JP4083751B2 - 空間光変調器アレイを較正するシステムおよび空間光変調器アレイを較正する方法 - Google Patents
空間光変調器アレイを較正するシステムおよび空間光変調器アレイを較正する方法 Download PDFInfo
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- JP4083751B2 JP4083751B2 JP2005021924A JP2005021924A JP4083751B2 JP 4083751 B2 JP4083751 B2 JP 4083751B2 JP 2005021924 A JP2005021924 A JP 2005021924A JP 2005021924 A JP2005021924 A JP 2005021924A JP 4083751 B2 JP4083751 B2 JP 4083751B2
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- spatial light
- light modulator
- modulator array
- shearing interferometer
- slm
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- 238000000034 method Methods 0.000 title claims description 26
- 238000010008 shearing Methods 0.000 claims description 43
- 230000003287 optical effect Effects 0.000 claims description 23
- 238000003384 imaging method Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 235000012431 wafers Nutrition 0.000 description 21
- 210000001747 pupil Anatomy 0.000 description 20
- 238000005286 illumination Methods 0.000 description 16
- 239000000758 substrate Substances 0.000 description 15
- 238000001459 lithography Methods 0.000 description 13
- 230000004075 alteration Effects 0.000 description 11
- 230000008859 change Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G03F7/70591—Testing optical components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
- G01J9/0215—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods by shearing interferometric methods
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
-
- 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
- G03F7/70216—Mask projection systems
- G03F7/70283—Mask effects on the imaging process
- G03F7/70291—Addressable masks, e.g. spatial light modulators [SLMs], digital micro-mirror devices [DMDs] or liquid crystal display [LCD] patterning devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Description
Claims (22)
- 空間光変調器アレイを較正するシステムにおいて、
空間光変調器アレイと、
前記空間光変調器アレイを像平面に結像する投影光学系と、
前記像平面において干渉パターンを生成するシアリング干渉計と、
前記空間光変調器アレイを変調する制御装置とを包含することを特徴とする、空間光変調器アレイを較正するシステム。 - 前記シアリング干渉計はずれを生じさせる回折格子、プリズムおよび折り畳みミラーのいずれかを包含する、請求項1記載のシステム。
- 前記シアリング干渉計はラテラルシアリング干渉計である、請求項1記載のシステム。
- 前記シアリング干渉計は伸張シアリング干渉計である、請求項1記載のシステム。
- 前記シアリング干渉計は回転シアリング干渉計である、請求項1記載のシステム。
- 前記投影光学系は前記空間光変調器アレイの各素子を前記像平面において解像する、請求項1記載のシステム。
- 前記制御装置は前記空間光変調器アレイの素子を1列おきに変調する、請求項1記載のシステム。
- 前記シアリング干渉計は、前記空間光変調器アレイの素子の整数分の光のずれに対応するピッチを備えた回折格子を包含する、請求項1記載のシステム。
- 前記シアリング干渉計は、前記空間光変調器アレイの素子の分数分の光のずれに対応するピッチを備えた回折格子を包含する、請求項1記載のシステム。
- 前記制御装置は前記素子の傾斜、ピストン運動および変形を制御する、請求項1記載のシステム。
- 前記像平面においてインターフェログラムを検出するためにCCDセンサが設けられている、請求項1記載のシステム。
- 前記CCDセンサは前記空間光変調器アレイの各素子に対応する複数の検出セルを包含する、請求項11記載のシステム。
- 前記空間光変調器アレイは反射性空間光変調器アレイである、請求項1記載のシステム。
- 前記空間光変調器アレイはピストン式空間光変調器アレイである、請求項1記載のシステム。
- 前記空間光変調器アレイは傾斜マイクロミラー式空間光変調器アレイである、請求項1記載のシステム。
- 前記空間光変調器アレイは透過性空間光変調器アレイである、請求項1記載のシステム。
- 空間光変調器アレイを較正する方法において、
(a)空間光変調器アレイを変調するステップと、
(b)前記空間光変調器アレイを像平面に結像するステップと、
(c)前記像平面において干渉を生じるよう光をずらすステップと、
(d)干渉縞を測定するステップと、
(e)前記空間光変調器アレイを較正するために前記ステップ(a)から(d)を繰り返すステップとを包含することを特徴とする、空間光変調器アレイを較正する方法。 - 前記ステップ(c)は回折格子、プリズム、折り畳みミラーのいずれかを使用して光をずらすステップを含む、請求項17記載の方法。
- 前記ステップ(c)は伸張シアリング干渉計を使用して光をずらすステップを含む、請求項17記載の方法。
- 前記ステップ(c)は回転シアリング干渉計を使用して光をずらすステップを含む、請求項17記載の方法。
- 前記ステップ(c)は前記空間光変調器アレイの素子の整数分の光のずれに対応するピッチを備えた回折格子を使用して光をずらすステップを含む、請求項17記載の方法。
- 前記ステップ(c)は前記空間光変調器アレイの素子の分数分の光のずれに対応するピッチを備えた回折格子を使用して光をずらすステップを含む、請求項17記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/765,947 US6847461B1 (en) | 2004-01-29 | 2004-01-29 | System and method for calibrating a spatial light modulator array using shearing interferometry |
US10/981,706 US6965436B2 (en) | 2004-01-29 | 2004-11-05 | System and method for calibrating a spatial light modulator array using shearing interferometry |
Publications (2)
Publication Number | Publication Date |
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JP2005217424A JP2005217424A (ja) | 2005-08-11 |
JP4083751B2 true JP4083751B2 (ja) | 2008-04-30 |
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JP2005021924A Expired - Fee Related JP4083751B2 (ja) | 2004-01-29 | 2005-01-28 | 空間光変調器アレイを較正するシステムおよび空間光変調器アレイを較正する方法 |
Country Status (2)
Country | Link |
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US (1) | US7158238B2 (ja) |
JP (1) | JP4083751B2 (ja) |
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CN103424996B (zh) * | 2013-09-03 | 2016-03-02 | 苏州大学 | 一种光学加工系统和方法 |
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-
2005
- 2005-01-28 JP JP2005021924A patent/JP4083751B2/ja not_active Expired - Fee Related
- 2005-06-13 US US11/150,344 patent/US7158238B2/en not_active Expired - Fee Related
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Publication number | Publication date |
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US7158238B2 (en) | 2007-01-02 |
US20050225859A1 (en) | 2005-10-13 |
JP2005217424A (ja) | 2005-08-11 |
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