JPWO2009028480A1 - 半導体装置の製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 91
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000005530 etching Methods 0.000 claims abstract description 90
- 238000000034 method Methods 0.000 claims abstract description 61
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 230000000630 rising effect Effects 0.000 claims abstract description 20
- 239000010408 film Substances 0.000 claims description 23
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 19
- 229920005591 polysilicon Polymers 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 2
- 238000000059 patterning Methods 0.000 abstract description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 24
- 239000007795 chemical reaction product Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 238000009616 inductively coupled plasma Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910003691 SiBr Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 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
- 229910052726 zirconium Inorganic materials 0.000 description 1
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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
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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
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- 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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- H01L21/18—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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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- H01L21/321—After treatment
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- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
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- H01L21/34—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 not provided for in groups H01L21/0405, H01L21/0445, H01L21/06, H01L21/16 and H01L21/18 with or without impurities, e.g. doping materials
- H01L21/46—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/428
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- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
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- 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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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
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- Drying Of Semiconductors (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (7)
- 半導体基板上に、面およびこの面から上方に立上る立上り面を持つ突状形態の絶縁層を形成する工程と、
前記突状形態の絶縁層を覆うように導電層を形成する工程と、
85mTorr以上の高圧の条件下で、前記半導体基板に70mW/cm2以上のバイアスパワーを加えながら、マイクロ波をプラズマ源としたマイクロ波プラズマを用いたエッチング処理によって、前記導電層の所定領域をパターニングして除去する工程とを含む、半導体装置の製造方法。 - 前記エッチング処理を行う際に、前記半導体基板に100kHz以上2MHz以下の周波数のバイアス電圧を加える、請求項1に記載の半導体装置の製造方法。
- 前記エッチング処理を行う際のエッチングガスの流量は、1600sccm以上である、請求項1に記載の半導体装置の製造方法。
- 前記絶縁層は、シリコン酸化膜であり、
前記導電層は、ポリシリコンである、請求項1に記載の半導体装置の製造方法。 - 前記絶縁層を形成する工程に先立ち、前記半導体基板上に、上方に立上った突状形態の導電層を形成する工程を備え、
前記絶縁層は、前記突状形態の導電層の表面に形成された薄膜絶縁層を含む、請求項1に記載の半導体装置の製造方法。 - 前記突状形態の絶縁層は、前記面から所定の高さを隔てて前記立上り面の上部に位置する、請求項1に記載の半導体装置の製造方法。
- 半導体基板の主表面上に、この主表面から上方に立上って延び、ソース領域およびドレイン領域となるべき突条部を形成する工程と、
前記突条部のソース領域およびドレイン領域間に位置するチャネル領域上にゲート絶縁膜となるべき絶縁層を形成する工程と、
前記突条部および前記絶縁層を覆う導電層を形成する工程と、
85mTorr以上の高圧の条件下で、前記半導体基板に70mW/cm2以上のバイアスパワーを加えながら、マイクロ波をプラズマ源としたマイクロ波プラズマを用いたエッチング処理によって、前記導電層をパターニングして前記チャネル領域上の導電層を残しながら前記導電層を除去してゲート電極を形成する工程とを含む、半導体装置の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2009530117A JP5316412B2 (ja) | 2007-08-31 | 2008-08-26 | 半導体装置の製造方法 |
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JP2007226345 | 2007-08-31 | ||
JP2007226345 | 2007-08-31 | ||
PCT/JP2008/065151 WO2009028480A1 (ja) | 2007-08-31 | 2008-08-26 | 半導体装置の製造方法 |
JP2009530117A JP5316412B2 (ja) | 2007-08-31 | 2008-08-26 | 半導体装置の製造方法 |
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Publication Number | Publication Date |
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JPWO2009028480A1 true JPWO2009028480A1 (ja) | 2010-12-02 |
JP5316412B2 JP5316412B2 (ja) | 2013-10-16 |
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JP2009530117A Expired - Fee Related JP5316412B2 (ja) | 2007-08-31 | 2008-08-26 | 半導体装置の製造方法 |
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US (3) | US8765589B2 (ja) |
JP (1) | JP5316412B2 (ja) |
KR (1) | KR101190074B1 (ja) |
CN (1) | CN101868850B (ja) |
TW (1) | TWI366875B (ja) |
WO (1) | WO2009028480A1 (ja) |
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CN101868850A (zh) | 2010-10-20 |
TW200931526A (en) | 2009-07-16 |
KR101190074B1 (ko) | 2012-10-11 |
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