JP7065160B2 - ケイ素含有下層を使用する方法 - Google Patents
ケイ素含有下層を使用する方法 Download PDFInfo
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Description
Si(R50)p(X)4-p (8)
R50 3SiX(8a)
R50 2SiX2(8b)
R50SiX3(8c)
SiX4(8d)
G(X1)m4 (9)
(1)組成物であって、(a)1つ以上の溶媒と、(b)(i)重合単位として、縮合性ケイ素含有部分を有する1つ以上の第1の不飽和モノマーを含む、1つ以上のポリマーであって、前記縮合性ケイ素含有部分が、前記ポリマー主鎖にペンダントしている、1つ以上のポリマーと、(ii)1つ以上の縮合性ケイ素モノマーとの縮合物及び/または加水分解物と、を含み、前記1つ以上のポリマーが、下式の置換基を有するペンダント芳香族環を有しておらず、
(2)少なくとも1つの縮合性ケイ素モノマーが、式(8)を有し、
Si(R50)p(X)4-p (8)
式中、pは、0~3の整数であり、各R50は、C1-30ヒドロカルビル部分及び置換C1-30ヒドロカルビル部分から独立して選択され、各Xは、ハロ、C1-10アルコキシ、-OH、-O-C(O)-R50、及び-(O-Si(R51)2)p2-X1から独立して選択され、X1は、ハロ、C1-10アルコキシ、-OH、-O-C(O)-R50から独立して選択され、各R51は、R50及びXから独立して選択され、p2は、1~10の整数である、(1)に記載の組成物。
(3)前記縮合性ケイ素含有部分が、下式を有し、
(4)Lが、2価の連結基である、(3)に記載の組成物。
(5)前記2価の連結基が、酸素及びケイ素から選択される1個以上のヘテロ原子を含む、(4)に記載の組成物。
(6)前記2価の連結基が、1~20個の炭素原子、及び任意に1個以上のヘテロ原子を有する有機ラジカルである、(4)に記載の記載の組成物。
(7)前記2価の連結基が、式-C(=O)-O-L1-を有し、式中、L1は、単一の共有結合、または1~20個の炭素原子を有する有機ラジカルである、(3)に記載の組成物。
(8)少なくとも1つの第1の不飽和モノマーが、式(1)を有し、
(9)前記縮合物及び/または加水分解物が、重合単位として、縮合性ケイ素含有部分を有していない1つ以上の第2の不飽和モノマーをさらに含む、(1)に記載の組成物。
(10)少なくとも1つの第2の不飽和モノマーが、酸性プロトンを有し、-5~13の水中pKaを有する、(9)に記載の組成物。
(11)少なくとも1つの第2の不飽和モノマーが、式(2)を有し、
(12)前記縮合物及び/または加水分解物が、重合単位として、発色団部分を有する1つ以上の不飽和モノマーをさらに含む、(1)に記載の組成物。
(13)前記発色団部分が、前記ポリマー主鎖からペンダントしている、(12)に記載の組成物。
(14)前記発色団部分が、ピリジル、フェニル、ナフチル、アセナフチル、フルオレニル、カルバゾリル、アントラセニル、フェナントリル、ピレニル、コロネニル、テトラセニル、ペンタセニル、テトラフェニル、ベンゾテトラセニル、トリフェニレニル、ペリレニル、ベンジル、フェネチル、トリル、キシリル、スチレニル、ビニルナフチル、ビニルアントラセニル、ジベンゾチオフェニル、チオキサントニル、インドリル、及びアクリジニルから選択される、(13)に記載の組成物。
(15)方法であって、(a)組成物であって、(1)(i)重合単位として、縮合性ケイ素含有部分を有する1つ以上の第1の不飽和モノマーを含む、1つ以上のポリマーであって、前記縮合性ケイ素含有部分が、ポリマー主鎖にペンダントしている、1つ以上のポリマーと、(ii)1つ以上の縮合性ケイ素モノマーとの縮合物及び/または加水分解物であって、前記1つ以上のポリマーが、下式の置換基を有するペンダント芳香族環を有しておらず、
(16)前記ポリマー下層が、湿潤剥離によって除去される、(15)に記載の方法。
Claims (13)
- 組成物であって、(a)1つ以上の溶媒と、(b)(i)重合単位として、縮合性ケイ素含有部分を有する1つ以上の第1の不飽和モノマーであって、前記縮合性ケイ素含有部分が、ポリマー主鎖にペンダントしている、1つ以上の第1の不飽和モノマーと、発色団部分を有し、かつ縮合性ケイ素含有部分を有さない1つ以上の不飽和モノマーと、縮合性ケイ素含有部分を有さず、かつ式(3)を有し、
(ii)1つ以上の縮合性ケイ素モノマーとの縮合物及び/または加水分解物と、を含み、前記1つ以上のポリマーが、下式の置換基を有するペンダント芳香族環を有しておらず、
- 少なくとも1つの縮合性ケイ素モノマーが、式(8)を有し、
Si(R50)p(X)4-p (8)
式中、pは、0~3の整数であり、各R50は、C1-30ヒドロカルビル部分及び置換C1-30ヒドロカルビル部分から独立して選択され、各Xは、ハロ、C1-10アルコキシ、-OH、-O-C(O)-R50、及び-(O-Si(R51)2)p2-X1から独立して選択され、X1は、ハロ、C1-10アルコキシ、-OH、-O-C(O)-R50から独立して選択され、各R51は、R50及びXから独立して選択され、p2は、1~10の整数である、請求項1に記載の組成物。 - Lが、2価の連結基である、請求項3に記載の組成物。
- 前記2価の連結基が、酸素及びケイ素から選択される1個以上のヘテロ原子を含む、請求項4に記載の組成物。
- 前記2価の連結基が、1~20個の炭素原子、及び任意に1個以上のヘテロ原子を有する有機ラジカルである、請求項4に記載の組成物。
- 前記2価の連結基が、式-C(=O)-O-L1-を有し、式中、L1は、単一の共有結合、または1~20個の炭素原子を有する有機ラジカルである、請求項3に記載の組成物。
- 少なくとも1つの第1の不飽和モノマーが、式(1)を有し、
- 前記(i)の1つ以上のポリマーが、酸性プロトンを有し、-5~13の水中pKaを有し、かつ縮合性ケイ素含有部分を有しない、少なくとも1つの不飽和モノマーを重合単位としてさらに含む、請求項1~8のいずれか1項に記載の組成物。
- 前記発色団部分が、前記ポリマー主鎖からペンダントしている、請求項1~9のいずれか1項に記載の組成物。
- 前記発色団部分が、ピリジル、フェニル、ナフチル、アセナフチル、フルオレニル、カルバゾリル、アントラセニル、フェナントリル、ピレニル、コロネニル、テトラセニル、ペンタセニル、テトラフェニル、ベンゾテトラセニル、トリフェニレニル、ペリレニル、ベンジル、フェネチル、トリル、キシリル、スチレニル、ビニルナフチル、ビニルアントラセニル、ジベンゾチオフェニル、チオキサントニル、インドリル、及びアクリジニルから選択される、請求項10に記載の組成物。
- (a)(1)(i)重合単位として、縮合性ケイ素含有部分を有する1つ以上の第1の不飽和モノマーであって、前記縮合性ケイ素含有部分が、ポリマー主鎖にペンダントしている、1つ以上の第1の不飽和モノマーと、発色団部分を有し、かつ縮合性ケイ素含有部分を有さない1つ以上の不飽和モノマーと、縮合性ケイ素含有部分を有さず、かつ式(3)を有し、
(ii)1つ以上の縮合性ケイ素モノマーとの縮合物及び/または加水分解物であって、前記1つ以上のポリマーが、下式の置換基を有するペンダント芳香族環を有しておらず、
(b)前記コーティング層を硬化させてポリマー下層を形成することと、
(c)前記ポリマー下層上にフォトレジストの層を配設することと、
(d)前記フォトレジスト層をパターン状に露光して潜像を形成することと、
(e)前記潜像を現像して中にレリーフ画像を有するパターン形成されたフォトレジスト層を形成することと、
(f)前記レリーフ画像を前記基板に転写することと、
(g)湿潤剥離によって前記ポリマー下層を除去することと、
を含む、方法。 - 底面反射防止コーティング層を前記ポリマー下層上に直接配設し、次いで前記反射防止コーティング層を硬化させ、次いで前記フォトレジスト層を前記硬化した反射防止コーティング層上に直接配設することをさらに含む、請求項12に記載の方法。
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