JP7320039B2 - 多層グラフェンの直接成長方法およびそれを用いた極紫外線露光用ペリクルの製造方法 - Google Patents
多層グラフェンの直接成長方法およびそれを用いた極紫外線露光用ペリクルの製造方法 Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 149
- 229910021389 graphene Inorganic materials 0.000 title claims description 142
- 238000000034 method Methods 0.000 title claims description 57
- 238000004519 manufacturing process Methods 0.000 title claims description 38
- 239000010410 layer Substances 0.000 claims description 260
- 239000012792 core layer Substances 0.000 claims description 60
- 239000002184 metal Substances 0.000 claims description 56
- 229910052751 metal Inorganic materials 0.000 claims description 56
- 239000000758 substrate Substances 0.000 claims description 55
- 239000003054 catalyst Substances 0.000 claims description 50
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 44
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 43
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 20
- 229910052710 silicon Inorganic materials 0.000 claims description 20
- 239000010703 silicon Substances 0.000 claims description 20
- 239000011229 interlayer Substances 0.000 claims description 13
- 238000000231 atomic layer deposition Methods 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000004544 sputter deposition Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 4
- 238000001659 ion-beam spectroscopy Methods 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910004205 SiNX Inorganic materials 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 238000002834 transmittance Methods 0.000 description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 238000001069 Raman spectroscopy Methods 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/62—Pellicles, e.g. pellicle assemblies, e.g. having membrane on support frame; Preparation thereof
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- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/62—Pellicles, e.g. pellicle assemblies, e.g. having membrane on support frame; Preparation thereof
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- C—CHEMISTRY; METALLURGY
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- C01B32/184—Preparation
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/462—Ruthenium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
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- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
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- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/22—Masks or mask blanks for imaging by radiation of 100nm or shorter wavelength, e.g. X-ray masks, extreme ultraviolet [EUV] masks; Preparation thereof
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- G—PHYSICS
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/70983—Optical system protection, e.g. pellicles or removable covers for protection of mask
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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Description
図1は、本発明による直接成長した多層グラフェンを用いた極紫外線露光用ペリクルを示す断面図である。
コア層20を形成する多層グラフェンは、支持層13上に形成される少数層グラフェンを基盤として熱処理を用いた層間交換により直接成長させて形成する。本発明による多層グラフェンの直接成長方法については、ペリクル100の製造方法において説明することとする。
以下、このような本発明によるペリクル100の製造方法について図2および図3を参照して説明する。ここで、図2は、本発明による多層グラフェンの直接成長方法を用いた極紫外線露光用ペリクルの製造方法を示すフローチャートである。また、図3は、図2のコア層を形成する段階を示す詳細フローチャートである。
11 シリコン基板
13 支持層
15 開放部
20 コア層
21 少数層グラフェン
23 多層グラフェン
25 金属触媒層
27 非晶質炭素層
30 キャッピング層
100 極紫外線露光用ペリクル
Claims (15)
- 窒化シリコン基板上に少数層グラフェンを形成する段階と、
前記少数層グラフェン上に金属触媒層を形成する段階と、
前記金属触媒層上に非晶質炭素層を形成する段階と、
前記少数層グラフェンをシード層として熱処理を用いた前記金属触媒層と前記非晶質炭素層間の層間交換により前記非晶質炭素層の炭素が前記金属触媒層を通過して前記少数層グラフェン上に移動して前記少数層グラフェンから多層グラフェンを直接成長させる段階と、を含む極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。 - 前記窒化シリコン基板は、極紫外線露光用ペリクルに使用され、シリコン基板と、前記シリコン基板上に形成された窒化シリコン素材の支持層と、を含み、
前記支持層上に前記少数層グラフェンが形成されることを特徴とする請求項1に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。 - 前記少数層グラフェンは、5層以下のグラフェンであることを特徴とする請求項2に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。
- 前記少数層グラフェンを形成する段階で、
前記少数層グラフェンを前記支持層上に転写して形成することを特徴とする請求項3に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。 - 前記少数層グラフェンは、熱処理過程で前記金属触媒層の金属が前記シリコン基板に拡散するのを防止する拡散防止層であることを特徴とする請求項3に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。
- 前記金属触媒層の素材は、Ni、Co、RuまたはPtを含むことを特徴とする請求項3に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。
- 前記金属触媒層を形成する段階で、
前記金属触媒層をスパッタリングまたは電子ビーム蒸着法(e-beam evaporation method)で10nm~100nmの厚さで形成することを特徴とする請求項6に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。 - 前記非晶質炭素層を形成する段階で、
前記非晶質炭素層をスパッタリングで10nm~100nmの厚さで形成することを特徴とする請求項3に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。 - 前記多層グラフェンを直接成長させる段階で、
前記熱処理は、水素ガスおよび不活性ガスの雰囲気で500~1100℃で10分~10時間進行され、前記不活性ガスは、窒素、アルゴンおよびヘリウムのうち少なくとも一つを含むことを特徴とする請求項1に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。 - 前記多層グラフェンを直接成長させる段階後に行われる、
前記多層グラフェン上の前記金属触媒層を除去する段階をさらに含むことを特徴とする請求項1に記載の極紫外線露光用ペリクルに使用される多層グラフェンの直接成長方法。 - 窒化シリコン基板上に多層グラフェンを直接成長させてコア層を形成する段階と、
前記コア層上にキャッピング層を形成する段階と、
前記コア層下の前記窒化シリコン基板の中心部分を除去して、前記コア層が露出する開放部を形成する段階と、を含み、
前記コア層を形成する段階は、
前記窒化シリコン基板上に少数層グラフェンを形成する段階と、
前記少数層グラフェン上に金属触媒層を形成する段階と、
前記金属触媒層上に非晶質炭素層を形成する段階と、
前記少数層グラフェンをシード層として熱処理を用いた前記金属触媒層と前記非晶質炭素層間の層間交換により前記非晶質炭素層の炭素が前記金属触媒層を通過して前記少数層グラフェン上に移動して前記少数層グラフェンから多層グラフェンを直接成長させる段階と、
前記多層グラフェン上の前記金属触媒層を除去する段階と、を含む多層グラフェンの直接成長方法を用いた極紫外線露光用ペリクルの製造方法。 - 前記窒化シリコン基板は、シリコン基板と、前記シリコン基板上に形成された窒化シリコン素材の支持層と、を含み、
前記少数層グラフェンを形成する段階で、前記支持層上に前記少数層グラフェンが形成され、
前記開放部を形成する段階で、前記支持層下の前記シリコン基板の中心部分を除去して、前記開放部を形成することを特徴とする請求項11に記載の多層グラフェンの直接成長方法を用いた極紫外線露光用ペリクルの製造方法。 - 前記少数層グラフェンは、5層以下のグラフェンであり、前記金属触媒層の金属が前記シリコン基板に拡散するのを防止する拡散防止層であることを特徴とする請求項12に記載の多層グラフェンの直接成長方法を用いた極紫外線露光用ペリクルの製造方法。
- 前記キャッピング層の素材は、SiNx、BN、ZrBx(2≦x<16)、ZrBxSiy(x≧2、y≧2)、Si-BNまたはZrを含むことを特徴とする請求項11に記載の多層グラフェンの直接成長方法を用いた極紫外線露光用ペリクルの製造方法。
- 前記キャッピング層を形成する段階で、
前記キャッピング層をALD(atomic layer deposition)またはIBSD(ion beam sputtering deposition)工程で前記コア層上に1nm~5nmの厚さで形成することを特徴とする請求項14に記載の多層グラフェンの直接成長方法を用いた極紫外線露光用ペリクルの製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20230171906A (ko) | 2023-04-03 | 2023-12-21 | 포항공과대학교 산학협력단 | Euv 리소그래피용 펠리클 구조체, 및 그 제조 방법, 그리고 제조 장치, 그리고 이를 포함하는 euv 리소그래피 장치 |
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