JP4491332B2 - 最適化した偏光照明 - Google Patents
最適化した偏光照明 Download PDFInfo
- Publication number
- JP4491332B2 JP4491332B2 JP2004327534A JP2004327534A JP4491332B2 JP 4491332 B2 JP4491332 B2 JP 4491332B2 JP 2004327534 A JP2004327534 A JP 2004327534A JP 2004327534 A JP2004327534 A JP 2004327534A JP 4491332 B2 JP4491332 B2 JP 4491332B2
- Authority
- JP
- Japan
- Prior art keywords
- polarization
- illuminator
- illumination
- ils
- point
- 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.)
- Expired - Fee Related
Links
- 238000005286 illumination Methods 0.000 title claims description 178
- 230000010287 polarization Effects 0.000 claims description 194
- 238000000034 method Methods 0.000 claims description 35
- 239000000758 substrate Substances 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 19
- 230000005855 radiation Effects 0.000 claims description 18
- 238000003384 imaging method Methods 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 10
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 235000012431 wafers Nutrition 0.000 description 107
- 239000011449 brick Substances 0.000 description 83
- 238000013467 fragmentation Methods 0.000 description 69
- 238000006062 fragmentation reaction Methods 0.000 description 69
- 238000007639 printing Methods 0.000 description 59
- 238000004088 simulation Methods 0.000 description 59
- 210000001747 pupil Anatomy 0.000 description 46
- 230000004044 response Effects 0.000 description 32
- 230000003287 optical effect Effects 0.000 description 12
- 239000013598 vector Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 238000005457 optimization Methods 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 230000005684 electric field Effects 0.000 description 6
- 238000007654 immersion Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001393 microlithography Methods 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000011960 computer-aided design Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000001015 X-ray lithography Methods 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001900 extreme ultraviolet lithography Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000000671 immersion lithography Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 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
- G03F7/70605—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
- 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
- G03F1/36—Masks having proximity correction features; Preparation thereof, e.g. optical proximity correction [OPC] design 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
- 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
- G03F7/70058—Mask illumination systems
- G03F7/70125—Use of illumination settings tailored to particular mask 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
- G03F7/70216—Mask projection systems
- G03F7/70341—Details of immersion lithography aspects, e.g. exposure media or control of immersion liquid supply
-
- 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
- G03F7/7055—Exposure light control in all parts of the microlithographic apparatus, e.g. pulse length control or light interruption
- G03F7/70566—Polarisation control
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Polarising Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53066203P | 2003-12-19 | 2003-12-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005183938A JP2005183938A (ja) | 2005-07-07 |
| JP2005183938A5 JP2005183938A5 (enExample) | 2007-08-02 |
| JP4491332B2 true JP4491332B2 (ja) | 2010-06-30 |
Family
ID=34520284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004327534A Expired - Fee Related JP4491332B2 (ja) | 2003-12-19 | 2004-11-11 | 最適化した偏光照明 |
Country Status (7)
| Country | Link |
|---|---|
| US (3) | US7292315B2 (enExample) |
| EP (1) | EP1544679B1 (enExample) |
| JP (1) | JP4491332B2 (enExample) |
| KR (1) | KR100919856B1 (enExample) |
| CN (1) | CN100524028C (enExample) |
| SG (1) | SG135042A1 (enExample) |
| TW (1) | TWI373278B (enExample) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7292315B2 (en) * | 2003-12-19 | 2007-11-06 | Asml Masktools B.V. | Optimized polarization illumination |
| US20070019179A1 (en) | 2004-01-16 | 2007-01-25 | Damian Fiolka | Polarization-modulating optical element |
| US8270077B2 (en) | 2004-01-16 | 2012-09-18 | Carl Zeiss Smt Gmbh | Polarization-modulating optical element |
| CN101793993B (zh) | 2004-01-16 | 2013-04-03 | 卡尔蔡司Smt有限责任公司 | 光学元件、光学布置及系统 |
| US7324280B2 (en) | 2004-05-25 | 2008-01-29 | Asml Holding N.V. | Apparatus for providing a pattern of polarization |
| WO2005122218A1 (ja) * | 2004-06-09 | 2005-12-22 | Nikon Corporation | 露光装置及びデバイス製造方法 |
| JP4528580B2 (ja) * | 2004-08-24 | 2010-08-18 | 株式会社東芝 | 照明光源の設計方法、マスクパターン設計方法、フォトマスクの製造方法、半導体装置の製造方法、及びプログラム |
| US7317506B2 (en) * | 2005-03-29 | 2008-01-08 | Asml Netherlands B.V. | Variable illumination source |
| US7548302B2 (en) * | 2005-03-29 | 2009-06-16 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
| KR20080018203A (ko) * | 2005-06-24 | 2008-02-27 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 조명 시스템의 편광의 특성을 기술하기 위한 방법 및디바이스 |
| US7804646B2 (en) * | 2006-01-31 | 2010-09-28 | Asml Masktools B.V. | Method for decomposition of a customized DOE for use with a single exposure into a set of multiple exposures using standard DOEs with optimized exposure settings |
| US7548315B2 (en) * | 2006-07-27 | 2009-06-16 | Asml Netherlands B.V. | System and method to compensate for critical dimension non-uniformity in a lithography system |
| US7705998B2 (en) * | 2007-09-12 | 2010-04-27 | Infineon Technologies Ag | Method for evaluating an optical imaging process |
| JP2009071125A (ja) * | 2007-09-14 | 2009-04-02 | Canon Inc | 露光条件を決定する方法及びプログラム |
| US7673278B2 (en) * | 2007-11-29 | 2010-03-02 | Tokyo Electron Limited | Enhanced process yield using a hot-spot library |
| TW200938957A (en) * | 2008-03-05 | 2009-09-16 | Nanya Technology Corp | Feedback system and feedback method for controlling power ratio of light source |
| JP2009251521A (ja) * | 2008-04-10 | 2009-10-29 | Jedat Inc | ガラスデータ設計システム、方法およびプログラム |
| JP5607327B2 (ja) * | 2009-08-27 | 2014-10-15 | キヤノン株式会社 | 決定方法、露光方法、デバイスの製造方法及びプログラム |
| US8982324B2 (en) * | 2009-12-15 | 2015-03-17 | Asml Holding N.V. | Polarization designs for lithographic apparatus |
| NL2007306A (en) | 2010-09-23 | 2012-03-26 | Asml Netherlands Bv | Source polarization optimization. |
| NL2007303A (en) * | 2010-09-23 | 2012-03-26 | Asml Netherlands Bv | Process tuning with polarization. |
| JP2012099596A (ja) * | 2010-11-01 | 2012-05-24 | Panasonic Corp | 照明形状の最適化方法、マスク形状の最適化方法及びパターン形成方法 |
| JP2012169483A (ja) * | 2011-02-15 | 2012-09-06 | Toshiba Corp | 露光条件決定プログラム |
| CN106028585B (zh) * | 2016-05-23 | 2018-03-09 | 电子科技大学 | 一种基于牛顿极值搜索算法的双闭环照明节能控制方法 |
| CN106028584B (zh) * | 2016-05-23 | 2018-03-09 | 电子科技大学 | 一种基于梯度极值搜索算法的双闭环照明节能控制方法 |
| CN106341938B (zh) * | 2016-11-07 | 2018-08-07 | 电子科技大学 | 基于变幅值牛顿极值搜索算法的照明节能控制方法 |
| EP3336608A1 (en) * | 2016-12-16 | 2018-06-20 | ASML Netherlands B.V. | Method and apparatus for image analysis |
| DE102017115262B9 (de) * | 2017-07-07 | 2021-05-27 | Carl Zeiss Smt Gmbh | Verfahren zur Charakterisierung einer Maske für die Mikrolithographie |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4985579A (en) | 1989-10-16 | 1991-01-15 | Dow Corning Corporation | Removal of hydrogen-containing silanes from organosilane mixtures |
| US6404482B1 (en) * | 1992-10-01 | 2002-06-11 | Nikon Corporation | Projection exposure method and apparatus |
| JP3339593B2 (ja) | 1993-04-22 | 2002-10-28 | 株式会社ニコン | 投影露光装置、及び該装置を用いた素子製造方法 |
| US5559583A (en) | 1994-02-24 | 1996-09-24 | Nec Corporation | Exposure system and illuminating apparatus used therein and method for exposing a resist film on a wafer |
| DE19535392A1 (de) | 1995-09-23 | 1997-03-27 | Zeiss Carl Fa | Radial polarisationsdrehende optische Anordnung und Mikrolithographie-Projektionsbelichtungsanlage damit |
| EP0824722B1 (en) * | 1996-03-06 | 2001-07-25 | Asm Lithography B.V. | Differential interferometer system and lithographic step-and-scan apparatus provided with such a system |
| DE69717975T2 (de) * | 1996-12-24 | 2003-05-28 | Asml Netherlands B.V., Veldhoven | In zwei richtungen ausgewogenes positioniergerät, sowie lithographisches gerät mit einem solchen positioniergerät |
| US6140660A (en) | 1999-03-23 | 2000-10-31 | Massachusetts Institute Of Technology | Optical synthetic aperture array |
| US6491396B2 (en) * | 2000-02-15 | 2002-12-10 | Seiko Epson Corporation | Projector modulating a plurality of partial luminous fluxes according to imaging information by means of an electro-optical device |
| US6563566B2 (en) * | 2001-01-29 | 2003-05-13 | International Business Machines Corporation | System and method for printing semiconductor patterns using an optimized illumination and reticle |
| US7396558B2 (en) | 2001-01-31 | 2008-07-08 | Toray Industries, Inc. | Integrated mask and method and apparatus for manufacturing organic EL device using the same |
| TWI285295B (en) | 2001-02-23 | 2007-08-11 | Asml Netherlands Bv | Illumination optimization in lithography |
| US6519760B2 (en) | 2001-02-28 | 2003-02-11 | Asml Masktools, B.V. | Method and apparatus for minimizing optical proximity effects |
| KR20040051613A (ko) * | 2001-10-19 | 2004-06-18 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 조명 편광 변환 시스템 |
| US7293249B2 (en) * | 2002-01-31 | 2007-11-06 | Juan Andres Torres Robles | Contrast based resolution enhancement for photolithographic processing |
| US6888615B2 (en) * | 2002-04-23 | 2005-05-03 | Asml Holding N.V. | System and method for improving linewidth control in a lithography device by varying the angular distribution of light in an illuminator as a function of field position |
| JP2004111579A (ja) * | 2002-09-17 | 2004-04-08 | Canon Inc | 露光方法及び装置 |
| TWI247339B (en) | 2003-02-21 | 2006-01-11 | Asml Holding Nv | Lithographic printing with polarized light |
| US7411677B2 (en) * | 2003-09-17 | 2008-08-12 | Photonic Lattice Inc. | Driverless ellipsometer and ellipsometry |
| TWI569308B (zh) | 2003-10-28 | 2017-02-01 | 尼康股份有限公司 | 照明光學裝置、曝光裝置、曝光方法以及元件製造 方法 |
| TW200523524A (en) | 2003-11-05 | 2005-07-16 | Asml Masktools Bv | Eigen decomposition based OPC model |
| US7292315B2 (en) * | 2003-12-19 | 2007-11-06 | Asml Masktools B.V. | Optimized polarization illumination |
-
2004
- 2004-08-20 US US10/921,878 patent/US7292315B2/en not_active Expired - Fee Related
- 2004-11-09 SG SG200406521-5A patent/SG135042A1/en unknown
- 2004-11-11 KR KR1020040091966A patent/KR100919856B1/ko not_active Expired - Fee Related
- 2004-11-11 JP JP2004327534A patent/JP4491332B2/ja not_active Expired - Fee Related
- 2004-11-12 CN CNB2004100947120A patent/CN100524028C/zh not_active Expired - Fee Related
- 2004-11-12 TW TW093134767A patent/TWI373278B/zh not_active IP Right Cessation
- 2004-11-12 EP EP04257019.2A patent/EP1544679B1/en not_active Ceased
-
2007
- 2007-10-16 US US11/907,648 patent/US7710544B2/en not_active Expired - Fee Related
-
2010
- 2010-05-04 US US12/773,775 patent/US8395757B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1629731A (zh) | 2005-06-22 |
| JP2005183938A (ja) | 2005-07-07 |
| EP1544679B1 (en) | 2014-01-08 |
| TWI373278B (en) | 2012-09-21 |
| TW200527953A (en) | 2005-08-16 |
| US8395757B2 (en) | 2013-03-12 |
| EP1544679A2 (en) | 2005-06-22 |
| US20110051114A1 (en) | 2011-03-03 |
| KR100919856B1 (ko) | 2009-09-30 |
| US20080043215A1 (en) | 2008-02-21 |
| KR20050062364A (ko) | 2005-06-23 |
| US7710544B2 (en) | 2010-05-04 |
| SG135042A1 (en) | 2007-09-28 |
| US20050134822A1 (en) | 2005-06-23 |
| CN100524028C (zh) | 2009-08-05 |
| EP1544679A3 (en) | 2007-07-25 |
| US7292315B2 (en) | 2007-11-06 |
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