JP2021050332A - ナノファブリケーション用の硬化性組成物 - Google Patents
ナノファブリケーション用の硬化性組成物 Download PDFInfo
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
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Abstract
Description
図1は、一実施形態が実装され得るナノインプリントリソグラフィシステム100の図である。ナノインプリントリソグラフィシステム100は、基板102上に被膜を成形するために使用される。基板102は、基板チャック104に把持され得る。基板チャック104は、限定されるものではないが、真空チャック、ピン型チャック、溝型チャック、静電チャック、電磁チャック及び/又は同様のものであり得る。
図2は、一実施形態で使用され得るテンプレート108の図である。パターン形成表面112は、メサ部110(図2の破線の枠によって特定される)上にあり得る。メサ部110は、テンプレートの前面側の引っ込んだ表面244によって取り囲まれている。メサ部の側壁246は、引っ込んだ表面244とメサ部110のパターン形成表面112とをつないでいる。メサ部の側壁246はメサ部110を取り囲んでいる。メサ部が円形である又は角が丸い実施形態では、メサ部の側壁246は角のない連続壁である単一のメサ部の側壁を指す。
図3は、1つ以上のインプリントフィールド(パターン領域又はショット領域とも呼ばれる)上の形成可能材料124にパターンを形成するために使用することができるナノインプリントリソグラフィシステム100によるインプリンティングプロセス300のフローチャートである。インプリンティングプロセス300は、ナノインプリントリソグラフィシステム100によって複数の基板102上で繰り返し実施され得る。インプリンティングプロセス300を制御するために、プロセッサ140が使用され得る。
形成可能材料124の複数の液滴を基板102上に堆積させた後に、それをインプリンティング/平坦化することが有用である。インプリンティング/平坦化は、フィールド毎で又はウェハ全体で行うことができる。形成可能材料124の液滴をフィールド毎で又は基板全体に堆積させることもできる。液滴が基板全体で堆積される場合であっても、液滴パターンの作製は、好ましくはフィールド毎で行われる。
上記の形成可能材料は硬化性組成物である。硬化性組成物をナノインプリンティング及び平坦化の関連で使用可能にするために、硬化性組成物はアクリレートモノマーを含有し、ここで、アクリレートモノマーは、サイズ及び粘度が比較的小さい。例えば、アクリレートモノマーを基礎とする硬化性組成物に関して、硬化性組成物は、硬化性組成物の総重量を基準に少なくとも25重量%のアクリレートモノマーを含み得る。幾つかの例示的な実施形態では、アクリレートモノマーの量は、硬化性組成物の総重量を基準に少なくとも25重量%、少なくとも30重量%、少なくとも35重量%、少なくとも50重量%、少なくとも60重量%、少なくとも70重量%、少なくとも75重量%、少なくとも80重量%、少なくとも85重量%、少なくとも87重量%、少なくとも89重量%、少なくとも89.5重量%、少なくとも89.9重量%、又は少なくとも90重量%であり得る。幾つかの例示的な実施形態では、アクリレートモノマーの量は、硬化性組成物の総重量を基準に25重量%〜90重量%、35重量%〜89.9重量%、50重量%〜89.5重量%、60重量%〜89重量%、70重量%〜87重量%、75重量%〜85重量%であり得る。すなわち、アクリレートモノマーは、硬化性組成物の主成分であり得る。
3,4−エポキシシクロヘキシルメチル3,4−エポキシシクロヘキサンカルボキシレート(EHEHC):
102 基板
104 基板チャック
106 基板位置決めステージ
108 テンプレート
110 メサ部(モールド)
112 パターン形成表面
114 テンプレート凹部
116 テンプレート凸部
118 テンプレートチャック
120 インプリントヘッド
122 流体ディスペンサ
124 形成可能材料
126 放射線源
128 露光経路
130 基板表面
132 基板コーティング
134 熱放射源
136 フィールドカメラ
138 液滴検査システム
140 プロセッサ(コントローラ)
142 コンピュータ可読メモリ
244 (テンプレートの前面側の)引っ込んだ表面
246 メサ部の側壁
300 インプリンディングプロセス
Claims (20)
- 硬化性組成物であって、
前記硬化性組成物の総重量を基準に少なくとも10重量%の膨張性モノマーと、
前記硬化性組成物の総重量を基準に少なくとも25重量%の500以下の分子量を有するアクリレートモノマーと、
光開始剤と、
光増感剤と、
を含み、
前記硬化性組成物は、10cP以下の粘度を有し、
前記膨張性モノマー及び前記アクリレートモノマーの総量は、前記硬化性組成物の総重量を基準に少なくとも90重量%である、硬化性組成物。 - 前記硬化性組成物の総重量を基準に10重量%〜50重量%の前記膨張性モノマーと、
前記硬化性組成物の総重量を基準に50重量%〜90重量%の前記アクリレートモノマーと、
を含む(但し、合計で100重量%を超えない)、請求項1に記載の硬化性組成物。 - 前記膨張性モノマー及び前記アクリレートモノマーの総量は、前記硬化性組成物の総重量を基準に少なくとも95重量%である、請求項1または2に記載の硬化性組成物。
- 前記硬化性組成物の硬化によって得られる硬化した生成物の体積は、硬化前の前記硬化性組成物の体積よりも3.5%以下だけ小さい、請求項1から3のいずれか1項に記載の硬化性組成物。
- 前記アクリレートモノマーの量と前記膨張性モノマーの量との比率は、4:1〜1:3である、請求項1から4のいずれか1項に記載の硬化性組成物。
- 前記膨張性モノマーは、3員環以上の構造を有する1つ以上の環を含む、請求項1から5のいずれか1項に記載の硬化性組成物。
- 前記膨張性モノマーは、スピロオルトエステル、オルトカーボネート及び二環式オルトエステルからなる群から選択される、請求項1から6のいずれか1項に記載の硬化性組成物。
- 前記膨張性モノマーは、異なる膨張性モノマーの混合物を含む、請求項1〜8のいずれか1項に記載の硬化性組成物。
- 前記アクリレートモノマーは、4.5以下の大西パラメータを有する、請求項1〜9のいずれか1項に記載の硬化性組成物。
- 前記アクリレートモノマーは、イソボルニルアクリレート、ネオペンチルグリコールジアクリレート、ベンジルアクリレート、ベンジルメタクリレート、m−キシリレンジアクリレート、トリシクロデカンジメタノールジアクリレート、1,6−ヘキサンジオールジアクリレート、ジシクロペンテニルオキシエチルアクリレート、1,4−ブタンジオールジアクリレート、1,10−デカンジオールジアクリレート、ジシクロペンテニルアクリレート、及びジシクロペンタニルアクリレート、及びそれらの誘導体からなる群から選択される、請求項1〜10のいずれか1項に記載の硬化性組成物。
- 前記アクリレートモノマーは、異なるアクリレートモノマーの混合物を含む、請求項1〜11のいずれか1項に記載の硬化性組成物。
- 前記硬化性組成物の総重量を基準に5重量%以下の光開始剤を含む、請求項1〜12のいずれか1項に記載の硬化性組成物。
- 前記硬化性組成物の総重量を基準に3重量%以下の光増感剤を含む、請求項1〜13のいずれか1項に記載の硬化性組成物。
- 前記光開始剤は、金属不含のカチオン性光開始剤及びラジカル光開始剤の組合せである、請求項1〜14のいずれか1項に記載の硬化性組成物。
- 前記膨張性モノマー、前記アクリレートモノマー、前記光開始剤、及び前記光増感剤の総量は、前記硬化性組成物の総重量を基準に少なくとも98重量%である、請求項1〜15のいずれか1項に記載の硬化性組成物。
- 界面活性剤を更に含む、請求項1〜16のいずれか1項に記載の硬化性組成物。
- テンプレート又はスーパーストレートを把持するように構成された第1のチャックと、
基板を把持するように構成された第2のチャックと、
前記基板上に請求項1〜17のいずれか一項に記載の硬化性組成物を散布するように構成された散布システムと、
前記テンプレート又は前記スーパーストレートを前記基板上の前記硬化性組成物と接触させるように構成された位置決めシステムと、
前記硬化性組成物を放射線に曝すことによって前記硬化性組成物を硬化させるように構成された放射線源と、
を備えるナノインプリントリソグラフィシステム。 - 基板上の請求項1〜17のいずれか1項に記載の硬化性組成物をテンプレート又はスーパーストレートと接触させることと、
前記硬化性組成物を放射線に曝露することによって前記硬化性組成物を硬化させることで、硬化した組成物を形成することと、
前記テンプレート又は前記スーパーストレートを前記硬化した組成物から分離することと、
前記硬化した組成物が形成された基板を処理することで、物品を製造することと、
を含む、物品を作製する方法。 - 前記硬化性組成物は、硬化前に第1の体積を有し、前記硬化した組成物は、硬化後に第2の体積を有し、
前記第2の体積は、前記第1の体積より3.5%以下だけ小さい、請求項19に記載の方法。
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2019
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- 2020-09-09 JP JP2020151601A patent/JP2021050332A/ja active Pending
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KR20210035044A (ko) | 2021-03-31 |
US20210087407A1 (en) | 2021-03-25 |
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