KR101253482B1 - 하프톤형 위상반전 블랭크 마스크와 하프톤형위상반전마스크 및 그의 제조방법 - Google Patents
하프톤형 위상반전 블랭크 마스크와 하프톤형위상반전마스크 및 그의 제조방법 Download PDFInfo
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- KR101253482B1 KR101253482B1 KR1020060032027A KR20060032027A KR101253482B1 KR 101253482 B1 KR101253482 B1 KR 101253482B1 KR 1020060032027 A KR1020060032027 A KR 1020060032027A KR 20060032027 A KR20060032027 A KR 20060032027A KR 101253482 B1 KR101253482 B1 KR 101253482B1
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- phase inversion
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- 230000010363 phase shift Effects 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 238000002834 transmittance Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 23
- 238000005530 etching Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 238000001312 dry etching Methods 0.000 claims description 11
- 239000011651 chromium Substances 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 150000001247 metal acetylides Chemical class 0.000 claims 2
- 150000004767 nitrides Chemical class 0.000 claims 2
- 230000003667 anti-reflective effect Effects 0.000 claims 1
- 238000000059 patterning Methods 0.000 claims 1
- 229910052723 transition metal Inorganic materials 0.000 claims 1
- 150000003624 transition metals Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 127
- 239000007789 gas Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 238000001039 wet etching Methods 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
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- 239000011572 manganese Substances 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
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- 239000011733 molybdenum Substances 0.000 description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052765 Lutetium Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052702 rhenium Inorganic materials 0.000 description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910052706 scandium Inorganic materials 0.000 description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 2
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 239000013077 target material Substances 0.000 description 2
- 229910052713 technetium Inorganic materials 0.000 description 2
- GKLVYJBZJHMRIY-UHFFFAOYSA-N technetium atom Chemical compound [Tc] GKLVYJBZJHMRIY-UHFFFAOYSA-N 0.000 description 2
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 2
- 229910052716 thallium Inorganic materials 0.000 description 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F1/26—Phase shift masks [PSM]; PSM blanks; Preparation thereof
- G03F1/32—Attenuating PSM [att-PSM], e.g. halftone PSM or PSM having semi-transparent phase shift portion; Preparation thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F1/38—Masks having auxiliary features, e.g. special coatings or marks for alignment or testing; Preparation thereof
- G03F1/46—Antireflective coatings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
Abstract
Description
Claims (18)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 투명기판 위에 두께가 10 ~ 500Å이고, 노광광의 파장에서 10 ~ 90%의 투과율을 가지는 식각저지막을 형성하는 단계;상기 식각저지막 상에 위상반전막, 차광막, 반사방지막을 순차적으로 형성하는 단계; 및상기 반사방지막, 상기 차광막, 상기 위상반전막 및 상기 식각저지막을 패터닝하는 단계를 포함하며, 상기 식각저지막은 상기 위상반전막 하부로 언더컷이 형성되도록 패터닝하는 하프톤형 위상반전 블랭크 마스크의 제조 방법.
- 제 9항에 있어서,상기 식각저지막과 상기 위상반전막은 통과하는 노광광의 위상이 160 ~ 200° 반전되게 형성하는 것을 특징으로 하는 하프톤형 위상반전 블랭크 마스크의 제조 방법.
- 투명기판 상에 배치된 식각저지막 패턴 및 위상반전막 패턴을 포함하는 하프톤형 위상반전 마스크로서,상기 식각저지막 패턴은 상기 위상반전막 패턴의 하부에 배치되며, 상기 위상반전막 패턴의 가장자리 부분에서 언더컷 형상을 갖는 하프톤형 위상반전 마스크.
- 삭제
- 제 11항에 있어서,상기 식각저지막은, 두께가 10 ~ 500Å이고, 노광광의 파장에서 10 ~ 90%의 투과율을 갖는 것을 특징으로 하는 하프톤형 위상반전 마스크.
- 제 11항에 있어서,상기 식각저지막은 차광막 및 반사방지막과 동일한 계열의 물질로 이루어진 것을 특징으로 하는 하프톤형 위상반전 마스크.
- 제 14항에 있어서,상기 식각저지막, 차광막 및 반사방지막을 이루는 물질은, 크롬을 모체로 산화물, 질화물, 탄화물 중에서 선택된 1종 이상을 포함하는 것을 특징으로 하는 하프톤형 위상반전 마스크.
- 제 11항에 있어서,상기 위상반전막은, 실리콘과 전이금속이 혼합된 물질을 모체로 산화물, 질화물, 탄화물 중에서 선택된 1종 이상을 포함하는 것을 특징으로 하는 하프톤형 위상반전 마스크.
- 제 11항에 있어서,상기 식각저지막은, 상기 위상반전막의 건식 식각시 사용되는 건식 가스에 의해 식각이 되지 않는 것을 특징으로 하는 하프톤형 위상반전 마스크.
- 제 9항에 있어서,상기 식각저지막과 상기 위상반전막은 건식 식각시 사용되는 식각 가스에 대하여 상호 식각선택비를 갖도록 형성하는 것을 특징으로 하는 하프톤형 위상반전 마스크의 제조 방법.
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KR1020060032027A KR101253482B1 (ko) | 2006-04-07 | 2006-04-07 | 하프톤형 위상반전 블랭크 마스크와 하프톤형위상반전마스크 및 그의 제조방법 |
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KR1020060032027A KR101253482B1 (ko) | 2006-04-07 | 2006-04-07 | 하프톤형 위상반전 블랭크 마스크와 하프톤형위상반전마스크 및 그의 제조방법 |
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KR20070100572A KR20070100572A (ko) | 2007-10-11 |
KR101253482B1 true KR101253482B1 (ko) | 2013-04-11 |
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KR102229123B1 (ko) * | 2020-08-31 | 2021-03-18 | 에스케이씨솔믹스 주식회사 | 블랭크 마스크 및 이를 이용한 포토마스크 |
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KR100940271B1 (ko) * | 2008-04-07 | 2010-02-04 | 주식회사 하이닉스반도체 | 하프톤 위상반전마스크의 제조방법 |
JP7037919B2 (ja) * | 2017-11-14 | 2022-03-17 | アルバック成膜株式会社 | マスクブランク、ハーフトーンマスクおよびその製造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0798493A (ja) * | 1993-09-28 | 1995-04-11 | Toppan Printing Co Ltd | 位相シフトマスク及びその製造方法 |
KR20000002912A (ko) * | 1998-06-24 | 2000-01-15 | 김영환 | 위상 반전 마스크의 형성 방법 |
KR20020050168A (ko) * | 2000-12-19 | 2002-06-26 | 야마나까 마모루, 스즈키 히로시 | 그레이톤 마스크 및 그 제조 방법 |
KR20040094809A (ko) * | 2002-04-12 | 2004-11-10 | 인터내셔널 비지네스 머신즈 코포레이션 | 감쇠된 매입형 위상변이 포토마스크 블랭크 |
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2006
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0798493A (ja) * | 1993-09-28 | 1995-04-11 | Toppan Printing Co Ltd | 位相シフトマスク及びその製造方法 |
KR20000002912A (ko) * | 1998-06-24 | 2000-01-15 | 김영환 | 위상 반전 마스크의 형성 방법 |
KR20020050168A (ko) * | 2000-12-19 | 2002-06-26 | 야마나까 마모루, 스즈키 히로시 | 그레이톤 마스크 및 그 제조 방법 |
KR20040094809A (ko) * | 2002-04-12 | 2004-11-10 | 인터내셔널 비지네스 머신즈 코포레이션 | 감쇠된 매입형 위상변이 포토마스크 블랭크 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102229123B1 (ko) * | 2020-08-31 | 2021-03-18 | 에스케이씨솔믹스 주식회사 | 블랭크 마스크 및 이를 이용한 포토마스크 |
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