JP5507876B2 - 反射型マスクブランク及び反射型マスクの製造方法 - Google Patents
反射型マスクブランク及び反射型マスクの製造方法 Download PDFInfo
- Publication number
- JP5507876B2 JP5507876B2 JP2009098621A JP2009098621A JP5507876B2 JP 5507876 B2 JP5507876 B2 JP 5507876B2 JP 2009098621 A JP2009098621 A JP 2009098621A JP 2009098621 A JP2009098621 A JP 2009098621A JP 5507876 B2 JP5507876 B2 JP 5507876B2
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- film
- reflective mask
- mask blank
- pattern
- material containing
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000006096 absorbing agent Substances 0.000 claims description 96
- 239000000463 material Substances 0.000 claims description 77
- 229910052715 tantalum Inorganic materials 0.000 claims description 66
- 239000000758 substrate Substances 0.000 claims description 44
- 229910052757 nitrogen Inorganic materials 0.000 claims description 40
- 229910052796 boron Inorganic materials 0.000 claims description 39
- 238000012546 transfer Methods 0.000 claims description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 20
- 239000011651 chromium Substances 0.000 claims description 13
- 150000004767 nitrides Chemical class 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 238000001900 extreme ultraviolet lithography Methods 0.000 claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- 229910003071 TaON Inorganic materials 0.000 claims description 2
- XTDAIYZKROTZLD-UHFFFAOYSA-N boranylidynetantalum Chemical compound [Ta]#B XTDAIYZKROTZLD-UHFFFAOYSA-N 0.000 claims 1
- 239000010408 film Substances 0.000 description 347
- 239000010410 layer Substances 0.000 description 86
- 239000000203 mixture Substances 0.000 description 30
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 20
- 229910052760 oxygen Inorganic materials 0.000 description 17
- 230000000694 effects Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 239000004065 semiconductor Substances 0.000 description 12
- 238000007689 inspection Methods 0.000 description 11
- 238000001755 magnetron sputter deposition Methods 0.000 description 11
- 238000004544 sputter deposition Methods 0.000 description 11
- 229910052786 argon Inorganic materials 0.000 description 10
- 238000005530 etching Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 230000000737 periodic effect Effects 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 238000002834 transmittance Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 229910004535 TaBN Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000001659 ion-beam spectroscopy Methods 0.000 description 4
- 230000007261 regionalization Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000001312 dry etching Methods 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005477 sputtering target Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- ITWBWJFEJCHKSN-UHFFFAOYSA-N 1,4,7-triazonane Chemical compound C1CNCCNCCN1 ITWBWJFEJCHKSN-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007687 exposure technique Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- -1 oxynitrides Chemical class 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000001552 radio frequency sputter deposition Methods 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 150000003304 ruthenium compounds Chemical class 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000500 β-quartz Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- G03F1/22—Masks or mask blanks for imaging by radiation of 100nm or shorter wavelength, e.g. X-ray masks, extreme ultraviolet [EUV] masks; Preparation thereof
- G03F1/24—Reflection masks; Preparation thereof
-
- 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
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0337—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009098621A JP5507876B2 (ja) | 2009-04-15 | 2009-04-15 | 反射型マスクブランク及び反射型マスクの製造方法 |
| KR1020100034355A KR101800882B1 (ko) | 2009-04-15 | 2010-04-14 | 반사형 마스크 블랭크 및 반사형 마스크의 제조 방법 |
| US12/761,019 US8329361B2 (en) | 2009-04-15 | 2010-04-15 | Reflective mask blank, method of manufacturing a reflective mask blank and method of manufacturing a reflective mask |
| TW099111856A TWI454833B (zh) | 2009-04-15 | 2010-04-15 | 反射型光罩基底及反射型光罩之製造方法 |
| TW103128722A TWI486702B (zh) | 2009-04-15 | 2010-04-15 | 反射型光罩、反射型光罩之製造方法及半導體裝置之製造方法 |
| US13/675,169 US8709685B2 (en) | 2009-04-15 | 2012-11-13 | Reflective mask blank and method of manufacturing a reflective mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009098621A JP5507876B2 (ja) | 2009-04-15 | 2009-04-15 | 反射型マスクブランク及び反射型マスクの製造方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010251490A JP2010251490A (ja) | 2010-11-04 |
| JP2010251490A5 JP2010251490A5 (enExample) | 2012-06-07 |
| JP5507876B2 true JP5507876B2 (ja) | 2014-05-28 |
Family
ID=42981227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009098621A Active JP5507876B2 (ja) | 2009-04-15 | 2009-04-15 | 反射型マスクブランク及び反射型マスクの製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US8329361B2 (enExample) |
| JP (1) | JP5507876B2 (enExample) |
| KR (1) | KR101800882B1 (enExample) |
| TW (2) | TWI454833B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190017667A (ko) | 2017-08-10 | 2019-02-20 | 에이지씨 가부시키가이샤 | 반사형 마스크 블랭크 및 반사형 마스크 |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5275275B2 (ja) | 2010-02-25 | 2013-08-28 | 株式会社東芝 | 基板処理方法、euvマスクの製造方法、euvマスクおよび半導体装置の製造方法 |
| JP5671306B2 (ja) | 2010-11-10 | 2015-02-18 | カヤバ工業株式会社 | サスペンション装置 |
| WO2012105508A1 (ja) | 2011-02-01 | 2012-08-09 | 旭硝子株式会社 | Euvリソグラフィ用反射型マスクブランク |
| US8601404B2 (en) * | 2011-03-14 | 2013-12-03 | Synopsys, Inc. | Modeling EUV lithography shadowing effect |
| JP6125772B2 (ja) | 2011-09-28 | 2017-05-10 | Hoya株式会社 | 反射型マスクブランク、反射型マスクおよび反射型マスクの製造方法 |
| KR101477469B1 (ko) | 2012-03-30 | 2014-12-29 | 호야 가부시키가이샤 | 마스크 블랭크용 기판, 다층 반사막 부착 기판, 투과형 마스크 블랭크, 반사형 마스크 블랭크, 투과형 마스크, 반사형 마스크 및 반도체 장치의 제조 방법 |
| US9798050B2 (en) * | 2013-09-27 | 2017-10-24 | Hoya Corporation | Substrate with multilayer reflective film, mask blank, transfer mask and method of manufacturing semiconductor device |
| KR20150066966A (ko) | 2013-12-09 | 2015-06-17 | 삼성전자주식회사 | 포토마스크, 포토마스크의 에러 보정 방법, 포토마스크를 이용하여 제조된 집적회로 소자 및 그 제조 방법 |
| JP6301127B2 (ja) | 2013-12-25 | 2018-03-28 | Hoya株式会社 | 反射型マスクブランク及び反射型マスク、並びに半導体装置の製造方法 |
| US9766536B2 (en) | 2015-07-17 | 2017-09-19 | Taiwan Semiconductor Manufacturing Company, Ltd. | Mask with multilayer structure and manufacturing method by using the same |
| US10276662B2 (en) | 2016-05-31 | 2019-04-30 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of forming contact trench |
| JP6855190B2 (ja) * | 2016-08-26 | 2021-04-07 | Hoya株式会社 | 反射型マスク、並びに反射型マスクブランク及び半導体装置の製造方法 |
| US10553428B2 (en) * | 2017-08-22 | 2020-02-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Reflection mode photomask and fabrication method therefore |
| US10802393B2 (en) * | 2017-10-16 | 2020-10-13 | Globalfoundries Inc. | Extreme ultraviolet (EUV) lithography mask |
| JP6556885B2 (ja) * | 2018-02-22 | 2019-08-07 | Hoya株式会社 | 反射型マスクブランク及び反射型マスク、並びに半導体装置の製造方法 |
| US11221554B2 (en) | 2020-01-17 | 2022-01-11 | Taiwan Semiconductor Manufacturing Co., Ltd. | EUV masks to prevent carbon contamination |
| JP7117445B1 (ja) | 2021-12-15 | 2022-08-12 | 株式会社トッパンフォトマスク | 反射型フォトマスクブランク及び反射型フォトマスク |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08213303A (ja) | 1995-02-03 | 1996-08-20 | Nikon Corp | 反射型x線マスク及びその製造法 |
| JP4397496B2 (ja) * | 2000-02-25 | 2010-01-13 | Okiセミコンダクタ株式会社 | 反射型露光マスクおよびeuv露光装置 |
| JP5371162B2 (ja) | 2000-10-13 | 2013-12-18 | 三星電子株式会社 | 反射型フォトマスク |
| JP2002246299A (ja) * | 2001-02-20 | 2002-08-30 | Oki Electric Ind Co Ltd | 反射型露光マスク、反射型露光マスクの製造方法、及び半導体素子 |
| US6653053B2 (en) * | 2001-08-27 | 2003-11-25 | Motorola, Inc. | Method of forming a pattern on a semiconductor wafer using an attenuated phase shifting reflective mask |
| US7390596B2 (en) | 2002-04-11 | 2008-06-24 | Hoya Corporation | Reflection type mask blank and reflection type mask and production methods for them |
| JP3806702B2 (ja) * | 2002-04-11 | 2006-08-09 | Hoya株式会社 | 反射型マスクブランクス及び反射型マスク及びそれらの製造方法並びに半導体の製造方法 |
| KR100542464B1 (ko) * | 2003-11-20 | 2006-01-11 | 학교법인 한양학원 | 원자력간 현미경 리소그래피 기술을 이용한 극자외선 노광공정용 반사형 다층 박막 미러의 제조방법 |
| JP2006040050A (ja) | 2004-07-28 | 2006-02-09 | Olympus Corp | 再生装置、カメラおよび再生装置の表示切換方法 |
| US20060222961A1 (en) * | 2005-03-31 | 2006-10-05 | Pei-Yang Yan | Leaky absorber for extreme ultraviolet mask |
| WO2008084680A1 (ja) * | 2006-12-27 | 2008-07-17 | Asahi Glass Company, Limited | Euvリソグラフィ用反射型マスクブランク |
| JP5018789B2 (ja) | 2007-01-31 | 2012-09-05 | 旭硝子株式会社 | Euvリソグラフィ用反射型マスクブランク |
| JP4910820B2 (ja) * | 2007-03-27 | 2012-04-04 | 凸版印刷株式会社 | 極端紫外線露光用マスク、極端紫外線露光用マスクブランク、極端紫外線露光用マスクの製造方法及びリソグラフィ方法 |
-
2009
- 2009-04-15 JP JP2009098621A patent/JP5507876B2/ja active Active
-
2010
- 2010-04-14 KR KR1020100034355A patent/KR101800882B1/ko active Active
- 2010-04-15 TW TW099111856A patent/TWI454833B/zh active
- 2010-04-15 US US12/761,019 patent/US8329361B2/en active Active
- 2010-04-15 TW TW103128722A patent/TWI486702B/zh active
-
2012
- 2012-11-13 US US13/675,169 patent/US8709685B2/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190017667A (ko) | 2017-08-10 | 2019-02-20 | 에이지씨 가부시키가이샤 | 반사형 마스크 블랭크 및 반사형 마스크 |
| US11150550B2 (en) | 2017-08-10 | 2021-10-19 | AGC Inc. | Reflective mask blank and reflective mask |
| US11703751B2 (en) | 2017-08-10 | 2023-07-18 | AGC Inc. | Reflective mask blank and reflective mask |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI454833B (zh) | 2014-10-01 |
| US8329361B2 (en) | 2012-12-11 |
| JP2010251490A (ja) | 2010-11-04 |
| KR101800882B1 (ko) | 2017-11-23 |
| TW201100951A (en) | 2011-01-01 |
| US20130071779A1 (en) | 2013-03-21 |
| US20100266938A1 (en) | 2010-10-21 |
| TWI486702B (zh) | 2015-06-01 |
| KR20100114472A (ko) | 2010-10-25 |
| TW201445244A (zh) | 2014-12-01 |
| US8709685B2 (en) | 2014-04-29 |
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