JP2008507149A - 高kゲート誘電体および金属ゲート電極を有する半導体デバイス - Google Patents
高kゲート誘電体および金属ゲート電極を有する半導体デバイス Download PDFInfo
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- JP2008507149A JP2008507149A JP2007522546A JP2007522546A JP2008507149A JP 2008507149 A JP2008507149 A JP 2008507149A JP 2007522546 A JP2007522546 A JP 2007522546A JP 2007522546 A JP2007522546 A JP 2007522546A JP 2008507149 A JP2008507149 A JP 2008507149A
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- oxide
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- metal
- aluminide
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 94
- 239000002184 metal Substances 0.000 title claims abstract description 94
- 239000004065 semiconductor Substances 0.000 title claims abstract description 45
- 229910000951 Aluminide Inorganic materials 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 229910052723 transition metal Inorganic materials 0.000 claims description 10
- 150000003624 transition metals Chemical class 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052715 tantalum Inorganic materials 0.000 claims description 7
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- 229910010038 TiAl Inorganic materials 0.000 claims description 6
- 229910007880 ZrAl Inorganic materials 0.000 claims description 6
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 6
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 6
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- 239000010941 cobalt Substances 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 238000000277 atomic layer chemical vapour deposition Methods 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 3
- XWCMFHPRATWWFO-UHFFFAOYSA-N [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] Chemical compound [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] XWCMFHPRATWWFO-UHFFFAOYSA-N 0.000 claims description 3
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 claims description 3
- KJXBRHIPHIVJCS-UHFFFAOYSA-N oxo(oxoalumanyloxy)lanthanum Chemical compound O=[Al]O[La]=O KJXBRHIPHIVJCS-UHFFFAOYSA-N 0.000 claims description 3
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 3
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims description 3
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims description 3
- CZXRMHUWVGPWRM-UHFFFAOYSA-N strontium;barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[Ti+4].[Sr+2].[Ba+2] CZXRMHUWVGPWRM-UHFFFAOYSA-N 0.000 claims description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 3
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 3
- -1 HfAl Inorganic materials 0.000 claims description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910004490 TaAl Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 2
- 239000010410 layer Substances 0.000 description 108
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 16
- 229920005591 polysilicon Polymers 0.000 description 16
- 238000006467 substitution reaction Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000003989 dielectric material Substances 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 235000012239 silicon dioxide Nutrition 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000000908 ammonium hydroxide Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XBYNNYGGLWJASC-UHFFFAOYSA-N barium titanium Chemical compound [Ti].[Ba] XBYNNYGGLWJASC-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001995 intermetallic alloy Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000012702 metal oxide precursor Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 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
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
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- 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
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28194—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation by deposition, e.g. evaporation, ALD, CVD, sputtering, laser deposition
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- 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
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- 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
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- 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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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/4966—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET the conductor material next to the insulator being a composite material, e.g. organic material, TiN, MoSi2
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66545—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using a dummy, i.e. replacement gate in a process wherein at least a part of the final gate is self aligned to the dummy gate
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Abstract
Description
Claims (20)
- ゲート誘電体、および
前記ゲート誘電体の上に形成された、アルミナイドを含む金属ゲート電極、
を有する半導体デバイス。 - 前記ゲート誘電体は、高kゲート誘電体を含み、前記金属ゲート電極は、Mを遷移金属として、組成がMxAlyで表されるアルミナイドを含むことを特徴とする請求項1に記載の半導体デバイス。
- 前記高kゲート誘電体は、ハフニウム酸化物、ハフニウムシリコン酸化物、ランタン酸化物、ランタンアルミニウム酸化物、ジルコニウム酸化物、ジルコニウムシリコン酸化物、チタン酸化物、タンタル酸化物、バリウムストロンチウムチタン酸化物、バリウムチタン酸化物、ストロンチウムチタン酸化物、イットリウム酸化物、アルミニウム酸化物、鉛スカンジウムタンタル酸化物、および鉛亜鉛ニオブ酸塩からなる群から選定された材料を含むことを特徴とする請求項2に記載の半導体デバイス。
- Mは、ジルコニウム、タングステン、タンタル、ハフニウムおよびチタンからなる群から選定された元素を含むことを特徴とする請求項2に記載の半導体デバイス。
- 前記金属ゲート電極は、仕事関数が約4.3eV未満であることを特徴とする請求項1に記載の半導体デバイス。
- 前記金属ゲート電極は、400℃で熱的に安定であることを特徴とする請求項1に記載の半導体デバイス。
- 高kゲート誘電体、および
Mを遷移金属として、組成がMxAlyで表されるアルミナイドを含むNMOS金属ゲート電極、
を有する半導体デバイス。 - 前記高kゲート誘電体は、ハフニウム酸化物、ハフニウムシリコン酸化物、ランタン酸化物、ランタンアルミニウム酸化物、ジルコニウム酸化物、ジルコニウムシリコン酸化物、チタン酸化物、タンタル酸化物、バリウムストロンチウムチタン酸化物、バリウムチタン酸化物、ストロンチウムチタン酸化物、イットリウム酸化物、アルミニウム酸化物、鉛スカンジウムタンタル酸化物、および鉛亜鉛ニオブ酸塩からなる群から選定された材料を含み、
Mは、ジルコニウム、タングステン、タンタル、ハフニウムおよびチタンからなる群から選定された元素を含むことを特徴とする請求項7に記載の半導体デバイス。 - 前記NMOS金属ゲート電極は、仕事関数が約3.9eVから約4.3eVの間であり、400℃で熱的に安定であることを特徴とする請求項7に記載の半導体デバイス。
- さらに前記NMOS金属ゲート電極は、アルミナイド上に形成された充填金属を有することを特徴とする請求項7に記載の半導体デバイス。
- 前記充填金属は、チタン窒化物、タングステン、チタン、アルミニウム、タンタル、タンタル窒化物、コバルト、銅およびニッケルからなる群から選定されることを特徴とする請求項10に記載の半導体デバイス。
-
高kゲート誘電体、
Mを遷移金属として、組成がMxAlyで表されるアルミナイドを含むNMOS金属ゲート電極、および
アルミナイドを含まないPMOS金属ゲート電極、
を有するCMOS半導体デバイス。 - 前記高kゲート誘電体は、ハフニウム酸化物、ジルコニウム酸化物およびアルミニウム酸化物からなる群から選定された材料を含み、
Mは、ジルコニウム、タングステン、タンタル、ハフニウムおよびチタンからなる群から選定された元素を含み、
前記PMOS金属ゲート電極は、ルテニウム、パラジウム、白金、コバルト、ニッケルおよび導電性金属酸化物からなる群から選定された材料を含むことを特徴とする請求項12に記載のCMOS半導体デバイス。 - 前記NMOS金属ゲート電極は、仕事関数が約3.9eVから約4.3eVの間であり、前記PMOS金属ゲート電極は、仕事関数が約4.9eVから約5.2eVの間であることを特徴とする請求項12に記載のCMOS半導体デバイス。
- アルミナイドは、Mを遷移金属として、組成がMxAlyで表され、xは、1から4の間であり、yは、1から4の間であることを特徴とする請求項12に記載のCMOS半導体デバイス。
- アルミナイドは、ZrAl、ZrAl2、ZrAl3、WAl4、TaAl、HfAl、TiAl、TiAl2、TiAl3およびTi3Alからなる群から選定されることを特徴とする請求項15に記載のCMOS半導体デバイス。
- さらに前記NMOS金属ゲート電極は、アルミナイド上に形成された充填金属を有することを特徴とする請求項12に記載のCMOS半導体デバイス。
- 前記充填金属は、チタン窒化物、タングステン、チタン、アルミニウム、タンタル、タンタル窒化物、コバルト、銅およびニッケルからなる群から選定されることを特徴とする請求項17に記載のCMOS半導体デバイス。
- 前記高kゲート誘電体は、原子層化学気相成膜処理プロセスを用いて、約5Åから約40Åの間の厚さとなるように形成され、
アルミナイドは、約100Åから約300Åの間の厚さであることを特徴とする請求項12に記載のCMOS半導体デバイス。 - 前記NMOS金属ゲート電極および前記PMOS金属ゲート電極の両方は、400℃で熱的に安定であることを特徴とする請求項12に記載のCMOS半導体デバイス。
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EP1790006A1 (en) | 2007-05-30 |
EP1790006B1 (en) | 2011-08-24 |
CN102867850A (zh) | 2013-01-09 |
US20060017098A1 (en) | 2006-01-26 |
KR20070020140A (ko) | 2007-02-16 |
JP2012109598A (ja) | 2012-06-07 |
KR100852387B1 (ko) | 2008-08-14 |
US7148548B2 (en) | 2006-12-12 |
TWI304265B (en) | 2008-12-11 |
ATE521985T1 (de) | 2011-09-15 |
CN101036225A (zh) | 2007-09-12 |
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