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JP2005075767A5
JP2005075767A5 JP2003307443A JP2003307443A JP2005075767A5 JP 2005075767 A5 JP2005075767 A5 JP 2005075767A5 JP 2003307443 A JP2003307443 A JP 2003307443A JP 2003307443 A JP2003307443 A JP 2003307443A JP 2005075767 A5 JP2005075767 A5 JP 2005075767A5
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ultraviolet light
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塩基性不純物の含有量が10ppm以下である、下記一般式(1)で表される極端紫外光反応性有機化合物からなるフォトレジスト基材。
Figure 2005075767
式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、極端紫外光反応性基、極端紫外光に活性なクロモフォアの作用に対し反応性を有する基、又は
Figure 2005075767
[Arは、RO−及び/又はROCO−(R、RO−及びROCO−は、極端紫外光反応性基又は極端紫外光に活性なクロモフォアの作用に対し反応性を有する基である)で置換されたフェニル基又はナフチル基である。]
で表される有機基であり、
X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=2、3、4又は8である。]
A photoresist base material comprising an extreme ultraviolet light-reactive organic compound represented by the following general formula (1), wherein the basic impurity content is 10 ppm or less.
Figure 2005075767
[ Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are mutually independent extreme ultraviolet light reactive groups, groups reactive to the action of chromophores active on extreme ultraviolet light, or
Figure 2005075767
[Ar is substituted with RO- and / or ROCO- (R, RO- and ROCO- are groups reactive to the action of extreme ultraviolet light reactive groups or chromophores active on extreme ultraviolet light) A phenyl group or a naphthyl group. ]
An organic group represented by
X, Y and Z are each independently a single bond or an ether bond, and l + m + n = 2, 3, 4 or 8. ]
前記極端紫外光反応性有機化合物が、室温下においてアモルファス状態であり、分子の平均直径が2nm以下である請求項1に記載のフォトレジスト基材。   The photoresist substrate according to claim 1, wherein the extreme ultraviolet light-reactive organic compound is in an amorphous state at room temperature and has an average molecular diameter of 2 nm or less. 前記Aが、
Figure 2005075767
で表される有機基であり、
前記B、C及びDが、水素原子、tert−ブチル基、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、1−テトラヒドロピラニル基、1−テトラヒドロフラニル基、1−エトキシエチル基、1−フェノキシエチル基、
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基、又は
Figure 2005075767
[Arは、RO−及び/又はROCO−(Rは、水素、tert−ブチル基、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、1−テトラヒドロピラニル基、1−テトラヒドロフラニル基、1−エトキシエチル基、1−フェノキシエチル基、又は
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基である)で置換されたフェニル基又はナフチル基である。]
で表される有機基であり、
前記X、Y及びZが、相互に独立な、単結合又はエーテル結合である請求項1に記載のフォトレジスト基材。
A is
Figure 2005075767
An organic group represented by
B, C and D are a hydrogen atom, a tert-butyl group, a tert-butyloxycarbonylmethyl group, a tert-butyloxycarbonyl group, a 1-tetrahydropyranyl group, a 1-tetrahydrofuranyl group, a 1-ethoxyethyl group, 1-phenoxyethyl group,
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
Or an organic group represented by
Figure 2005075767
[Ar is RO- and / or ROCO- (R is hydrogen, tert-butyl group, tert-butyoxycarbonylmethyl group, tert-butyoxycarbonyl group, 1-tetrahydropyranyl group, 1-tetrahydrofuranyl group, 1-ethoxyethyl group, 1-phenoxyethyl group, or
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
A phenyl group or a naphthyl group substituted with an organic group represented by ]
An organic group represented by
The photoresist base material according to claim 1, wherein X, Y, and Z are each independently a single bond or an ether bond.
前記Aが、
Figure 2005075767
で表される有機基であり、
前記B、C及びDが、水素原子、tert−ブチル基、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、1−テトラヒドロピラニル基、1−テトラヒドロフラニル基、1−エトキシエチル基、1−フェノキシエチル基、又は
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基であり、
前記X、Y及びZが、エーテル結合である請求項3に記載のフォトレジスト基材。
A is
Figure 2005075767
An organic group represented by
B, C and D are a hydrogen atom, a tert-butyl group, a tert-butyloxycarbonylmethyl group, a tert-butyloxycarbonyl group, a 1-tetrahydropyranyl group, a 1-tetrahydrofuranyl group, a 1-ethoxyethyl group, 1-phenoxyethyl group, or
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
An organic group represented by
The photoresist substrate according to claim 3, wherein X, Y, and Z are ether bonds.
塩基性不純物の含有量が10ppm以下である、下記一般式(1)で表される感放射線性有機化合物からなるフォトレジスト基材。
Figure 2005075767
[式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、又は
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基であり、X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=3又は8である。]
The photoresist base material which consists of a radiation sensitive organic compound represented by following General formula (1) whose content of a basic impurity is 10 ppm or less.
Figure 2005075767
[Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are each independently a tert-butyloxycarbonylmethyl group, a tert-butoxycarbonyl group, or
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
X, Y, and Z are mutually independent single bonds or ether bonds, and l + m + n = 3 or 8. ]
前記
Figure 2005075767
で表される有機基が、4−(tert−ブトキシカルボニルオキシ)ベンジル基、又は3,5−ジ(tert−ブトキシカルボニルオキシ)ベンジル基である請求項3〜5のいずれか一項に記載のフォトレジスト基材。
Above
Figure 2005075767
The organic group represented by 4- (tert-butoxycarbonyloxy) benzyl group or 3,5-di (tert-butoxycarbonyloxy) benzyl group is described in any one of claims 3-5 . Photoresist substrate.
前記放射線が、極端紫外光又は電子ビームである請求項5又は6に記載のフォトレジスト基材。 The photoresist base material according to claim 5 or 6, wherein the radiation is extreme ultraviolet light or an electron beam. 前記B、C及びDのうち、少なくとも一つが水素原子であり、前記X、Y及びZが、エーテル結合である請求項1〜7のいずれか一項に記載のフォトレジスト基材。 The photoresist base material according to claim 1 , wherein at least one of B, C, and D is a hydrogen atom, and the X, Y, and Z are ether bonds. 請求項1〜8のいずれか一項に記載のフォトレジスト基材を含む固形分と、溶媒とを含むフォトレジスト組成物。 The photoresist composition containing the solid content containing the photoresist base material as described in any one of Claims 1-8, and a solvent. さらに、光酸発生剤を含む請求項9に記載のフォトレジスト組成物。 Furthermore, the photoresist composition of Claim 9 containing a photo-acid generator. 下記一般式(1)で表される極端紫外光反応性有機化合物からなるフォトレジスト基材を酸性水溶液で洗浄し、イオン交換樹脂で処理するフォトレジスト基材の精製方法。
Figure 2005075767
式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、極端紫外光反応性基、極端紫外光に活性なクロモフォアの作用に対し反応性を有する基、又は
Figure 2005075767
[Arは、RO−及び/又はROCO−(R、RO−及びROCO−は、極端紫外光反応性基又は極端紫外光に活性なクロモフォアの作用に対し反応性を有する基である)で置換されたフェニル基又はナフチル基である。]
で表される有機基であり、
X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=2、3、4又は8である。]
A method for purifying a photoresist base material, comprising washing a photoresist base material composed of an extreme ultraviolet light-reactive organic compound represented by the following general formula (1) with an acidic aqueous solution and treating with an ion exchange resin.
Figure 2005075767
[ Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are mutually independent extreme ultraviolet light reactive groups, groups reactive to the action of chromophores active on extreme ultraviolet light, or
Figure 2005075767
[Ar is substituted with RO- and / or ROCO- (R, RO- and ROCO- are groups reactive to the action of extreme ultraviolet light reactive groups or chromophores active on extreme ultraviolet light) A phenyl group or a naphthyl group. ]
An organic group represented by
X, Y, and Z are mutually independent single bonds or ether bonds, and l + m + n = 2, 3, 4, or 8. ]
下記一般式(1)で表される感放射線性有機化合物からなるフォトレジスト基材を酸性水溶液で洗浄し、イオン交換樹脂で処理するフォトレジスト基材の精製方法。
Figure 2005075767
[式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、又は
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基であり、X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=3又は8である。]
A method for purifying a photoresist base material, comprising washing a photoresist base material comprising a radiation-sensitive organic compound represented by the following general formula (1) with an acidic aqueous solution and treating with an ion exchange resin.
Figure 2005075767
[Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are each independently a tert-butyloxycarbonylmethyl group, a tert-butoxycarbonyl group, or
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
X, Y, and Z are mutually independent single bonds or ether bonds, and l + m + n = 3 or 8. ]
前記酸性水溶液が、酢酸水溶液である請求項11又は12に記載のフォトレジスト基材の精製方法。 The method for purifying a photoresist substrate according to claim 11 , wherein the acidic aqueous solution is an acetic acid aqueous solution. 塩基性不純物の含有量を10ppm以下にすることによる、下記一般式(1)で表される極端紫外光反応性有機化合物からなるフォトレジスト基材の放射線感度向上方法。
Figure 2005075767
式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、極端紫外光反応性基、極端紫外光に活性なクロモフォアの作用に対し反応性を有する基、又は
Figure 2005075767
[Arは、RO−及び/又はROCO−(R、RO−及びROCO−は、極端紫外光反応性基又は極端紫外光に活性なクロモフォアの作用に対し反応性を有する基である)で置換されたフェニル基又はナフチル基である。]
で表される有機基であり、
X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=2、3、4又は8である。]
A method for improving the radiation sensitivity of a photoresist substrate made of an extreme ultraviolet light-reactive organic compound represented by the following general formula (1) by setting the content of basic impurities to 10 ppm or less.
Figure 2005075767
[ Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are mutually independent extreme ultraviolet light reactive groups, groups reactive to the action of chromophores active on extreme ultraviolet light, or
Figure 2005075767
[Ar is substituted with RO- and / or ROCO- (R, RO- and ROCO- are groups reactive to the action of extreme ultraviolet light reactive groups or chromophores active on extreme ultraviolet light) A phenyl group or a naphthyl group. ]
An organic group represented by
X, Y and Z are each independently a single bond or an ether bond, and l + m + n = 2, 3, 4 or 8. ]
塩基性不純物の含有量を10ppm以下にすることによる、下記一般式(1)で表される感放射線性有機化合物からなるフォトレジスト基材の放射線感度向上方法。
Figure 2005075767
[式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、又は
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基であり、X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=3又は8である。]
A method for improving the radiation sensitivity of a photoresist base material comprising a radiation-sensitive organic compound represented by the following general formula (1) by setting the content of basic impurities to 10 ppm or less.
Figure 2005075767
[Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are each independently a tert-butyloxycarbonylmethyl group, a tert-butoxycarbonyl group, or
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
X, Y, and Z are mutually independent single bonds or ether bonds, and l + m + n = 3 or 8. ]
請求項9又は10に記載のフォトレジスト組成物を用いるリソグラフィーによる微細加工方法。 A fine processing method by lithography using the photoresist composition according to claim 9 or 10 . 請求項9又は10に記載のフォトレジスト組成物を用いて作製した半導体装置。 A semiconductor device manufactured using the photoresist composition according to claim 9 . 塩基性不純物の含有量が10ppm以下である、下記一般式(1)で表される有機化合物。
Figure 2005075767
[式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、又は
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基であり、X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=3又は8である。]
An organic compound represented by the following general formula (1), wherein the content of basic impurities is 10 ppm or less.
Figure 2005075767
[Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are each independently a tert-butyloxycarbonylmethyl group, a tert-butoxycarbonyl group, or
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
X, Y, and Z are mutually independent single bonds or ether bonds, and l + m + n = 3 or 8. ]
下記一般式(1)で表される有機化合物を酸性水溶液で洗浄し、イオン交換樹脂で処理する有機化合物の精製方法。
Figure 2005075767
[式中、Aは、
Figure 2005075767
で表される有機基であり、
B、C及びDは、相互に独立な、tert−ブチロキシカルボニルメチル基、tert−ブチロキシカルボニル基、又は
Figure 2005075767
[Pは、炭素数6〜20の(r+1)価の芳香族基であり、Qは、炭素数4〜30の有機基であり、rは、1〜10の整数であり、sは、0〜10の整数である。]
で表される有機基であり、X、Y及びZは、相互に独立な、単結合又はエーテル結合であり、l+m+n=3又は8である。]
A method for purifying an organic compound, in which an organic compound represented by the following general formula (1) is washed with an acidic aqueous solution and treated with an ion exchange resin.
Figure 2005075767
[Wherein A is
Figure 2005075767
An organic group represented by
B, C and D are each independently a tert-butyloxycarbonylmethyl group, a tert-butoxycarbonyl group, or
Figure 2005075767
[P is an (r + 1) -valent aromatic group having 6 to 20 carbon atoms, Q is an organic group having 4 to 30 carbon atoms, r is an integer of 1 to 10, and s is 0 It is an integer of -10. ]
X, Y, and Z are mutually independent single bonds or ether bonds, and l + m + n = 3 or 8. ]
JP2003307443A 2003-08-29 2003-08-29 Photoresist base and method for refining the same, and photoresist composition Pending JP2005075767A (en)

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