウェハへ転写する段階を含む請求項13に記載の方法。
- 前記多段構造体が突出部と肩部を有する二層の突起部を含み、前記突出部が最上面を有し、前記肩部が前記最上面と前記基板から離れて配置されている請求項1に記載の方法。
- 前記ウェハと前記フィルム層から前記基板を形成する段階を更に含み、前記転写段階が更に、前記形状の反転されたものを前記フィルム層へ転写する段階を含む請求項16に記載の方法。
- 前記ウェハと前記フィルム層から前記基板を形成する段階を更に含み、前記転写段階が更に前記形状の反転されたものを前記ウェハへ転写する段階を含む請求項16に記載の方法。
- 基板上に段付き構造体を形成する方法であって、
前記基板上に多段構造体を形成する段階と、
前記多段構造体をエッチング選択層で覆い、前記基板とともに、前記エッチング選択層と前記多段構造体が多層構造体を形成する段階と、
前記エッチング選択層の除去によって露出された多段構造体の一部に応じて、エッチングされる前記基板の領域を形成する段階と、
を含む方法。 - 前記形成する段階が更に、突出部と肩部とを有する前記多段構造体を形成する段階を含み、前記領域を形成する段階が更に、プラズマエッチングに対して前記多層構造体を露出させることによって前記肩部と重なった前記エッチング選択層の領域にハードマスクを形成させながら、突出部と重なった前記基板の領域にバイア部を形成するために、前記多層構造体の一部を同時に除去する段階を含む請求項19に記載の方法。
- 前記形成段階が、
重合可能な流体組成物を前記基板上に堆積させる段階と、
前記多段構造体の形状に相補的な形状を含む凹凸構造体を有する型と前記組成物を接触させる段階と、
前記組成物を重合するために化学線に対して前記組成物を曝す段階と、を含む請求項19に記載の方法。 - 前記形成段階が更に、実質的にシリコンを含有しない有機重合可能材料で前記多段構造体を形成する段階を含み、
前記覆う段階が更に、シリコン含有材料で前記エッチング選択層を形成する段階を更に含む請求項19に記載の方法。 - 前記覆う段階が更に、前記多段構造体上への重合可能な流体の組成物を配置し、前記重合可能な流体の組成物を実質的に平滑な平面を有する型と接触させ、前記重合可能な流体組成物を前記重合可能な流体組成物を重合するための条件に曝すことによって前記エッチング選択層を形成する段階を含む請求項21に記載の方法。
- 前記覆う段階が更に、前記多段構造体上にシリコン含有材料をスピンコーティングすることによって前記エッチング選択層を配置する段階を含む請求項21に記載の方法。
- 前記形成段階が更に、重合可能な化合物を有する材料と、前記重合可能な化合物よりも小さな表面エネルギーを有する界面活性剤とで前記多段構造体を形成する段階を含む請求項21に記載の方法。
- 前記覆う段階が更に、重合可能な化合物を有する材料と、前記重合可能な化合物よりも小さな表面エネルギーを有する界面活性剤とで前記エッチング選択層を形成する段階を含む請求項21に記載の方法。
- 前記多層構造体は、ある形状を有する段付きの凹部を含む請求項19に記載の方法。
- 前記基板をウェハとフィルム層から形成する段階を更に含み、前記転写段階が更に、前記形状の反転されたものを前記ウェハへ転写する段階を含む請求項27に記載の方法。
- 前記ウェハ及び前記フィルム層から前記基板を形成する段階を更に含み、前記転写段階が更に、前記形状の反転されたものを前記ウェハへ転写する段階を含む請求項27に記載の方法。
- 前記多段構造体が突出部と肩部を有する二層の突起部を含み、前記突出部が最上面を有し、前記肩部が前記最上面と前記基板から離して配置されており、前記二層の突起部が形状を定める請求項19に記載の方法。
- 前記ウェハと前記フィルム層から前記基板を形成する段階を更に含み、前記転写段階が更に、前記形状の反転されたものを前記フィルム層へ転写する段階を含む請求項30に記載の方法。
- 前記ウェハと前記フィルム層から前記基板を形成する段階を更に含み、前記転写段階が更に前記形状の反転されたものを前記ウェハへ転写する段階を含む請求項31に記載の方法。
- 基板上に段階的構造体を形成する方法であって、
最上面を有する突出部と前記最上面と前記基板から離間した肩部とを含む二層の突起部を有するパターン化層を前記基板上に形成する段階と、
前記突出部をエッチング選択層で覆う段階と、
前記最上面を露出するために前記エッチング選択層の一部分を除去し、前記二層の突起部の一部分を前記エッチング選択層で覆ったまま残すことによってクラウン面を形成する段階と、
前記二層の突起部の残りの部分の露出を回避しながら、前記最上面とその最上面に重なった前記パターン化層の材料とを除去する段階と、
前記肩部を露出するために、前記二層の突起部の前記の残りの部分と重なった前記エッチング選択層の領域を除去する段階と、
前記肩部とこれに重なった前記パターン化層とを除去する段階と、
を含む方法。 - 前記形成段階が更に、
重合可能な流体組成物を前記基板上に堆積させる段階と、
前記組成物を前記二層の突起部の形状に相補的な形状を含む凹凸構造体を有する型と接触させる段階と、
前記組成物を重合するために前記組成物を化学線に曝す段階と、
を更に含む請求項33に記載の方法。 - 前記形成段階が更に、実質的にシリコンを含有しない有機重合可能材料で前記パターン化層を形成する段階を含み、
前記覆う段階が更に、シリコン含有材料で前記エッチング選択層を形成する段階を含む請求項33に記載の方法。 - 前記最上面を除去する段階が更に、前記二層の突起部が形成される材料と反応性が高いエッチング化学特性に前記クラウン面を曝す段階を含み、前記エッチング選択層が形成される材料を含む前記クラウン面の領域にハードマスクを形成する請求項35に記載の方法。
- 前記覆う段階が更に、前記パターン化層上へ重合可能な流体の組成物を配置し、前記重合可能な流体の組成物を実質的に平滑な平面を有する型と接触させ、前記重合可能な流体組成物を前記重合可能な流体組成物を重合するための条件に曝すことによって前記エッチング選択層を形成する段階を含む請求項35に記載の方法。
- 前記覆う段階が更に、前記パターン化層上にシリコン含有材料をスピンコーティングすることによって前記エッチング選択層を配置する段階を含む請求項35に記載の方法。
- 前記形成段階が更に、重合可能な化合物を有する材料と、前記重合可能な化合物よりも小さな表面エネルギーを有する界面活性剤とで前記パターン化層を形成する段階を含む請求項35に記載の方法。
- 前記覆う段階が更に、重合可能な化合物を有する材料と、前記重合可能な化合物よりも小さな表面エネルギーを有する界面活性剤とで前記エッチング選択層を形成する段階を含む請求項35に記載の方法。
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| US10/423,642 US7396475B2 (en) | 2003-04-25 | 2003-04-25 | Method of forming stepped structures employing imprint lithography |
| PCT/US2004/012313 WO2004097518A2 (en) | 2003-04-25 | 2004-04-21 | A method of forming stepped structures employing imprint lithography |
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| EP (1) | EP1618602A2 (ja) |
| JP (1) | JP2006524919A (ja) |
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| CN (1) | CN1791967A (ja) |
| MY (1) | MY139450A (ja) |
| TW (1) | TW200502157A (ja) |
| WO (1) | WO2004097518A2 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1791967A (zh) | 2006-06-21 |
| US20040211754A1 (en) | 2004-10-28 |
| WO2004097518A2 (en) | 2004-11-11 |
| EP1618602A2 (en) | 2006-01-25 |
| KR20060004679A (ko) | 2006-01-12 |
| MY139450A (en) | 2009-10-30 |
| WO2004097518A3 (en) | 2005-07-21 |
| TW200502157A (en) | 2005-01-16 |
| US7396475B2 (en) | 2008-07-08 |
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