JP5391688B2 - 半導体装置の製造方法と半導体装置 - Google Patents
半導体装置の製造方法と半導体装置 Download PDFInfo
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- JP5391688B2 JP5391688B2 JP2008331992A JP2008331992A JP5391688B2 JP 5391688 B2 JP5391688 B2 JP 5391688B2 JP 2008331992 A JP2008331992 A JP 2008331992A JP 2008331992 A JP2008331992 A JP 2008331992A JP 5391688 B2 JP5391688 B2 JP 5391688B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 19
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- 229910052710 silicon Inorganic materials 0.000 claims description 58
- 239000010703 silicon Substances 0.000 claims description 58
- 239000000758 substrate Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 19
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000005468 ion implantation Methods 0.000 claims description 9
- 229910021332 silicide Inorganic materials 0.000 claims description 8
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 8
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- 229910052814 silicon oxide Inorganic materials 0.000 description 16
- 238000005530 etching Methods 0.000 description 15
- 239000007789 gas Substances 0.000 description 9
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- 230000005669 field effect Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 7
- 229920005591 polysilicon Polymers 0.000 description 7
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- 239000011229 interlayer Substances 0.000 description 5
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- 238000002230 thermal chemical vapour deposition Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
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- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000000609 electron-beam lithography Methods 0.000 description 1
- WZVIPWQGBBCHJP-UHFFFAOYSA-N hafnium(4+);2-methylpropan-2-olate Chemical compound [Hf+4].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-] WZVIPWQGBBCHJP-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- 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
- H01L29/66545—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
-
- 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
- H01L29/66787—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel
- H01L29/66795—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- 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
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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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
- H01L21/823821—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of transistors with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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Description
半導体層と前記半導体層上の絶縁体層からなる支持基板上に、頂部水平面と垂直側面を有し、第1の方向に延在するフィン型シリコン領域を形成し、
前記フィン型シリコン領域中間部を横断し、前記フィン型シリコン領域の頂部水平面と垂直側面を覆う頂部と垂直部及び、前記支持基板の前記フィン型シリコン領域両側の少なくとも一部の表面を覆う底部水平部を有し、前記第1の方向とは異なる第2の方向に延在する絶縁ダミーゲート電極を形成し、
前記絶縁ダミーゲート電極、前記フィン型シリコン領域を埋め込む第1の絶縁膜を形成し、
前記絶縁ダミーゲート電極が露出するまで前記第1の絶縁膜を研磨し、
前記絶縁ダミーゲート電極の頂部と、垂直部の少なくとも一部とを除去して前記フィン型シリコン領域表面を露出し、前記絶縁ダミーゲート電極の底部水平部は残した状態で、トレンチを形成し、
前記トレンチ内で前記フィン型シリコン領域表面上に、前記絶縁ダミーゲート電極の底部水平部に連続する、ゲート電極構造を形成する、
半導体装置の製造方法
が提供される。
12 酸化シリコン層、
13 シリコンフィン領域、
14 キャップ層、
16 窒化シリコン膜(ダミーゲート電極)、
18 サイドウォールスペーサ、
20 絶縁膜、
21 ゲート絶縁膜、
22 ゲート電極、
24 層間絶縁膜、
26 導電性プラグ、
RP レジストパターン、
SL シリサイド層。
Claims (10)
- 半導体層と前記半導体層上の絶縁体層からなる支持基板上に、頂部水平面と垂直側面を有し、第1の方向に延在するフィン型シリコン領域を形成し、
前記フィン型シリコン領域中間部を横断し、前記フィン型シリコン領域の頂部水平面と垂直側面を覆う頂部と垂直部及び、前記支持基板の前記フィン型シリコン領域両側の少なくとも一部の表面を覆う底部水平部を有し、前記第1の方向とは異なる第2の方向に延在する絶縁ダミーゲート電極を形成し、
前記絶縁ダミーゲート電極、前記フィン型シリコン領域を埋め込む第1の絶縁膜を形成し、
前記絶縁ダミーゲート電極が露出するまで前記第1の絶縁膜を研磨し、
前記絶縁ダミーゲート電極の頂部と、垂直部の少なくとも一部とを除去して前記フィン型シリコン領域表面を露出し、前記絶縁ダミーゲート電極の底部水平部は残した状態で、トレンチを形成し、
前記トレンチ内で前記フィン型シリコン領域表面上に、前記絶縁ダミーゲート電極の底部水平部に連続する、ゲート電極構造を形成する、
半導体装置の製造方法。 - 前記ゲート電極構造を形成する際、前記第1の絶縁膜表面と前記ゲート電極構造の頂面とを面一の構造とする請求項1記載の半導体装置の製造方法。
- 前記絶縁ダミーゲート電極を形成する前に、前記フィン型シリコン領域頂部表面を覆う絶縁キャップ層を形成し、前記絶縁ダミーゲート電極構造を形成する際前記絶縁キャップ層もパターニングする、
請求項1または2記載の半導体装置の製造方法。 - 前記絶縁ダミーゲート電極を形成した後、両側の前記フィン型シリコン領域側面にソース/ドレイン領域を形成する、
請求項1〜3のいずれか1項記載の半導体装置の製造方法。 - 前記ゲート電極構造を形成した後、前記第1の絶縁膜を除去し、
前記ゲート電極構造両側の前記フィン型シリコン領域側面にソース/ドレイン領域を形成する、
請求項1〜3のいずれか1項記載の半導体装置の製造方法。 - 前記ソース/ドレイン領域形成後、前記ゲート電極構造、前記フィン型シリコン領域を覆う第2の絶縁膜を形成し、
前記ゲート電極構造頂面が露出するまで前記第2の絶縁膜を研磨する、
請求項5記載の半導体装置の製造方法。 - 前記ソース/ドレイン領域を形成する際、
エクステンション領域形成用の斜めイオン注入を行ない、
前記フィン型シリコン領域と前記ゲート電極構造の垂直な面上に絶縁サイドウォールスペーサを形成し、
低抵抗領域形成用の斜めイオン注入を行なう、
請求項4〜6のいずれか1項記載の半導体装置の製造方法。 - 前記ソース/ドレイン領域を形成した後、前記ソース/ドレイン領域表面にシリサイド層を形成する、
請求項4〜7のいずれか1項記載の半導体装置の製造方法。 - 半導体層と前記半導体層上の絶縁体層からなる支持基板と、
前記支持基板上に形成され、頂部水平面、垂直側面を有するフィン形シリコン領域と、
前記フィン型シリコン領域中間部の頂部水平面上に形成された絶縁キャップ層と、
前記フィン型シリコン領域中間部の垂直側面に接し、両側の前記支持基板の少なくとも一部の表面を覆う底部水平部を有する絶縁ダミーゲート電極と、
前記フィン型シリコン領域中間部の垂直側面、前記絶縁キャップ層の側面、上面を覆って形成され、前記絶縁ダミーゲート電極の底部水平部に連続するゲート電極構造と、
前記ゲート電極構造の両側の前記フィン型シリコン領域側面に形成されたソース/ドレイン領域と、
前記フィン型シリコン領域、前記絶縁キャップ層、前記絶縁ダミーゲート電極、前記ゲート電極構造を囲み、前記ゲート電極構造の頂面と面一の表面を有する絶縁膜と、
を有する半導体装置。 - 前記フィン型シリコン領域、前記ゲート電極構造の垂直な面上に形成された絶縁サイドウォールスペーサ
をさらに有する、請求項9記載の半導体装置。
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JP2014096553A (ja) * | 2012-10-09 | 2014-05-22 | Tokyo Electron Ltd | プラズマ処理方法、及びプラズマ処理装置 |
US10005990B2 (en) * | 2013-02-01 | 2018-06-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | Cleaning method for semiconductor device fabrication |
EP2887399B1 (en) * | 2013-12-20 | 2017-08-30 | Imec | A method for manufacturing a transistor device and associated device |
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US9647091B2 (en) * | 2015-05-01 | 2017-05-09 | International Business Machines Corporation | Annealed metal source drain overlapping the gate |
US10164120B2 (en) | 2015-05-28 | 2018-12-25 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device |
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US6764884B1 (en) * | 2003-04-03 | 2004-07-20 | Advanced Micro Devices, Inc. | Method for forming a gate in a FinFET device and thinning a fin in a channel region of the FinFET device |
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US7015534B2 (en) * | 2003-10-14 | 2006-03-21 | Texas Instruments Incorporated | Encapsulated MOS transistor gate structures and methods for making the same |
KR100521384B1 (ko) * | 2003-11-17 | 2005-10-12 | 삼성전자주식회사 | 반도체 소자 및 그 제조 방법 |
KR100585178B1 (ko) * | 2005-02-05 | 2006-05-30 | 삼성전자주식회사 | 금속 게이트 전극을 가지는 FinFET을 포함하는반도체 소자 및 그 제조방법 |
WO2006132172A1 (ja) * | 2005-06-07 | 2006-12-14 | Nec Corporation | フィン型電界効果型トランジスタ、半導体装置及びその製造方法 |
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US20100167475A1 (en) | 2010-07-01 |
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