JP2008518487A - 高誘電率ゲート誘電体層及びシリサイドゲート電極を有する半導体デバイスの製造方法 - Google Patents
高誘電率ゲート誘電体層及びシリサイドゲート電極を有する半導体デバイスの製造方法 Download PDFInfo
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- JP2008518487A JP2008518487A JP2007539366A JP2007539366A JP2008518487A JP 2008518487 A JP2008518487 A JP 2008518487A JP 2007539366 A JP2007539366 A JP 2007539366A JP 2007539366 A JP2007539366 A JP 2007539366A JP 2008518487 A JP2008518487 A JP 2008518487A
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- layer
- silicide
- gate electrode
- oxide
- metal
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- 229910021332 silicide Inorganic materials 0.000 title claims abstract description 36
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000004065 semiconductor Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 61
- 229910052751 metal Inorganic materials 0.000 claims description 56
- 239000002184 metal Substances 0.000 claims description 56
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 42
- 229920005591 polysilicon Polymers 0.000 claims description 42
- 230000008569 process Effects 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 28
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- 229910021334 nickel silicide Inorganic materials 0.000 claims description 7
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 5
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 5
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 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
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- 229910021341 titanium silicide Inorganic materials 0.000 claims description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 5
- 229910000951 Aluminide Inorganic materials 0.000 claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 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
- 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 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 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 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 3
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Inorganic materials [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 claims description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-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 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 2
- KJXBRHIPHIVJCS-UHFFFAOYSA-N oxo(oxoalumanyloxy)lanthanum Chemical compound O=[Al]O[La]=O KJXBRHIPHIVJCS-UHFFFAOYSA-N 0.000 claims description 2
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 2
- 238000001039 wet etching Methods 0.000 claims description 2
- RPEUFVJJAJYJSS-UHFFFAOYSA-N zinc;oxido(dioxo)niobium Chemical compound [Zn+2].[O-][Nb](=O)=O.[O-][Nb](=O)=O RPEUFVJJAJYJSS-UHFFFAOYSA-N 0.000 claims description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 2
- 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 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 238000000137 annealing Methods 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 238000005498 polishing 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
- 239000000243 solution Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 239000000908 ammonium hydroxide Substances 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 229910005883 NiSi Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 238000000277 atomic layer chemical vapour deposition Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910026551 ZrC Inorganic materials 0.000 description 1
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- WHJFNYXPKGDKBB-UHFFFAOYSA-N hafnium;methane Chemical compound C.[Hf] WHJFNYXPKGDKBB-UHFFFAOYSA-N 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 239000012702 metal oxide precursor Substances 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- 150000005622 tetraalkylammonium hydroxides Chemical class 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
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- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- 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
- H01L29/4975—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 being a silicide layer, e.g. TiSi2
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- 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
- H01L21/28097—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 a metallic silicide
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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
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- 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
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- 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
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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
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- H01L29/511—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
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- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
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- Insulated Gate Type Field-Effect Transistor (AREA)
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Abstract
Description
Claims (20)
- 基板上に高誘電率ゲート誘電体層を形成する工程;
前記高誘電率ゲート誘電体層上に障壁層を形成する工程;及び
前記障壁層上に完全にシリサイド化されたゲート電極を形成する工程;
を有する、半導体デバイスの製造方法。 - 前記高誘電率ゲート誘電体層は、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、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、及び鉛・亜鉛ニオブ酸塩から成るグループから選択された材料を有する、請求項1に記載の製造方法。
- 前記障壁層は導電性であり且つ仕事関数的に透明である、請求項1に記載の製造方法。
- 前記障壁層は金属窒化物を有する、請求項3に記載の製造方法。
- 前記完全にシリサイド化されたゲート電極は、ニッケルシリサイド、コバルトシリサイド、及びチタンシリサイドから成るグループから選択された材料を有する、請求項1に記載の製造方法。
- 前記完全にシリサイド化されたゲート電極を生成するために、実質的に全てのp型ポリシリコン層がシリサイドに変化させられる、請求項1に記載の製造方法。
- 前記完全にシリサイド化されたゲート電極を生成するために、全てのp型ポリシリコン層がシリサイドに変化させられる、請求項1に記載の製造方法。
- 基板上に高誘電率ゲート誘電体層を形成する工程;
前記高誘電率ゲート誘電体層上に障壁層を形成する工程;
前記障壁層上にポリシリコン層を形成する工程;
一対の側壁スペーサ間に位置するトレンチを形成するように前記ポリシリコン層の第1部分を除去する工程;
前記トレンチ内にn型金属層を形成する工程;
前記ポリシリコン層の第2部分上に第2の金属層を堆積する工程;及び
前記ポリシリコン層の第2部分の実質的に全てを金属シリサイドに変化させるために十分な時間にわたって十分な温度に加熱する工程;
を有する、半導体デバイスの製造方法。 - 前記n型金属層は、ハフニウム、ジルコニウム、チタン、タンタル、アルミニウム、金属炭化物、及びアルミナイドから成るグループから選択された材料を有する、請求項8に記載の製造方法。
- 前記金属シリサイドは、ニッケルシリサイド、コバルトシリサイド、及びチタンシリサイドから成るグループから選択される、請求項8に記載の製造方法。
- 前記n型金属層は約3.9eVと約4.2eVとの間の仕事関数を有し、且つ前記金属シリサイドは約4.3eVと約4.8eVとの間の仕事関数を有する、請求項8に記載の製造方法。
- 前記ポリシリコン層の第2部分はp型ポリシリコン層であり、前記ポリシリコン層の第1部分は、該ポリシリコン層の第1部分に対して前記ポリシリコン層206の第2部分より選択的であるウェットエッチングプロセスを用いて除去される、請求項8に記載の製造方法。
- 前記ポリシリコン層の第2部分の全てが金属シリサイドに変化させられる、請求項8に記載の製造方法。
- 前記高誘電率ゲート誘電体層は、ハフニウム酸化物、ジルコニウム酸化物、及びアルミニウム酸化物から成るグループから選択された材料を有し、且つ前記障壁層は金属窒化物を有する、請求項8に記載の製造方法。
- 前記障壁層は、チタン窒化物及びタンタル窒化物から成るグループから選択された材料を有する、請求項14に記載の製造方法。
- 基板上に形成された高誘電率ゲート誘電体層;
前記高誘電率ゲート誘電体層上に形成された障壁層;及び
前記障壁層上に形成された完全にシリサイド化されたゲート電極;
を有する半導体デバイス。 - 前記障壁層は金属窒化物を有し、且つ前記ゲート電極は、ニッケルシリサイド、コバルトシリサイド、及びチタンシリサイドから成るグループから選択された金属シリサイドを有する、請求項16に記載の半導体デバイス。
- 前記高誘電率ゲート誘電体層は、ハフニウム酸化物、ジルコニウム酸化物、及びアルミニウム酸化物から成るグループから選択された材料を有し、且つ前記障壁層は、チタン窒化物及びタンタル窒化物から成るグループから選択された材料を有する、請求項17に記載の半導体デバイス。
- 金属NMOSゲート電極を更に有し、且つ前記完全にシリサイド化されたゲート電極はPMOSゲート電極を有する、請求項16に記載の半導体デバイス。
- 前記金属NMOSゲート電極は、約100Åと約2000Åとの間の厚さであり、約3.9eVと約4.2eVとの間の仕事関数を有し、且つハフニウム、ジルコニウム、チタン、タンタル、アルミニウム、金属炭化物、及びアルミナイドから成るグループから選択された材料を有し;且つ
前記PMOSゲート電極は約100Åと約2000Åとの間の厚さであり、且つ約4.3eVと約4.8eVとの間の仕事関数を有する;
請求項19に記載の半導体デバイス。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/980,522 US20060094180A1 (en) | 2004-11-02 | 2004-11-02 | Method for making a semiconductor device with a high-k gate dielectric layer and a silicide gate electrode |
US10/980,522 | 2004-11-02 | ||
US11/242,807 | 2005-10-03 | ||
US11/242,807 US20060091483A1 (en) | 2004-11-02 | 2005-10-03 | Method for making a semiconductor device with a high-k gate dielectric layer and a silicide gate electrode |
PCT/US2005/040136 WO2006050517A1 (en) | 2004-11-02 | 2005-11-02 | A method for making a semiconductor device with a high-k gate dielectric layer and a silicide gate electrode |
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US (1) | US20060091483A1 (ja) |
JP (1) | JP5090173B2 (ja) |
KR (1) | KR20070050494A (ja) |
DE (1) | DE112005002350B4 (ja) |
GB (1) | GB2433839B (ja) |
TW (1) | TWI315093B (ja) |
WO (1) | WO2006050517A1 (ja) |
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DE112005002350T5 (de) | 2007-09-20 |
KR20070050494A (ko) | 2007-05-15 |
WO2006050517A1 (en) | 2006-05-11 |
GB2433839A (en) | 2007-07-04 |
TWI315093B (en) | 2009-09-21 |
US20060091483A1 (en) | 2006-05-04 |
TW200629476A (en) | 2006-08-16 |
GB2433839B (en) | 2010-05-26 |
JP5090173B2 (ja) | 2012-12-05 |
GB0705315D0 (en) | 2007-04-25 |
DE112005002350B4 (de) | 2010-05-20 |
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