JP4969779B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP4969779B2 JP4969779B2 JP2004381419A JP2004381419A JP4969779B2 JP 4969779 B2 JP4969779 B2 JP 4969779B2 JP 2004381419 A JP2004381419 A JP 2004381419A JP 2004381419 A JP2004381419 A JP 2004381419A JP 4969779 B2 JP4969779 B2 JP 4969779B2
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- 239000004065 semiconductor Substances 0.000 title claims description 59
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 239000012535 impurity Substances 0.000 claims description 98
- 239000010410 layer Substances 0.000 claims description 75
- 229910021332 silicide Inorganic materials 0.000 claims description 41
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 27
- 239000002344 surface layer Substances 0.000 claims description 26
- 238000005204 segregation Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 42
- 229910005883 NiSi Inorganic materials 0.000 description 14
- 229910052796 boron Inorganic materials 0.000 description 12
- 239000000758 substrate Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910019001 CoSi Inorganic materials 0.000 description 7
- 229910052785 arsenic Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 238000004151 rapid thermal annealing Methods 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910005881 NiSi 2 Inorganic materials 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910021140 PdSi Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 1
- 229960001231 choline Drugs 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
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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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28026—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor
- H01L21/28035—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities
- H01L21/28044—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer
- H01L21/28052—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer the conductor comprising a silicide layer formed by the silicidation reaction of silicon with a metal layer
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- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823828—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes
- H01L21/823835—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes silicided or salicided gate conductors
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- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823828—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes
- H01L21/823842—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate conductors, e.g. particular materials, shapes gate conductors with different gate conductor materials or different gate conductor implants, e.g. dual gate structures
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- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823871—Complementary field-effect transistors, e.g. CMOS interconnection or wiring or contact manufacturing related aspects
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Electrodes Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
るデュアルゲート(Dual Gate)構造を採用する場合には、サリサイド構造は単にゲート電極を低抵抗化するだけでなく、工程簡略化に有効である。その理由は、ソース・ドレインヘの不純物ドーピングの際に、同時にゲート多結晶シリコンヘのドーピングができるからである。サリサイドとは、Siと絶縁膜のパターン上に金属膜を成膜して、これを加熱し、ソース・ドレイン、ゲート電極・配線Si上にだけ、自己整合的にシリサイドを形成する技術である。而して、PMOS FETとNMOS FETとが並んで形成される場合もある。
半導体層の表面にシリサイド膜を形成することを含む半導体装置の製造方法であって、
前記半導体層中に、不純物の導入により、p型不純物層及びn型不純物層を形成すると共にこれらの間に挟まれた位置に(p+n)型不純物層を形成し、
前記半導体層をRTAで熱処理することにより、前記p型、n型及び(p+n)型不純物層の表層に、不純物が前記半導体層内部よりも高濃度で偏析した不純物偏析層を形成し、
この不純物偏析層を除去することにより、前記半導体層の表層の総不純物濃度を低下させ、
この後、前記半導体層上に金属材料を成膜し、熱処理することによりシリサイド膜を形成する、
ことを特徴とする、半導体装置の製造方法を提供するものである。
半導体層の表面にシリサイド膜を形成することを含む半導体装置の製造方法であって、
前記半導体層中に、不純物の導入により、p型不純物層及びn型不純物層を形成すると共にこれらの間に挟まれた位置に(p+n)型不純物層を形成し、
前記半導体層をRTAで熱処理することにより、前記p型、n型及び(p+n)型不純物層の表層に、不純物が前記半導体層内部よりも高濃度で偏析した不純物偏析層を形成し、
この後、Ge、SiまたはSnのいずれかの不純物を前記不純物偏析層中に導入することにより、前記半導体層の表層を破砕し、
この後、前記不純物偏析層上に金属材料を成膜し、熱処理することによりシリサイド膜を形成する、
ことを特徴とする、半導体装置の製造方法を提供するものである。
本発明を実施するための最良の形態について、半導体基板上にMOSトランジスタ構造を形成する場合を例にとって、図面に基づき、いくつかの実施例を挙げながら説明する。ちなみに、下記実施例では、多結晶シリコンについて取り上げるが、多結晶シリコンGeを用いた実施の形態でも同様な結果が得られる。
図1(a)、(b)、(c)は本発明の、実施例1の半導体装置の構造およびその製造方法を説明するための、断面模式図である。
図2(a)、(b)は本発明の、実施例2の半導体装置の構造およびその製造方法を説明するための、断面模式図である。
12 p型多結晶シリコン領域
13 境界領域
14 不純物偏析層
15 金属材料膜
16、16a 金属シリサイド膜
Claims (5)
- 半導体層の表面にシリサイド膜を形成することを含む半導体装置の製造方法であって、
前記半導体層中に、不純物の導入により、p型不純物層及びn型不純物層を形成すると共にこれらの間に挟まれた位置に(p+n)型不純物層を形成し、
前記半導体層をRTAで熱処理することにより、前記p型、n型及び(p+n)型不純物層の表層に、不純物が前記半導体層内部よりも高濃度で偏析した不純物偏析層を形成し、
この不純物偏析層を除去することにより、前記半導体層の表層の総不純物濃度を低下させ、
この後、前記半導体層上に金属材料を成膜し、熱処理することによりシリサイド膜を形成する、
ことを特徴とする、半導体装置の製造方法。 - 半導体層の表面にシリサイド膜を形成することを含む半導体装置の製造方法であって、
前記半導体層中に、不純物の導入により、p型不純物層及びn型不純物層を形成すると共にこれらの間に挟まれた位置に(p+n)型不純物層を形成し、
前記半導体層をRTAで熱処理することにより、前記p型、n型及び(p+n)型不純物層の表層に、不純物が前記半導体層内部よりも高濃度で偏析した不純物偏析層を形成し、
この後、Ge、SiまたはSnのいずれかの不純物を前記不純物偏析層中に導入することにより、前記半導体層の表層を破砕し、
この後、前記不純物偏析層上に金属材料を成膜し、熱処理することによりシリサイド膜を形成する、
ことを特徴とする、半導体装置の製造方法。 - 前記p型、n型及び(p+n)型不純物層は、
前記半導体層の表面における一側を第1のマスクで被い、露呈する第1露呈部分に、前記p型及びn型の一方の不純物を導入し、次いで、前記半導体層の表面における他側を第2のマスクで被い、前記第1露呈部分と重なった重複露呈部分を含む第2露呈部分に、他方の不純物を導入することにより、
形成されることを特徴とする、請求項1又は2に記載の半導体装置の製造方法。 - 前記不純物偏析層として、前記(p+n)型不純物層上に、p型不純物とn型不純物の化合物層を偏析させることを特徴とする、請求項1乃至3の1つに記載の半導体装置の製造方法。
- 前記半導体層を、隣り合うPMOS FETのゲートとNMOS FETのゲートに共通ゲートとして形成し、これらのPMOS FETとNMOS FETの境界としての領域に、前記(p+n)型不純物層を形成した、ことを特徴とする請求項1乃至4の1つに記載の半導体装置の製造方法。
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JP2004381419A JP4969779B2 (ja) | 2004-12-28 | 2004-12-28 | 半導体装置の製造方法 |
TW094145936A TW200636860A (en) | 2004-12-28 | 2005-12-22 | Semiconductor device, wiring and their manufacturing method |
US11/318,478 US20060160315A1 (en) | 2004-12-28 | 2005-12-28 | Semiconductor device manufacturing method, wiring and semiconductor device |
US12/320,655 US7879723B2 (en) | 2004-12-28 | 2009-01-30 | Semiconductor device manufacturing method, wiring and semiconductor device |
US13/340,109 US8497205B2 (en) | 2004-12-28 | 2011-12-29 | Semiconductor device manufacturing method, wiring and semiconductor device |
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JP3914114B2 (ja) * | 2002-08-12 | 2007-05-16 | 株式会社東芝 | 半導体装置およびその製造方法 |
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US4389257A (en) * | 1981-07-30 | 1983-06-21 | International Business Machines Corporation | Fabrication method for high conductivity, void-free polysilicon-silicide integrated circuit electrodes |
US4803539A (en) * | 1985-03-29 | 1989-02-07 | International Business Machines Corporation | Dopant control of metal silicide formation |
US4847213A (en) * | 1988-09-12 | 1989-07-11 | Motorola, Inc. | Process for providing isolation between CMOS devices |
JP2895166B2 (ja) * | 1990-05-31 | 1999-05-24 | キヤノン株式会社 | 半導体装置の製造方法 |
JPH04119631A (ja) * | 1990-09-10 | 1992-04-21 | Fujitsu Ltd | 半導体装置の製造方法 |
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-
2004
- 2004-12-28 JP JP2004381419A patent/JP4969779B2/ja active Active
-
2005
- 2005-12-22 TW TW094145936A patent/TW200636860A/zh unknown
- 2005-12-28 US US11/318,478 patent/US20060160315A1/en not_active Abandoned
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US20090203181A1 (en) | 2009-08-13 |
US7879723B2 (en) | 2011-02-01 |
JP2006186285A (ja) | 2006-07-13 |
US20060160315A1 (en) | 2006-07-20 |
TW200636860A (en) | 2006-10-16 |
US8497205B2 (en) | 2013-07-30 |
US20120164811A1 (en) | 2012-06-28 |
TWI304614B (ja) | 2008-12-21 |
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