JP5714831B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 141
- 238000004519 manufacturing process Methods 0.000 title claims description 42
- 150000002500 ions Chemical class 0.000 claims description 57
- 239000012535 impurity Substances 0.000 claims description 42
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 33
- 239000000758 substrate Substances 0.000 claims description 24
- 238000002513 implantation Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- 238000009792 diffusion process Methods 0.000 claims description 11
- 238000005530 etching Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 229910014311 BxHy Inorganic materials 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 2
- 229910052796 boron Inorganic materials 0.000 description 54
- -1 boron ion Chemical class 0.000 description 38
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 36
- 239000010410 layer Substances 0.000 description 27
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 18
- 238000005468 ion implantation Methods 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 229910052785 arsenic Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 150000004767 nitrides Chemical class 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 5
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000000137 annealing Methods 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- 239000000539 dimer Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
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- 239000012776 electronic material Substances 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 230000018109 developmental process Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 238000005498 polishing 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
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 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
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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
- H01L21/26—Bombardment with radiation
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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
- H01L21/26—Bombardment with radiation
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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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- 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
- H01L29/66803—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 with a step of doping the vertical sidewall, e.g. using tilted or multi-angled implants
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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
- 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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- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
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- Health & Medical Sciences (AREA)
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- Insulated Gate Type Field-Effect Transistor (AREA)
- Thin Film Transistor (AREA)
Description
2 SOI層
3 パッド絶縁膜
5 多結晶シリコン膜
6 レジスト膜
7 サイドウォール
8 BARC膜
9 レジスト膜
10 半導体部
10p1,10p2 p型半導体領域
10n1,10n2 n型半導体領域
11,12 多結晶シリコン膜
13 窒化膜
14 C−HM膜
15 中間層
16 レジスト膜
17 ゲート電極
18 クラスタボロンイオン
19 サイドウォール
21 層間絶縁膜
22 プラグ
23 配線
Claims (12)
- FIN状の半導体部により構成されるFIN型トランジスタを有する半導体装置の製造方法であって、
(a)基板上に形成された絶縁膜からなるBOX層の上に、SOI層およびパッド絶縁膜を形成する工程と、
(b)前記パッド絶縁膜および前記SOI層をエッチングし、第1方向に沿って延びる、前記パッド絶縁膜で覆われた上面、一方の側面、および他方の側面を有する前記FIN状の半導体部を形成する工程と、
(c)前記上面の前記パッド絶縁膜上、前記一方の側面上および前記他方の側面上に、前記FIN状の半導体部の一部を跨ぐように、前記第1方向と直交する第2方向に延びるゲート電極を形成する工程と、
(d)前記パッド絶縁膜を前記上面に有し、前記ゲート電極が形成されていない前記FIN状の半導体部の前記上面と前記一方の側面に、前記FIN状の半導体部の前記上面に垂直な法線方向に対して第1注入角度を有する方向から、第1不純物原子からなる第1クラスタイオンを注入する工程と、
(e)前記パッド絶縁膜を前記上面に有し、前記ゲート電極が形成されていない前記FIN状の半導体部の前記上面と前記他方の側面に、前記FIN状の半導体部の前記上面に垂直な法線方向に対して第2注入角度を有する方向から、前記第1不純物原子と等しい第2不純物原子からなる第2クラスタイオンを注入する工程と、
(f)前記FIN状の半導体部の前記上面、前記一方の側面および前記他方の側面に注入された前記第1クラスタイオンおよび前記第2クラスタイオンを活性化させて、前記ゲート電極の両側の前記FIN状の半導体部にソース領域およびドレイン領域の一部を構成する拡散領域を形成する工程と、
を含み、
前記パッド絶縁膜の厚さは、2〜5nmであることを特徴とする半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、前記パッド絶縁膜は、Siよりも融点が高い絶縁膜からなることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記パッド絶縁膜は、SiO2膜、Si3N4膜、SiC膜、またはSiON膜であることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記第1不純物原子は、B10原子、B18原子、またはB36原子であることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記第1不純物原子は、P4原子またはAs4原子であることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記第1クラスタイオンは、B18H22分子、B10H14分子、またはC2B10H12分子から形成されることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記(d)工程および前記(e)工程において、前記第1クラスタイオンまたは前記第2クラスタイオンは、互いに原子数の異なる原子を有することを特徴とする半導体装置の製造方法。
- 請求項7記載の半導体装置の製造方法において、前記第1クラスタイオンまたは前記第2クラスタイオンは、BxHy+、x=10〜18であることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記第1注入角度および前記第2注入角度は、5〜45度であることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記FIN状の半導体部の前記上面に注入された前記第1クラスタイオンおよび前記第2クラスタイオンの量と、前記FIN状の半導体部の前記一方の側面に注入された前記第1クラスタイオンの量との比は、1.4:1よりも小さいことを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記(f)工程の後、さらに、
(g)前記ゲート電極の側面にサイドウォールを形成する工程と、
(h)前記サイドウォールの両側の前記FIN状の半導体部に不純物イオンを注入する工程と、
(i)前記(h)工程で前記FIN状の半導体部に注入された前記不純物イオンを活性化させて、前記サイドウォールの両側の前記FIN状の半導体部に、ソース領域およびドレイン領域の他の一部を構成する拡散領域を形成する工程と、
を含むことを特徴とする半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、
前記拡散領域は、前記FIN型トランジスタのエクステンション領域であることを特徴とする半導体装置の製造方法。
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JP2010062836A JP5714831B2 (ja) | 2010-03-18 | 2010-03-18 | 半導体装置の製造方法 |
US13/046,750 US8252651B2 (en) | 2010-03-18 | 2011-03-13 | Method of manufacturing semiconductor device |
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US20100112795A1 (en) * | 2005-08-30 | 2010-05-06 | Advanced Technology Materials, Inc. | Method of forming ultra-shallow junctions for semiconductor devices |
CN103170447B (zh) | 2005-08-30 | 2015-02-18 | 先进科技材料公司 | 使用替代的氟化含硼前驱体的硼离子注入和用于注入的大氢化硼的形成 |
KR20110005683A (ko) | 2008-02-11 | 2011-01-18 | 어드밴스드 테크놀러지 머티리얼즈, 인코포레이티드 | 반도체 가공 시스템에서의 이온 공급원 세정법 |
US20110021011A1 (en) | 2009-07-23 | 2011-01-27 | Advanced Technology Materials, Inc. | Carbon materials for carbon implantation |
EP2494581B1 (en) | 2009-10-27 | 2016-05-18 | Entegris Inc. | Ion implantation system and method |
US8598022B2 (en) | 2009-10-27 | 2013-12-03 | Advanced Technology Materials, Inc. | Isotopically-enriched boron-containing compounds, and methods of making and using same |
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JP3378414B2 (ja) * | 1994-09-14 | 2003-02-17 | 株式会社東芝 | 半導体装置 |
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KR100526889B1 (ko) * | 2004-02-10 | 2005-11-09 | 삼성전자주식회사 | 핀 트랜지스터 구조 |
JP2005294789A (ja) | 2004-03-10 | 2005-10-20 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2007035957A (ja) | 2005-07-27 | 2007-02-08 | Toshiba Corp | 半導体装置とその製造方法 |
EP1892765A1 (en) * | 2006-08-23 | 2008-02-27 | INTERUNIVERSITAIR MICROELEKTRONICA CENTRUM vzw (IMEC) | Method for doping a fin-based semiconductor device |
JP2008066516A (ja) * | 2006-09-07 | 2008-03-21 | Elpida Memory Inc | 半導体装置及びその製造方法 |
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JP5184831B2 (ja) * | 2007-07-13 | 2013-04-17 | ルネサスエレクトロニクス株式会社 | フィン型トランジスタの形成方法 |
JP2009054705A (ja) * | 2007-08-24 | 2009-03-12 | Toshiba Corp | 半導体基板、半導体装置およびその製造方法 |
JP5410666B2 (ja) * | 2007-10-22 | 2014-02-05 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2009283772A (ja) * | 2008-05-23 | 2009-12-03 | Nec Corp | 半導体装置及び半導体装置の製造方法 |
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