KR101676082B1 - 포토마스크 블랭크, 포토마스크의 제조 방법, 및 위상 시프트 마스크의 제조 방법 - Google Patents
포토마스크 블랭크, 포토마스크의 제조 방법, 및 위상 시프트 마스크의 제조 방법 Download PDFInfo
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- 241000283070 Equus zebra Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
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- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur 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
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- 238000012360 testing method Methods 0.000 description 1
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- 125000000125 tin containing inorganic group Chemical group 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
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- 239000010936 titanium Substances 0.000 description 1
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- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
-
- 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
-
- 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
- G03F1/20—Masks or mask blanks for imaging by charged particle beam [CPB] radiation, e.g. by electron beam; 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
- G03F1/26—Phase shift masks [PSM]; PSM blanks; Preparation thereof
- G03F1/30—Alternating PSM, e.g. Levenson-Shibuya PSM; Preparation thereof
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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
- G03F1/54—Absorbers, e.g. of opaque materials
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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
- G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
- G03F1/80—Etching
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- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Physical Vapour Deposition (AREA)
Abstract
투명 기판(1) 상에 설치되는 차광막(2)은 단층 구조 또는 다층 구조를 갖고, 적어도 1층은 주석을 함유하는 크롬계 재료로 성막되어 있다. 또한, 이 차광막(2)은 광학 농도가 2 이상 4 이하이며 반사 방지 기능을 갖는다. 차광막(2)을 구성하는 주석을 함유하는 크롬계 재료를 포함하는 층은 차광성을 저하시키지 않으면서, 산소를 포함하는 염소계 드라이 에칭시의 에칭 속도를 유의하게 향상시킬 수 있다. 이 때문에, 이와 같은 차광막에 패턴을 전사할 때, 레지스트 패턴이나 하드 마스크 패턴에 대한 부하가 경감되어 높은 정밀도로의 패턴 전사가 가능하게 된다.
Description
도 2는 바이너리 마스크의 제조 공정의 일 양태를 도시한 도면이다.
도 3은 레벤손형 마스크의 제조 공정의 일 양태를 도시한 도면이다.
도 4는 본 발명에 따른 포토마스크 블랭크의 구성의 다른 양태를 도시하는 단면도이다.
도 5는 바이너리 마스크의 제조 공정의 다른 양태를 도시한 도면이다.
도 6은 레벤손형 마스크의 제조 공정의 다른 양태를 도시한 도면이다.
도 7은 드라이 에칭에 이용하는 장치의 구성의 개략을 설명하기 위한 도면이다.
2 : 차광막
3 : 하드 마스크막
4 : 레지스트막
5 : 레지스트 패턴
11 : 챔버
12 : 대향 전극
13 : ICP 발생용 고주파 발신기
14 : 안테나 코일
15 : 시료
16 : 평면 전극
17 : RIE용 고주파 발신기
18 : 배기구
19 : 가스 도입구
Claims (9)
- 투명 기판 상에 단층 구조 또는 다층 구조의 차광막이 설치되어 있고,
상기 차광막은 광학 농도가 2 이상 4 이하이며 반사 방지 기능을 갖고,
상기 차광막은 크롬계 재료를 포함하는 층을 적어도 1층 구비하고,
상기 크롬계 재료를 포함하는 층 중 적어도 1층은 주석을 함유하는 크롬계 재료를 포함하며,
상기 주석을 함유하는 크롬계 재료는, 주석의 함유량이 크롬의 함유량에 대해 원자비로 0.01배 이상 2배 이하인 것을 특징으로 하는 포토마스크 블랭크. - 제1항에 있어서, 상기 차광막은 전층이 크롬계 재료를 포함하는 포토마스크 블랭크.
- 제2항에 있어서, 상기 차광막은 전층이 상기 주석을 함유하는 크롬계 재료를 포함하는 포토마스크 블랭크.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 크롬계 재료는 크롬 금속, 크롬 산화물, 크롬 질화물, 크롬 탄화물, 크롬 산화질화물, 크롬 산화탄화물, 크롬 질화탄화물, 크롬 산화질화탄화물 중 어느 하나이고, 상기 주석을 함유하는 크롬계 재료는 주석-크롬 금속, 주석-크롬 산화물, 주석-크롬 질화물, 주석-크롬 탄화물, 주석-크롬 산화질화물, 주석-크롬 산화탄화물, 주석-크롬 질화탄화물, 주석-크롬 산화질화탄화물 중 어느 하나인 포토마스크 블랭크.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 차광막 상에 하드 마스크막을 구비하고, 상기 하드 마스크막은 산소를 포함하는 염소계 드라이 에칭에 대하여 에칭 내성을 갖는 포토마스크 블랭크.
- 제5항에 있어서, 상기 하드 마스크막은 규소를 함유하고, 경(輕)원소로서 질소와 산소 중 적어도 하나를 더 함유하는 포토마스크 블랭크.
- 제1항 내지 제3항 중 어느 한 항에 기재된 블랭크를 이용한 포토마스크의 제조 방법이며,
상기 주석을 함유하는 크롬계 재료를 포함하는 층을 산소를 포함하는 염소계 드라이 에칭으로 에칭 가공하여 차광막 패턴을 형성하는 공정을 구비하고 있는, 포토마스크의 제조 방법. - 제1항 내지 제3항 중 어느 한 항에 기재된 블랭크를 이용한 위상 시프트 마스크의 제조 방법이며,
상기 주석을 함유하는 크롬계 재료를 포함하는 층을 산소를 포함하는 염소계 드라이 에칭으로 에칭 가공하여 차광막 패턴을 형성하는 공정을 구비하고,
상기 공정에 의해 얻어진 상기 차광막 패턴을 에칭 마스크로서 이용하여, 상기 차광막의 아래쪽에 설치된 위상 시프트막 또는 투명 기판을 불소계 드라이 에칭하여 상기 투명 기판 상에 패턴 전사를 행하는, 위상 시프트 마스크의 제조 방법. - 삭제
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JP5795991B2 (ja) | 2015-10-14 |
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TWI547752B (zh) | 2016-09-01 |
CN103424980A (zh) | 2013-12-04 |
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KR20130128338A (ko) | 2013-11-26 |
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