JP6952711B2 - ターゲットデザイン方法、製造方法及び計量ターゲット - Google Patents
ターゲットデザイン方法、製造方法及び計量ターゲット Download PDFInfo
- Publication number
- JP6952711B2 JP6952711B2 JP2018552155A JP2018552155A JP6952711B2 JP 6952711 B2 JP6952711 B2 JP 6952711B2 JP 2018552155 A JP2018552155 A JP 2018552155A JP 2018552155 A JP2018552155 A JP 2018552155A JP 6952711 B2 JP6952711 B2 JP 6952711B2
- Authority
- JP
- Japan
- Prior art keywords
- target
- pitch
- design
- hybrid
- metering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/70681—Metrology strategies
- G03F7/70683—Mark designs
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
- G06F30/398—Design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or finite element methods [FEM]
-
- 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
- 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
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
-
- 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
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70491—Information management, e.g. software; Active and passive control, e.g. details of controlling exposure processes or exposure tool monitoring processes
- G03F7/705—Modelling or simulating from physical phenomena up to complete wafer processes or whole workflow in wafer productions
-
- 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
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/70616—Monitoring the printed patterns
-
- 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
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/70616—Monitoring the printed patterns
- G03F7/70625—Dimensions, e.g. line width, critical dimension [CD], profile, sidewall angle or edge roughness
-
- 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
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/70616—Monitoring the printed patterns
- G03F7/70633—Overlay, i.e. relative alignment between patterns printed by separate exposures in different layers, or in the same layer in multiple exposures or stitching
-
- 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
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/706843—Metrology apparatus
- G03F7/706849—Irradiation branch, e.g. optical system details, illumination mode or polarisation control
-
- 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
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
- G03F9/70—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
- G03F9/7073—Alignment marks and their environment
- G03F9/7076—Mark details, e.g. phase grating mark, temporary mark
-
- 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
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
- G03F9/70—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
- G03F9/7088—Alignment mark detection, e.g. TTR, TTL, off-axis detection, array detector, video detection
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Theoretical Computer Science (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Multimedia (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662318086P | 2016-04-04 | 2016-04-04 | |
| US62/318,086 | 2016-04-04 | ||
| PCT/US2016/060626 WO2017176314A1 (en) | 2016-04-04 | 2016-11-04 | Process compatibility improvement by fill factor modulation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019517017A JP2019517017A (ja) | 2019-06-20 |
| JP2019517017A5 JP2019517017A5 (OSRAM) | 2019-12-12 |
| JP6952711B2 true JP6952711B2 (ja) | 2021-10-20 |
Family
ID=60001339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018552155A Active JP6952711B2 (ja) | 2016-04-04 | 2016-11-04 | ターゲットデザイン方法、製造方法及び計量ターゲット |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10579768B2 (OSRAM) |
| EP (1) | EP3440511B1 (OSRAM) |
| JP (1) | JP6952711B2 (OSRAM) |
| KR (1) | KR102788661B1 (OSRAM) |
| CN (1) | CN109073981B (OSRAM) |
| IL (1) | IL261879B (OSRAM) |
| TW (1) | TWI710860B (OSRAM) |
| WO (1) | WO2017176314A1 (OSRAM) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018147938A1 (en) * | 2017-02-10 | 2018-08-16 | Kla-Tencor Corporation | Mitigation of inaccuracies related to grating asymmetries in scatterometry measurements |
| KR102447611B1 (ko) | 2017-06-06 | 2022-09-26 | 케이엘에이 코포레이션 | 레티클 최적화 알고리즘들 및 최적의 타겟 설계 |
| US10628544B2 (en) | 2017-09-25 | 2020-04-21 | International Business Machines Corporation | Optimizing integrated circuit designs based on interactions between multiple integration design rules |
| US20190250504A1 (en) * | 2017-10-23 | 2019-08-15 | Kla-Tencor Corporation | Reduction or elimination of pattern placement error in metrology measurements |
| JP7225388B2 (ja) * | 2018-10-30 | 2023-02-20 | ケーエルエー コーポレイション | 計量ターゲット |
| CN113439240A (zh) * | 2019-02-19 | 2021-09-24 | Asml控股股份有限公司 | 量测系统、光刻设备和方法 |
| US11378394B1 (en) * | 2020-12-11 | 2022-07-05 | Kla Corporation | On-the-fly scatterometry overlay metrology target |
| KR102871169B1 (ko) * | 2021-12-17 | 2025-10-14 | 케이엘에이 코포레이션 | 개선된 타겟 배치 정확성을 위한 오버레이 타겟 설계 |
| US12411420B2 (en) * | 2023-09-29 | 2025-09-09 | Kla Corporation | Small in-die target design for overlay measurement |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6303252B1 (en) | 1999-12-27 | 2001-10-16 | United Microelectronics Corp. | Reticle having assist feature between semi-dense lines |
| TW512424B (en) * | 2000-05-01 | 2002-12-01 | Asml Masktools Bv | Hybrid phase-shift mask |
| TW479157B (en) | 2000-07-21 | 2002-03-11 | Asm Lithography Bv | Mask for use in a lithographic projection apparatus and method of making the same |
| US6433878B1 (en) * | 2001-01-29 | 2002-08-13 | Timbre Technology, Inc. | Method and apparatus for the determination of mask rules using scatterometry |
| US6519760B2 (en) * | 2001-02-28 | 2003-02-11 | Asml Masktools, B.V. | Method and apparatus for minimizing optical proximity effects |
| SG108975A1 (en) | 2003-07-11 | 2005-02-28 | Asml Netherlands Bv | Marker structure for alignment or overlay to correct pattern induced displacement, mask pattern for defining such a marker structure and lithographic projection apparatus using such a mask pattern |
| SG111289A1 (en) * | 2003-11-05 | 2005-05-30 | Asml Masktools Bv | A method for performing transmission tuning of a mask pattern to improve process latitude |
| CN100442144C (zh) * | 2003-12-19 | 2008-12-10 | 国际商业机器公司 | 微分临界尺寸和覆盖计量装置以及测量方法 |
| JP4634849B2 (ja) * | 2005-04-12 | 2011-02-16 | 株式会社東芝 | 集積回路のパターンレイアウト、フォトマスク、半導体装置の製造方法、及びデータ作成方法 |
| US7749662B2 (en) * | 2005-10-07 | 2010-07-06 | Globalfoundries Inc. | Process margin using discrete assist features |
| US7925486B2 (en) | 2006-03-14 | 2011-04-12 | Kla-Tencor Technologies Corp. | Computer-implemented methods, carrier media, and systems for creating a metrology target structure design for a reticle layout |
| US7911612B2 (en) | 2007-06-13 | 2011-03-22 | Asml Netherlands B.V. | Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method |
| KR100880232B1 (ko) | 2007-08-20 | 2009-01-28 | 주식회사 동부하이텍 | 미세 마스크 및 그를 이용한 패턴 형성 방법 |
| JP2009109581A (ja) * | 2007-10-26 | 2009-05-21 | Toshiba Corp | 半導体装置の製造方法 |
| JP5529391B2 (ja) * | 2008-03-21 | 2014-06-25 | ルネサスエレクトロニクス株式会社 | ハーフトーン型位相シフトマスク、そのハーフトーン型位相シフトマスクを有する半導体装置の製造装置、およびそのハーフトーン型位相シフトマスクを用いた半導体装置の製造方法 |
| JP5627394B2 (ja) * | 2010-10-29 | 2014-11-19 | キヤノン株式会社 | マスクのデータ及び露光条件を決定するためのプログラム、決定方法、マスク製造方法、露光方法及びデバイス製造方法 |
| US8913237B2 (en) * | 2012-06-26 | 2014-12-16 | Kla-Tencor Corporation | Device-like scatterometry overlay targets |
| WO2015009619A1 (en) * | 2013-07-15 | 2015-01-22 | Kla-Tencor Corporation | Producing resist layers using fine segmentation |
| US9053284B2 (en) * | 2013-09-04 | 2015-06-09 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method and system for overlay control |
| US10001711B2 (en) * | 2013-12-17 | 2018-06-19 | Asml Netherlands B.V. | Inspection method, lithographic apparatus, mask and substrate |
| KR102169557B1 (ko) * | 2014-01-15 | 2020-10-26 | 케이엘에이 코포레이션 | 다중 패터닝된 타겟에서의 피치 워크의 오버레이 측정 |
| WO2016030255A2 (en) * | 2014-08-29 | 2016-03-03 | Asml Netherlands B.V. | Metrology method, target and substrate |
| NL2017300A (en) * | 2015-08-27 | 2017-03-01 | Asml Netherlands Bv | Method and apparatus for measuring a parameter of a lithographic process, substrate and patterning devices for use in the method |
| KR102217209B1 (ko) * | 2015-12-17 | 2021-02-19 | 에이에스엠엘 네델란즈 비.브이. | 메트롤로지 장치의 조정 또는 측정 타겟의 특성에 기초한 측정 |
-
2016
- 2016-11-04 CN CN201680084437.5A patent/CN109073981B/zh active Active
- 2016-11-04 JP JP2018552155A patent/JP6952711B2/ja active Active
- 2016-11-04 EP EP16898139.7A patent/EP3440511B1/en active Active
- 2016-11-04 WO PCT/US2016/060626 patent/WO2017176314A1/en not_active Ceased
- 2016-11-04 KR KR1020187031153A patent/KR102788661B1/ko active Active
- 2016-11-04 US US15/502,950 patent/US10579768B2/en active Active
-
2017
- 2017-03-31 TW TW106110992A patent/TWI710860B/zh active
-
2018
- 2018-09-20 IL IL261879A patent/IL261879B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| US10579768B2 (en) | 2020-03-03 |
| KR102788661B1 (ko) | 2025-03-28 |
| EP3440511B1 (en) | 2024-03-06 |
| EP3440511A1 (en) | 2019-02-13 |
| JP2019517017A (ja) | 2019-06-20 |
| CN109073981B (zh) | 2021-09-24 |
| US20180157784A1 (en) | 2018-06-07 |
| TW201800873A (zh) | 2018-01-01 |
| IL261879B (en) | 2021-01-31 |
| TWI710860B (zh) | 2020-11-21 |
| CN109073981A (zh) | 2018-12-21 |
| EP3440511A4 (en) | 2019-12-18 |
| IL261879A (en) | 2018-10-31 |
| WO2017176314A1 (en) | 2017-10-12 |
| KR20180123156A (ko) | 2018-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6952711B2 (ja) | ターゲットデザイン方法、製造方法及び計量ターゲット | |
| Rizvi | Handbook of photomask manufacturing technology | |
| CN109844647B (zh) | 基于衍射的聚焦度量 | |
| JP5078543B2 (ja) | 階層opcのための局所的な色付け | |
| US5883813A (en) | Automatic generation of phase shift masks using net coloring | |
| US20180074395A1 (en) | Euv mask for monitoring focus in euv lithography | |
| CN106164733B (zh) | 使用散射术计量的焦点测量 | |
| JPH10125570A (ja) | 位相エッジ位相シフト設計における相互接続の設計競合を排除する方法 | |
| JP2008166777A (ja) | リソグラフィ装置およびデバイス製造方法 | |
| JP2022153592A (ja) | ホットスポット及びプロセスウィンドウ監視装置 | |
| US8103979B2 (en) | System for generating and optimizing mask assist features based on hybrid (model and rules) methodology | |
| US9213233B2 (en) | Photolithography scattering bar structure and method | |
| US9753364B2 (en) | Producing resist layers using fine segmentation | |
| US6757886B2 (en) | Alternating phase shift mask design with optimized phase shapes | |
| CN101305319A (zh) | 光掩模及用来在光掩模上形成非正交特征的方法 | |
| Zable et al. | GPU-accelerated inline linearity correction: pixel-level dose correction (PLDC) for the MBM-1000 | |
| US7930654B2 (en) | System and method of correcting errors in SEM-measurements | |
| CN112219271A (zh) | 用以识别与光学邻近校正相关的系统性缺陷的混合设计布局 | |
| Menon et al. | Zone-plate-array lithography (ZPAL): optical maskless lithography for cost-effective patterning | |
| KR20200005682A (ko) | 레티클 최적화 알고리즘들 및 최적의 타겟 설계 | |
| Ebihara et al. | 150-nm dense/isolated contact hole study with Canon IDEAL technique | |
| Liang | Photomask Technology 2023 | |
| Chen et al. | Impact of anamorphic scaling on orientational dependence of high-NA EUV lithography | |
| Behringer et al. | 38th European Mask and Lithography Conference (EMLC 2023) | |
| Rietmann et al. | Enhancing displacement Talbot lithography through inverse-designed curvilinear masks and multibeam mask writing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20191031 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20191031 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200624 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200630 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200929 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20201208 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210304 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210831 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210928 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6952711 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |