JP4722390B2 - 半導体素子の製造方法 - Google Patents
半導体素子の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 50
- 238000004519 manufacturing process Methods 0.000 title claims description 46
- 238000009792 diffusion process Methods 0.000 claims description 71
- 239000002184 metal Substances 0.000 claims description 68
- 229910052751 metal Inorganic materials 0.000 claims description 68
- 230000004888 barrier function Effects 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 50
- 238000010438 heat treatment Methods 0.000 claims description 46
- 229910021332 silicide Inorganic materials 0.000 claims description 46
- 239000000758 substrate Substances 0.000 claims description 44
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 43
- 229910052710 silicon Inorganic materials 0.000 claims description 39
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 31
- 239000010703 silicon Substances 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 19
- 229910052750 molybdenum Inorganic materials 0.000 claims description 18
- 229910052759 nickel Inorganic materials 0.000 claims description 18
- 229910052715 tantalum Inorganic materials 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 229910052763 palladium Inorganic materials 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000001451 molecular beam epitaxy Methods 0.000 claims description 4
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 3
- -1 doped Si Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims 2
- PEUPIGGLJVUNEU-UHFFFAOYSA-N nickel silicon Chemical compound [Si].[Ni] PEUPIGGLJVUNEU-UHFFFAOYSA-N 0.000 description 52
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 37
- 239000010410 layer Substances 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 17
- 238000012545 processing Methods 0.000 description 16
- 239000000523 sample Substances 0.000 description 13
- 229910021334 nickel silicide Inorganic materials 0.000 description 12
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 12
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 10
- 230000002776 aggregation Effects 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 238000004627 transmission electron microscopy Methods 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 6
- 238000004626 scanning electron microscopy Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910005881 NiSi 2 Inorganic materials 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 229910016006 MoSi Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000004151 rapid thermal annealing Methods 0.000 description 3
- 239000003870 refractory metal Substances 0.000 description 3
- 229910019001 CoSi Inorganic materials 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000001239 high-resolution electron microscopy Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910008484 TiSi Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001889 high-resolution electron micrograph Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- 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
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66515—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using self aligned selective metal deposition simultaneously on the gate and on source or drain
-
- 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
- H01L21/24—Alloying of impurity materials, e.g. doping materials, electrode materials, with a semiconductor body
-
- 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
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28518—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table the conductive layers comprising silicides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
-
- 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)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
Mo拡散障壁膜を形成していないことを除いては実施例と同じ方法を利用して、Ni膜を30nm厚さに蒸着した後、熱処理温度を変化させながら急速熱処理してニッケルシリサイド膜が蒸着された比較試片を製作した。
図5は、実施例の拡散障壁膜としてMo膜を利用して製造された試片及び比較例の拡散障壁膜を利用せずに製造された試片において、急速熱処理温度によるNiSi膜の面抵抗値の変化を示す。前記面抵抗値は4ポイントプローブを利用して測定された。
3 ゲートオキシド、
5 ゲート、
7 側壁スペーサ、
9 LDD構造のソース/ドレイン、
11 拡散障壁膜、
13 金属膜、
15 金属シリサイド膜。
Claims (22)
- 半導体素子を製造する方法において、
Si含有基板上にシリコン含有ゲート、ゲート酸化膜、側壁スペーサ及びLDD構造のソース/ドレインを形成してトランジスタ構造を形成する段階と、
前記Si含有基板の全面上に拡散障壁膜を形成する段階と、
前記拡散障壁膜が形成されたSi−含有基板上に前記拡散障壁膜とは異なる材料の金属膜を形成する段階と、
前記Si含有基板を熱処理して前記シリコン含有ゲート及び前記LDD構造のソース/ドレイン領域と前記金属膜とを反応させて前記ゲート及び前記ソース/ドレイン領域の表面でのみ選択的に金属シリサイド膜を形成する段階と、を含み、
前記拡散障壁膜はMo、Ta、Mn、Cr、W、Pd、Au、Ag、Cu、Hf、Fe、Zn、Ru、Pb、Mg及びこれらの合金よりなった群から選択された少なくとも何れか1つで形成される半導体素子の製造方法。 - 前記金属シリサイド膜を形成する段階以後に未反応の前記金属を除去する段階をさらに含むことを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記Si含有基板は単結晶Si、多結晶Si、ドーピングされたSi、非晶質Si、SiXGe1−X(Xは0<X<1の数)、SiXN1−X(Xは0<X<1の数)、及びSiCよりなった群から選択された何れか1つであることを特徴とする請求項1または2に記載の半導体素子の製造方法。
- 前記金属膜はNi、Ti、Pt、Pd、Ir、Ta、Nb、V、Cr、Hf、Zr、Mo及びこれらの合金よりなった群から選択された少なくとも何れか1つであることを特徴とする請求項1から3のいずれかに記載の半導体素子の製造方法。
- 前記拡散障壁膜の厚さは0.1nm〜100nmであることを特徴とする請求項1から4のいずれかに記載の半導体素子の製造方法。
- 前記金属膜の厚さは1nm〜1000nmであることを特徴とする請求項1から5のいずれかに記載の半導体素子の製造方法。
- 前記熱処理温度は100℃〜1000℃であることを特徴とする請求項1から6のいずれかに記載の半導体素子の製造方法。
- 前記金属シリサイド膜は前記シリコン含有ゲートの上部表面及び前記LDD構造のソース/ドレイン領域のうち高濃度不純物領域にのみ形成されていることを特徴とする請求項1から7のいずれかに記載の半導体素子の製造方法。
- 前記熱処理段階は前記拡散障壁膜によって前記金属の拡散フラックスが調節されて前記金属とシリコン間の反応が均一に起きる方式で実施されることを特徴とする請求項1から8のいずれかに記載の半導体素子の製造方法。
- 前記拡散障壁膜及び前記金属膜はe−ビーム蒸着、CVD法、PVD法、MBE法またはスパッタリング法によって実施されることを特徴とする請求項1から9のいずれかに記載の半導体素子の製造方法。
- 前記半導体素子はCMOS論理素子、メモリ素子またはインベディドメモリ素子であることを特徴とする請求項1から10のいずれかに記載の半導体素子の製造方法。
- 半導体素子を製造する方法において、
シリコン含有基板またはシリコン膜上に拡散障壁膜を形成する段階と、
前記拡散障壁膜の上部に前記拡散障壁膜とは異なる材料の金属膜を形成する段階と、
前記結果物を熱処理して前記シリコン含有基板またはシリコン膜と前記金属膜とを反応させて金属シリサイド膜を形成する段階と、を含み、
前記拡散障壁膜はMo、Ta、Mn、Cr、W、Pd、Au、Ag、Cu、Hf、Fe、Zn、Ru、Pb、Mg及びこれらの合金よりなった群から選択された少なくとも何れか1つで形成される半導体素子の製造方法。 - 前記金属シリサイド膜を形成する段階後に未反応の前記金属を除去する段階をさらに含むことを特徴とする請求項12に記載の半導体素子の製造方法。
- 前記Si含有基板は単結晶Si、多結晶Si、ドーピングされたSi、非晶質Si、Si X Ge 1−X (Xは0<X<1の数)、Si X N 1−X (Xは0<X<1の数)、及びSiCよりなった群から選択された何れか1つであることを特徴とする請求項12または13に記載の半導体素子の製造方法。
- 前記金属膜はNi、Ti、Pt、Pd、Ir、Ta、Nb、V、Cr、Hf、Zr、Mo及びこれらの合金よりなった群から選択された少なくとも何れか1つであることを特徴とする請求項12から14のいずれかに記載の半導体素子の製造方法。
- 前記拡散障壁膜の厚さは0.1nm〜100nmであることを特徴とする請求項12から15のいずれかに記載の半導体素子の製造方法。
- 前記金属膜の厚さは1nm〜1000nmであることを特徴とする請求項12から16のいずれかに記載の半導体素子の製造方法。
- 前記熱処理温度は100℃〜1000℃であることを特徴とする請求項12から17のいずれかに記載の半導体素子の製造方法。
- 前記金属シリサイド膜は前記シリコン含有ゲートの上部表面及びLDD構造のソース/ドレイン領域のうち高濃度不純物領域にのみ形成されていることを特徴とする請求項12から18のいずれかに記載の半導体素子の製造方法。
- 前記拡散障壁膜は前記熱処理段階で前記金属の拡散フラックスを調節して前記金属とシリコン間の反応が均一に起きるようにすることを特徴とする請求項12から19のいずれかに記載の半導体素子の製造方法。
- 前記拡散障壁膜及び前記金属膜はe−ビーム蒸着、CVD法、PVD法、MBE法またはスパッタリング法によって実施されることを特徴とする請求項12から20のいずれかに記載の半導体素子の製造方法。
- 前記半導体素子はCMOS論理素子、メモリ素子またはインベディドメモリ素子であることを特徴とする請求項12から21のいずれかに記載の半導体素子の製造方法。
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KR100763898B1 (ko) * | 2003-08-02 | 2007-10-05 | 삼성전자주식회사 | 반도체 소자 제조방법 및 이에 의하여 제조된 반도체 소자 |
JP4591917B2 (ja) * | 2004-09-30 | 2010-12-01 | 株式会社トリケミカル研究所 | 導電性モリブデンナイトライド膜形成方法 |
US7501651B2 (en) * | 2004-11-30 | 2009-03-10 | Samsung Electronics Co., Ltd. | Test structure of semiconductor device |
US7419907B2 (en) * | 2005-07-01 | 2008-09-02 | International Business Machines Corporation | Eliminating metal-rich silicides using an amorphous Ni alloy silicide structure |
JP4287421B2 (ja) | 2005-10-13 | 2009-07-01 | 株式会社ルネサステクノロジ | 半導体装置の製造方法 |
US7829416B2 (en) * | 2007-08-07 | 2010-11-09 | Panasonic Corporation | Silicon carbide semiconductor device and method for producing the same |
JP5547877B2 (ja) * | 2008-05-23 | 2014-07-16 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
US8293643B2 (en) | 2010-06-21 | 2012-10-23 | International Business Machines Corporation | Method and structure of forming silicide and diffusion barrier layer with direct deposited film on silicon |
US8129215B1 (en) | 2011-04-01 | 2012-03-06 | James P Campbell | Method for producing high temperature thin film silicon layer on glass |
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CN106611704A (zh) * | 2015-10-26 | 2017-05-03 | 北京大学 | 一种超薄硅化物的制备方法 |
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US20050026428A1 (en) | 2005-02-03 |
US7153770B2 (en) | 2006-12-26 |
KR100763898B1 (ko) | 2007-10-05 |
US20060286787A1 (en) | 2006-12-21 |
KR20050015108A (ko) | 2005-02-21 |
JP2005057233A (ja) | 2005-03-03 |
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