JP2018097357A - フォトレジスト組成物及びこれを利用する微細パターン形成方法 - Google Patents
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Abstract
Description
本発明が達成しようとする他の技術的課題はパターン形成が容易である微細パターン形成方法を提供することにある。
前記第1作用基は下記の化学式1又は化学式1−1の構造を有する。
前記フォトレジスト組成物は高分子鎖(polymer chain)、及び前記高分子鎖に連結された少なくとも1つの第1作用基を含む感光性高分子と、光酸発生剤(photoacid generator)と、を含む。
前記第1作用基は下記の化学式1又は化学式1−1の構造を有する。
本発明の一部の実施形態によれば、フォトレジスト組成物は感光性高分子及び光酸発生剤(PAG、photoacid generator)を含む化学増幅形ネガティブフォトレジスト組成物である。前記感光性高分子は高分子鎖(polymer chain)、及び前記高分子鎖に連結される少なくとも1つの第1作用基(first functional group)を含む。前記高分子鎖はポリスチレン主鎖(polystyrene backbone chain)又はメタクリレート主鎖(methacrylate backbone chain)であり、前記第1作用基は下記の化学式1又は下記の化学式1−1の構造を有する。
一部の実施形態によれば、前記変形された感光性高分子は前記化学式6又は前記化学式7の構造を含む。前記第1部分30aは前記化学式2又は前記化学式3の構造を含む前記感光性高分子を含む。前記感光性高分子は親水性を有し、前記変形された感光性高分子は疏水性を有する。即ち、前記露光工程によって、前記フォトレジスト膜30は親水性を有する前記第1部分30a及び疏水性を有する前記第2部分30bを含む。
他の例として、図6に示されたように、前記現像工程はNTD(negative tone developing)方法を利用して遂行される。この場合、疏水性を有する前記第2部分30bが前記現像工程によって除去され、親水性を有する前記第1部分30aが前記基板10上に残る。即ち、前記第1部分30aが前記フォトレジストパターン32を定義する。
20 蝕刻対象膜
22 パターン
30 フォトレジスト膜
40 フォトマスク
L 光
30a 第1部分
30b 第2部分
32 フォトレジストパターン
Claims (10)
- 高分子鎖(polymer chain)、及び前記高分子鎖に連結された少なくとも1つの第1作用基を含む感光性高分子と、
光酸発生剤(photoacid generator)と、を含み、
前記第1作用基は、下記の化学式1又は化学式1−1の構造を有するフォトレジスト組成物。
- 前記高分子鎖はポリスチレン主鎖(polystyrene backbone chain)又はメタクリレート主鎖(methacrylate backbone chain)である請求項1に記載のフォトレジスト組成物。
- 基板上にフォトレジスト組成物を塗布してフォトレジスト膜を形成することと、
前記基板上に露光工程を遂行して前記フォトレジスト膜の一部を露光させることと、
前記基板上に現像工程を遂行して前記フォトレジスト膜をパターニングすることと、を含み、
前記フォトレジスト組成物は、
高分子鎖(polymer chain)、及び前記高分子鎖に連結された少なくとも1つの第1作用基を含む感光性高分子と、
光酸発生剤(photoacid generator)と、を含み、
前記第1作用基は、下記の化学式1又は化学式1−1の構造を有する微細パターン形成方法。
- 前記高分子鎖は、ポリスチレン主鎖(polystyrene backbone chain)又はメタクリレート主鎖(methacrylate backbone chain)である請求項6に記載の微細パターン形成方法。
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KR20160166911 | 2016-12-08 | ||
KR10-2016-0166911 | 2016-12-08 | ||
KR10-2017-0101279 | 2017-08-09 | ||
KR1020170101279A KR102428331B1 (ko) | 2016-12-08 | 2017-08-09 | 포토 레지스트 조성물 및 이를 이용한 미세 패턴 형성 방법 |
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JP6027934B2 (ja) * | 2013-03-29 | 2016-11-16 | 富士フイルム株式会社 | 化合物、感活性光線性又は感放射線性樹脂組成物、レジスト膜、パターン形成方法、及び、これらを用いた電子デバイスの製造方法 |
JP5987802B2 (ja) * | 2013-09-04 | 2016-09-07 | 信越化学工業株式会社 | ポジ型レジスト材料並びにこれを用いたパターン形成方法 |
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