JP4595688B2 - レジスト材料の製造方法およびレジスト材料ならびに露光方法 - Google Patents
レジスト材料の製造方法およびレジスト材料ならびに露光方法 Download PDFInfo
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- JP4595688B2 JP4595688B2 JP2005170306A JP2005170306A JP4595688B2 JP 4595688 B2 JP4595688 B2 JP 4595688B2 JP 2005170306 A JP2005170306 A JP 2005170306A JP 2005170306 A JP2005170306 A JP 2005170306A JP 4595688 B2 JP4595688 B2 JP 4595688B2
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- resist
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- extreme ultraviolet
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- 239000000463 material Substances 0.000 title claims description 70
- 238000000034 method Methods 0.000 title claims description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 53
- 239000002861 polymer material Substances 0.000 claims description 43
- 229910052710 silicon Inorganic materials 0.000 claims description 32
- 238000010521 absorption reaction Methods 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 17
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000000059 patterning Methods 0.000 claims 1
- 238000002834 transmittance Methods 0.000 description 17
- 230000003287 optical effect Effects 0.000 description 13
- 125000004430 oxygen atom Chemical group O* 0.000 description 10
- 238000005530 etching Methods 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 125000004429 atom Chemical group 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 230000031700 light absorption Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 229920013716 polyethylene resin Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007687 exposure technique Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920003050 poly-cycloolefin Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- ZZJNLOGMYQURDL-UHFFFAOYSA-M trifluoromethanesulfonate;tris(4-methylphenyl)sulfanium Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(C)=CC=C1[S+](C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 ZZJNLOGMYQURDL-UHFFFAOYSA-M 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
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- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Materials For Photolithography (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Description
本発明のレジスト材料は、極紫外線を照射光とする露光方法に用いられるものであり、レジスト材料にシリコン原子を所定の比率で含有させるものである。
次いで、本発明のレジスト材料を用いた露光方法について説明する。まず、本発明の露光方法に用いる露光装置を図1に示す。ここでは、縮小投影光学系を利用した露光装置を用いる。この図に示すように、この露光装置1は、露光光である極紫外線を照射する光源10と、光源10に対向配置され、光源10から照射された光を反射させる反射型マスク20が装着される動作ステージ21と、反射型マスク20で反射させた光を反射させる縮小投影光学系となる反射光学系30と被処理基板40を装着する動作ステージ41とを備えている。
下記構造式(2)で示すように、ポリエチレン樹脂を基本骨格とし、側鎖が−O−(SiHMe−CH2)10−SiMe2であるシリコン原子含有基が導入された高分子材料を用意した。
上述した実施例1、2の比較例として、ポリメチルメタクリレートからなる高分子材料を用意した。この高分子材料のシリコン含有比率φSiは0、密度ρは1.275g/cm3であり、上記数式(3)を満たしていない。そして、実施例1と同様に、この高分子材料とともに、重量比で3%の光酸発生剤と他の添加剤とを溶剤中に溶解させることでレジスト材料を調製した。
Claims (6)
- 極紫外線波長域での線吸収係数が1.7433μm-1以下となるように、レジスト材料にシリコン原子を含有させる
ことを特徴とするレジスト材料の製造方法。 - 極紫外線波長域での線吸収係数が1.7433μm-1以下となるように、レジスト材料にシリコン原子が含有されている
ことを特徴とするレジスト材料。 - 極紫外線波長域での線吸収係数が1.7433μm-1以下となるように、シリコン原子を含有させたレジスト材料を、基板上に塗布してレジスト層を形成する工程と、
極紫外線を照射して前記レジスト層を露光する工程と、
露光後の前記レジスト層を現像してパターンニングする工程とを有する
ことを特徴とする露光方法。 - 請求項4記載の露光方法において、
前記極紫外線の波長が12nm以上、16nm以下である
ことを特徴とする露光方法。 - 請求項4記載の露光方法において、
前記レジスト層の膜厚は、100nm以上、128nm以下である
ことを特徴とする露光方法。
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JP2006343608A JP2006343608A (ja) | 2006-12-21 |
JP4595688B2 true JP4595688B2 (ja) | 2010-12-08 |
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EP2729844B1 (en) | 2011-07-08 | 2021-07-28 | ASML Netherlands B.V. | Lithographic patterning process and resists to use therein |
US8968989B2 (en) * | 2011-11-21 | 2015-03-03 | Brewer Science Inc. | Assist layers for EUV lithography |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004352743A (ja) * | 2003-05-27 | 2004-12-16 | Shin Etsu Chem Co Ltd | 珪素含有高分子化合物、レジスト材料及びパターン形成方法 |
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JP2004352743A (ja) * | 2003-05-27 | 2004-12-16 | Shin Etsu Chem Co Ltd | 珪素含有高分子化合物、レジスト材料及びパターン形成方法 |
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