JP2008527739A - 被覆キャップを有する相互接続構造およびその製造方法 - Google Patents
被覆キャップを有する相互接続構造およびその製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000151 deposition Methods 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 89
- 238000000034 method Methods 0.000 claims description 55
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 16
- 239000011229 interlayer Substances 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000010941 cobalt Substances 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 20
- 239000010949 copper Substances 0.000 description 17
- 229910052802 copper Inorganic materials 0.000 description 16
- 230000004888 barrier function Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 238000001465 metallisation Methods 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 150000002739 metals Chemical group 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000007772 electroless plating Methods 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 239000003870 refractory metal Substances 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- -1 tantalum (Ta) Chemical class 0.000 description 3
- 244000132059 Carica parviflora Species 0.000 description 2
- 235000014653 Carica parviflora Nutrition 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- QAAXRTPGRLVPFH-UHFFFAOYSA-N [Bi].[Cu] Chemical compound [Bi].[Cu] QAAXRTPGRLVPFH-UHFFFAOYSA-N 0.000 description 2
- TYYOGQJRDAYPNI-UHFFFAOYSA-N [Re].[Cu] Chemical compound [Re].[Cu] TYYOGQJRDAYPNI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- PLZFHNWCKKPCMI-UHFFFAOYSA-N cadmium copper Chemical compound [Cu].[Cd] PLZFHNWCKKPCMI-UHFFFAOYSA-N 0.000 description 2
- HVMJUDPAXRRVQO-UHFFFAOYSA-N copper indium Chemical compound [Cu].[In] HVMJUDPAXRRVQO-UHFFFAOYSA-N 0.000 description 2
- HNWNJTQIXVJQEH-UHFFFAOYSA-N copper rhodium Chemical compound [Cu].[Rh] HNWNJTQIXVJQEH-UHFFFAOYSA-N 0.000 description 2
- OUFLLVQXSGGKOV-UHFFFAOYSA-N copper ruthenium Chemical compound [Cu].[Ru].[Ru].[Ru] OUFLLVQXSGGKOV-UHFFFAOYSA-N 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910016347 CuSn Inorganic materials 0.000 description 1
- 229910002535 CuZn Inorganic materials 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910008807 WSiN Inorganic materials 0.000 description 1
- OWXLRKWPEIAGAT-UHFFFAOYSA-N [Mg].[Cu] Chemical compound [Mg].[Cu] OWXLRKWPEIAGAT-UHFFFAOYSA-N 0.000 description 1
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- RYTYSMSQNNBZDP-UHFFFAOYSA-N cobalt copper Chemical compound [Co].[Cu] RYTYSMSQNNBZDP-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- XPPWAISRWKKERW-UHFFFAOYSA-N copper palladium Chemical compound [Cu].[Pd] XPPWAISRWKKERW-UHFFFAOYSA-N 0.000 description 1
- WBLJAACUUGHPMU-UHFFFAOYSA-N copper platinum Chemical compound [Cu].[Pt] WBLJAACUUGHPMU-UHFFFAOYSA-N 0.000 description 1
- YCKOAAUKSGOOJH-UHFFFAOYSA-N copper silver Chemical compound [Cu].[Ag].[Ag] YCKOAAUKSGOOJH-UHFFFAOYSA-N 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- HWEYZGSCHQNNEH-UHFFFAOYSA-N silicon tantalum Chemical compound [Si].[Ta] HWEYZGSCHQNNEH-UHFFFAOYSA-N 0.000 description 1
- WNUPENMBHHEARK-UHFFFAOYSA-N silicon tungsten Chemical compound [Si].[W] WNUPENMBHHEARK-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- 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
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/7685—Barrier, adhesion or liner layers the layer covering a conductive structure
- H01L21/76852—Barrier, adhesion or liner layers the layer covering a conductive structure the layer also covering the sidewalls of the conductive structure
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- 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
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- 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
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- 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
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Abstract
【解決手段】 相互接続構造を製造する方法であって、誘電層に相互接続部を設けるステップと、相互接続部の一部が誘電層の上面よりも上に延出するように誘電層をくぼませるステップと、相互接続部の延出した部分の上に被覆キャップを堆積するステップと、を含む。
【選択図】 図8
Description
Claims (26)
- 相互接続構造を製造する方法であって、
誘電層に相互接続部を設けるステップと、
前記相互接続部の一部が前記誘電層の上面よりも上に延出するように前記誘電層をくぼませるステップと、
前記相互接続部の前記延出した部分の上に被覆キャップを堆積するステップと、
を含む、方法。 - 前記被覆キャップの上に層間誘電層を堆積するステップを更に含む、請求項1に記載の方法。
- 前記層間誘電層にトレンチまたはバイアを形成して、前記トレンチまたは前記バイアの底面が前記被覆キャップの上に位置するようにするステップを更に含む、請求項1に記載の方法。
- 前記相互接続部が寸法幅Wを有する相互接続ラインであり、前記被覆キャップが1.1Wから1.6Wの寸法幅を有する、請求項2に記載の方法。
- 前記被覆キャップが1.2Wから1.4Wの寸法幅を有する、請求項4に記載の方法。
- 前記層間誘電層にバイアを形成して、前記バイアの底面が前記被覆キャップの上に位置するようにするステップを更に含む、請求項4に記載の方法。
- 前記被覆キャップが無電解プロセスによって堆積される、請求項1に記載の方法。
- 前記被覆キャップがニッケルまたはコバルトの一次金属を含む金属合金である、請求項1に記載の方法。
- 前記被覆キャップがCoWPである、請求項1に記載の方法。
- 前記相互接続部が寸法直径Dを有するバイアであり、前記被覆キャップが1.1Dから1.6Dの寸法直径を有する、請求項2に記載の方法。
- 前記被覆キャップが1.2Dから1.4Dの寸法直径を有する、請求項10に記載の方法。
- 前記層間誘電層にトレンチを形成して、前記トレンチの底面が前記被覆キャップの上に位置するようにするステップを更に含む、請求項10に記載の方法。
- 前記被覆キャップが200Åから1500Åの厚さを有する、請求項1に記載の方法。
- 前記相互接続部は延出部分を有し、前記延出部分が15Åから150Åである、請求項1に記載の方法。
- 相互接続構造を製造する方法であって、
誘電層に相互接続ラインを設けるステップと、
前記相互接続ラインの一部が前記誘電層の上面よりも上に延出するように、前記相互接続ラインに隣接する領域において前記誘電層をくぼませるステップと、
前記相互接続ラインの前記延出した部分の上に被覆キャップを堆積するステップと、
前記被覆キャップの上に層間誘電層を堆積するステップと、
前記層間誘電層にバイアを形成して、前記バイアの底面が前記被覆キャップの上に位置するようにするステップと、
を含む、方法。 - 前記相互接続ラインが寸法幅Wを有し、前記キャップが1.1Wから1.6Wの寸法幅を有する、請求項15に記載の方法。
- 相互接続構造を製造する方法であって、
誘電層にバイアを設けるステップと、
前記バイアの一部が前記誘電層の上面よりも上に延出するように、前記バイアに隣接する領域において前記誘電層をくぼませるステップと、
前記バイアの前記延出した部分の上に被覆キャップを堆積するステップと、
前記被覆キャップの上に層間誘電層を堆積するステップと、
前記層間誘電層にトレンチを形成して、前記トレンチの底面が前記被覆キャップの上に位置するようにするステップと、
を含む、方法。 - 前記バイアの直径が寸法直径Dを有し、前記キャップが1.1Dから1.6Dの寸法直径を有する、請求項17に記載の方法。
- 誘電層に配置された相互接続部を含み、前記相互接続部の一部が前記誘電層の表面よりも上に延出し、前記相互接続部の前記延出した部分が被覆キャップによって覆われている、相互接続構造。
- 前記相互接続部が相互接続ラインまたはバイアである、請求項19に記載の相互接続構造。
- 前記相互接続部が寸法幅Wを有する相互接続ラインであり、前記被覆キャップが1.1Wから1.6Wの寸法幅を有する、請求項19に記載の相互接続構造。
- 前記被覆キャップが1.2Wから1.4Wの寸法幅を有する、請求項21に記載の相互接続構造。
- 前記バイアが寸法直径Dを有し、前記被覆キャップが1.1Dから1.6Dの寸法直径を有する、請求項19に記載の相互接続構造。
- 前記被覆キャップが1.2Dから1.4Dの寸法直径を有する、請求項19に記載の相互接続構造。
- 前記被覆キャップが200Åから1500Åの厚さを有する、請求項19に記載の相互接続構造。
- 前記相互接続構造の前記延出した部分が15Åから150Åである、請求項19に記載の相互接続構造。
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US11/034,890 US7105445B2 (en) | 2005-01-14 | 2005-01-14 | Interconnect structures with encasing cap and methods of making thereof |
PCT/US2005/043465 WO2006088534A1 (en) | 2005-01-14 | 2005-12-02 | Interconnect structures with encasing cap and methods of making thereof |
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US (3) | US7105445B2 (ja) |
EP (1) | EP1836726A4 (ja) |
JP (1) | JP2008527739A (ja) |
CN (1) | CN100517621C (ja) |
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US20070054489A1 (en) | 2007-03-08 |
CN101099235A (zh) | 2008-01-02 |
US7488677B2 (en) | 2009-02-10 |
US7105445B2 (en) | 2006-09-12 |
WO2006088534A1 (en) | 2006-08-24 |
US20060160349A1 (en) | 2006-07-20 |
EP1836726A4 (en) | 2010-07-28 |
US20080318415A1 (en) | 2008-12-25 |
EP1836726A1 (en) | 2007-09-26 |
TW200634980A (en) | 2006-10-01 |
US7902061B2 (en) | 2011-03-08 |
CN100517621C (zh) | 2009-07-22 |
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