JP4398376B2 - 金属層の電気メッキ及び平坦化処理を行う装置及び方法 - Google Patents
金属層の電気メッキ及び平坦化処理を行う装置及び方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000009713 electroplating Methods 0.000 title claims abstract description 46
- 239000002184 metal Substances 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 32
- 238000005498 polishing Methods 0.000 claims abstract description 48
- 230000008569 process Effects 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 239000010949 copper Substances 0.000 claims abstract description 28
- 238000000866 electrolytic etching Methods 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 238000007747 plating Methods 0.000 claims description 79
- 238000005530 etching Methods 0.000 claims description 29
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 4
- 229910001431 copper ion Inorganic materials 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 108091081062 Repeated sequence (DNA) Proteins 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000003491 array Methods 0.000 description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 4
- 239000012964 benzotriazole Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005389 semiconductor device fabrication Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/12—Semiconductors
- C25D7/123—Semiconductors first coated with a seed layer or a conductive layer
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/001—Apparatus specially adapted for electrolytic coating of wafers, e.g. semiconductors or solar cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/288—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition
- H01L21/2885—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition using an external electrical current, i.e. electro-deposition
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
- H01L21/32125—Planarisation by chemical mechanical polishing [CMP] by simultaneously passing an electrical current, i.e. electrochemical mechanical polishing, e.g. ECMP
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/7684—Smoothing; Planarisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S205/00—Electrolysis: processes, compositions used therein, and methods of preparing the compositions
- Y10S205/917—Treatment of workpiece between coating steps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Electroplating Methods And Accessories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electrodes Of Semiconductors (AREA)
- Chemically Coating (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Weting (AREA)
Description
L<<BL ラインまたはビアをメッキする場合 (1)
L>>BL 電気エッチングの場合 (2)
Claims (14)
- 表面に凹部領域が設けられている基板への金属層の電気メッキと、電気エッチング及び化学機械研磨(CMP)を含む平坦化処理とを行う装置であって、
電気メッキ溶液を分配するチャネルを形成する複数の穴部を有するテーブルと、
該テーブルにより支持され、上面を有しかつ前記テーブルの前記複数の穴部のそれぞれに1つずつ連通する複数の穴部を有する研磨パッドと、
前記電気メッキ溶液に接触するように前記チャネルのそれぞれの内部に配置された複数のアノードと、
前記基板を前記研磨パッドの前記上面に対して実質的に平行にかつ前記上面に対向するように支持し、前記テーブルに対して回転すると共にカソードとして働くキャリアと、
前記テーブルに設けられ、前記CMPの間前記研磨パッド上に研磨スラリを供給するための研磨スラリー供給用穴部と、
前記電気メッキの間は前記基板と前記研磨パッドとの間の間隔を第1の間隔に維持し、前記電気エッチングの間は前記基板と前記研磨パッドとの間の間隔を前記第1の間隔よりも大きい第2間隔に維持する手段とを備える、装置。 - 前記金属層が銅であり、前記電気メッキ溶液が銅イオンを生じる溶液である、請求項1に記載の装置。
- 前記アノードを備える複数のチャネルが同心状に配置され、前記基板の外側の第1ゾーン、該第1ゾーンの内側の第2ゾーン及び該第2ゾーンの内側の第3ゾーンに順次銅のシード層をメッキするように前記複数のチャネルの前記アノードに対するメッキ電流が順次切り替えられる、請求項1又は請求項2に記載の装置。
- 前記電気メッキが、前記基板の凹部領域を前記金属層で埋めるプロセスであり、前記第1の間隔が、5μm乃至100μmである、請求項1又は請求項2に記載の装置。
- 前記カソードおよび前記アノードに接続された電源をさらに含み、電流が、前記カソードと前記アノードの間を前記電気メッキの間は順方向に流れ、前記電気エッチングの間は逆方向に流れる、請求項1に記載の装置。
- 前記電気エッチングの間、前記電気メッキ溶液に代えてエッチング溶液を使用する手段を備える、請求項1に記載の装置。
- 前記エッチング溶液が濃リン酸である、請求項6に記載の装置。
- 電気メッキ溶液を分配するチャネルを形成する複数の穴部を有するテーブルと、
該テーブルにより支持され、上面を有しかつ前記テーブルの前記複数の穴部のそれぞれに1つずつ連通する複数の穴部を有する研磨パッドと、
前記電気メッキ溶液に接触するように前記チャネルのそれぞれの内部に配置された複数のアノードと、
表面に凹部領域が設けられている基板を前記研磨パッドの前記上面に対して実質的に平行にかつ前記上面に対向するように支持し、前記テーブルに対して回転すると共にカソードとして働くキャリアと、
前記テーブルに設けられ、前記CMPの間前記研磨パッド上に研磨スラリを供給するための研磨スラリー供給用穴部とを備えた装置を使用して基板への金属層の電気メッキと、電気エッチング及び化学機械研磨(CMP)を含む平坦化処理とを行う方法であって、
前記基板と前記研磨パッドとの間の間隔を第1の間隔に維持して前記基板と前記研磨パッドとの間に電気メッキ溶液を供給すると共に、前記カソードと前記アノードの間を電流を順方向に流して前記基板の表面及び凹部領域内に金属層を電気メッキするステップと、
前記基板と前記研磨パッドとの間の間隔を前記第1の間隔よりも大きい第2の間隔に維持し、前記基板と前記研磨パッドとの間にエッチング溶液を供給すると共に前記カソードと前記アノードの間を電流を逆方向に流して前記金属層の一部を電気エッチングするステップと、
前記CMPの間、前記研磨スラリー供給用穴部を介して前記研磨パッドに前記研磨スラリを供給して前記基板のCMPを行うステップとを含む、方法。 - 前記金属層が銅であり、前記電気メッキ溶液が銅イオンを生じる溶液である、請求項8に記載の方法。
- 前記アノードを備える複数のチャネルが同心状に配置され、前記金属層を電気メッキするステップの間、前記基板の外側の第1ゾーン、該第1ゾーンの内側の第2ゾーン及び該第2ゾーンの内側の第3ゾーンに順次銅のシード層をメッキするように前記複数のチャネルの前記アノードに対するメッキ電流が順次切り替えられる、請求項8又は請求項9に記載の方法。
- 前記金属層を電気メッキするステップが、前記基板の凹部領域を前記金属層で埋めるプロセスであり、前記第1の間隔が、5μm乃至100μmである、請求項8又は請求項9に記載の方法。
- 前記電気エッチングするステップの間、前記電気メッキ溶液に代えてエッチング溶液を使用する、請求項8に記載の方法。
- 前記エッチング溶液が濃リン酸である、請求項8に記載の方法。
- 前記金属層におけるオーバーバーデンの成長を制限するために、前記金属層を電気メッキするステップと前記電気エッチングするステップとを交互に行う、請求項8に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/294,200 US6773570B2 (en) | 2002-11-14 | 2002-11-14 | Integrated plating and planarization process and apparatus therefor |
PCT/US2003/036208 WO2004046426A1 (en) | 2002-11-14 | 2003-11-14 | Integrated plating and planarization process and apparatus therefor |
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JP2006506523A JP2006506523A (ja) | 2006-02-23 |
JP4398376B2 true JP4398376B2 (ja) | 2010-01-13 |
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US (1) | US6773570B2 (ja) |
EP (1) | EP1560949B1 (ja) |
JP (1) | JP4398376B2 (ja) |
KR (1) | KR100687129B1 (ja) |
CN (1) | CN100465352C (ja) |
AT (1) | ATE445034T1 (ja) |
AU (1) | AU2003290804A1 (ja) |
DE (1) | DE60329621D1 (ja) |
WO (1) | WO2004046426A1 (ja) |
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US20060003566A1 (en) * | 2004-06-30 | 2006-01-05 | Ismail Emesh | Methods and apparatuses for semiconductor fabrication utilizing through-wafer interconnects |
US9822461B2 (en) | 2006-08-16 | 2017-11-21 | Novellus Systems, Inc. | Dynamic current distribution control apparatus and method for wafer electroplating |
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CN100582314C (zh) * | 2007-09-10 | 2010-01-20 | 厦门致力金刚石工具有限公司 | 抛镀机 |
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US8518817B2 (en) | 2010-09-22 | 2013-08-27 | International Business Machines Corporation | Method of electrolytic plating and semiconductor device fabrication |
TWI550139B (zh) | 2011-04-04 | 2016-09-21 | 諾菲勒斯系統公司 | 用於裁整均勻輪廓之電鍍裝置 |
US9909228B2 (en) | 2012-11-27 | 2018-03-06 | Lam Research Corporation | Method and apparatus for dynamic current distribution control during electroplating |
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JP6198456B2 (ja) * | 2013-05-20 | 2017-09-20 | 東京エレクトロン株式会社 | 基板の処理方法及びテンプレート |
CN104742007B (zh) * | 2013-12-30 | 2017-08-25 | 中芯国际集成电路制造(北京)有限公司 | 化学机械研磨装置和化学机械研磨方法 |
US9752248B2 (en) | 2014-12-19 | 2017-09-05 | Lam Research Corporation | Methods and apparatuses for dynamically tunable wafer-edge electroplating |
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US9988733B2 (en) | 2015-06-09 | 2018-06-05 | Lam Research Corporation | Apparatus and method for modulating azimuthal uniformity in electroplating |
TWI663294B (zh) | 2017-12-15 | 2019-06-21 | Chipbond Technology Corporation | 電鍍裝置及其壓力艙 |
US12116689B2 (en) * | 2021-01-26 | 2024-10-15 | Seagate Technology Llc | Selective screen electroplating |
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US5911619A (en) | 1997-03-26 | 1999-06-15 | International Business Machines Corporation | Apparatus for electrochemical mechanical planarization |
US6004880A (en) | 1998-02-20 | 1999-12-21 | Lsi Logic Corporation | Method of single step damascene process for deposition and global planarization |
US6328872B1 (en) | 1999-04-03 | 2001-12-11 | Nutool, Inc. | Method and apparatus for plating and polishing a semiconductor substrate |
US6413388B1 (en) * | 2000-02-23 | 2002-07-02 | Nutool Inc. | Pad designs and structures for a versatile materials processing apparatus |
US6270646B1 (en) | 1999-12-28 | 2001-08-07 | International Business Machines Corporation | Electroplating apparatus and method using a compressible contact |
US6454916B1 (en) * | 2000-01-05 | 2002-09-24 | Advanced Micro Devices, Inc. | Selective electroplating with direct contact chemical polishing |
US6478936B1 (en) * | 2000-05-11 | 2002-11-12 | Nutool Inc. | Anode assembly for plating and planarizing a conductive layer |
US6793797B2 (en) * | 2002-03-26 | 2004-09-21 | Taiwan Semiconductor Manufacturing Co., Ltd | Method for integrating an electrodeposition and electro-mechanical polishing process |
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2002
- 2002-11-14 US US10/294,200 patent/US6773570B2/en not_active Expired - Lifetime
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2003
- 2003-11-14 DE DE60329621T patent/DE60329621D1/de not_active Expired - Lifetime
- 2003-11-14 CN CNB2003801019293A patent/CN100465352C/zh not_active Expired - Fee Related
- 2003-11-14 WO PCT/US2003/036208 patent/WO2004046426A1/en active Application Filing
- 2003-11-14 AU AU2003290804A patent/AU2003290804A1/en not_active Abandoned
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EP1560949A4 (en) | 2007-02-28 |
CN100465352C (zh) | 2009-03-04 |
EP1560949B1 (en) | 2009-10-07 |
JP2006506523A (ja) | 2006-02-23 |
WO2004046426A1 (en) | 2004-06-03 |
AU2003290804A1 (en) | 2004-06-15 |
CN1705774A (zh) | 2005-12-07 |
DE60329621D1 (de) | 2009-11-19 |
US20040094427A1 (en) | 2004-05-20 |
KR100687129B1 (ko) | 2007-02-27 |
ATE445034T1 (de) | 2009-10-15 |
KR20050067180A (ko) | 2005-06-30 |
US6773570B2 (en) | 2004-08-10 |
EP1560949A1 (en) | 2005-08-10 |
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