JP5203350B2 - 電界効果型トランジスタにおけるコンタクト抵抗を減少させるエピタキシャルシリコンゲルマニウム - Google Patents
電界効果型トランジスタにおけるコンタクト抵抗を減少させるエピタキシャルシリコンゲルマニウム Download PDFInfo
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- 229910000577 Silicon-germanium Inorganic materials 0.000 title claims description 31
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 title description 4
- 230000005669 field effect Effects 0.000 title description 2
- 229910021332 silicide Inorganic materials 0.000 claims description 19
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000116 mitigating effect Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000000873 masking effect Effects 0.000 claims description 2
- 239000003989 dielectric material Substances 0.000 claims 8
- 230000001939 inductive effect Effects 0.000 claims 2
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 11
- 230000008901 benefit Effects 0.000 description 6
- 238000002513 implantation Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021334 nickel silicide Inorganic materials 0.000 description 2
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
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- H01L21/8232—Field-effect technology
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- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823807—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
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- 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
- H01L21/823814—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the source or drain structures, e.g. specific source or drain implants or silicided source or drain structures or raised source or drain structures
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- H01L29/66409—Unipolar field-effect transistors
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- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
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- H01L29/7846—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate the means being located in the lateral device isolation region, e.g. STI
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- H01L29/7848—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate the means being located in the source/drain region, e.g. SiGe source and drain
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- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
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Description
シリコンゲルマニウム(SiGe)ソース及びドレイン領域が用いられ、かつこれらの領域上にシリサイドが形成されるpチャネルトランジスタ及びnチャネルトランジスタの製造方法が記載されている。以降の説明では、本発明を完全に理解してもらうため、たとえば注入エネルギーレベルのような多くの具体的詳細について説明されている。これらの具体的詳細がなくとも本発明が実施可能であることは当業者には明らかである。場合によっては、本発明を不要に不明確しないために、周知の製造プロセスの詳細については記載していない。
Claims (11)
- nチャネルトランジスタ及びpチャネルトランジスタの作製方法であって:
nチャネルトランジスタ及びpチャネルトランジスタのゲート構造に隣接するソース及びドレイン領域用の凹部をシリコン基板中に形成する工程;
前記凹部内にSiGeを成長させることで、前記nチャネルトランジスタ及びpチャネルトランジスタのソース及びドレイン領域を形成する工程;及び
前記nチャネルトランジスタのソース領域の一側面及びドレイン領域の一側面に設けられ、かつ誘電材料で満たされた分離溝から前記誘電材料をエッチングすることによって、前記pチャネルトランジスタのチャネル領域での歪みに影響を及ぼすことなく、前記SiGeを成長させた結果発生した前記nチャネルトランジスタのチャネル領域での歪みを緩和する工程;
を有する方法。 - 前記分離溝の全てに存在する前記誘電材料の全てがエッチングされない、請求項1に記載の方法。
- 前記ソース及びドレイン領域上にシリサイド金属を形成する工程を有する、請求項1に記載の方法。
- 前記ソース及びドレイン領域上にシリサイド金属を形成する工程を有する、請求項2に記載の方法。
- 前記シリサイド金属がニッケルを有する、請求項3に記載の方法。
- nチャネルトランジスタの作製方法であって:
シリコン基板中に誘電材料で満たされた分離溝を形成する工程;
前記分離溝に隣接する、前記シリコン基板中に形成された凹部内にSiGeエピタキシャルソース及びドレイン領域を成長させる工程;
前記SiGeエピタキシャルソース及びドレイン領域内での歪みが緩和されるように前記分離溝の少なくとも一部から前記誘電材料をエッチングする工程;並びに
前記SiGeエピタキシャルソース及びドレイン領域上にシリサイド金属を形成する工程;
を有する方法。 - 前記シリサイド金属がニッケルを用いて形成される、請求項6に記載の方法。
- 前記の分離溝内の誘電材料が二酸化シリコンである、請求項7に記載の方法。
- 前記分離溝の少なくとも一部をマスクすることで、前記分離溝の曝露部分がエッチングされるときでも前記のマスクされた部分はエッチングされないようにする工程、を有する、請求項6に記載の方法。
- nチャネルトランジスタ及びpチャネルトランジスタの両方を有する集積回路であって、
当該集積回路は:
前記nチャネルトランジスタ及びpチャネルトランジスタの両方のソース及びドレイン領域で歪み発生させる、歪み誘起手段;並びに
前記nチャネルトランジスタのソース及びドレイン領域での歪みが前記nチャネルトランジスタのチャネル領域での歪みを発生させることを防止しながら前記pチャネルトランジスタのチャネル領域での歪みを防止しない歪み緩和手段;
を有し、
前記歪み誘起手段は、シリコン基板内に形成される前記pチャネルトランジスタと前記nチャネルトランジスタの両方の凹部内で成長するSiGeソース及びドレイン領域で、
前記歪み緩和手段は、前記nチャネルトランジスタのソースの一領域及びドレイン領域の一領域に設けられた分離溝を有し、
前記分離溝は、前記SiGeソース及びドレイン領域の形成前に分離され、かつ誘電材料によって充填され、前記SiGeソース及びドレイン領域の形成後に、前記誘電材料を少なくとも部分的に除去することによって前記pチャネルトランジスタのソース一領域及びドレイン領域の一領域に設けられた分離溝に対して凹む、
集積回路。 - 前記nチャネルトランジスタ及びpチャネルトランジスタのソース及びドレイン領域上にシリサイドを有する、請求項10に記載の集積回路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/395,939 | 2006-03-31 | ||
US11/395,939 US7566605B2 (en) | 2006-03-31 | 2006-03-31 | Epitaxial silicon germanium for reduced contact resistance in field-effect transistors |
PCT/US2007/007707 WO2007126909A1 (en) | 2006-03-31 | 2007-03-29 | Epitaxial silicon germanium for reduced contact resistance in field-effect transistors |
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JP2009529803A JP2009529803A (ja) | 2009-08-20 |
JP5203350B2 true JP5203350B2 (ja) | 2013-06-05 |
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JP2009500532A Active JP5203350B2 (ja) | 2006-03-31 | 2007-03-29 | 電界効果型トランジスタにおけるコンタクト抵抗を減少させるエピタキシャルシリコンゲルマニウム |
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US (2) | US7566605B2 (ja) |
JP (1) | JP5203350B2 (ja) |
KR (1) | KR101017477B1 (ja) |
CN (1) | CN101416297B (ja) |
DE (1) | DE112007000662B4 (ja) |
GB (1) | GB2448258B (ja) |
HK (1) | HK1131469A1 (ja) |
WO (1) | WO2007126909A1 (ja) |
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JP2009032986A (ja) * | 2007-07-27 | 2009-02-12 | Toshiba Corp | 半導体装置およびその製造方法 |
US7833848B2 (en) * | 2007-09-28 | 2010-11-16 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method for removing hard masks on gates in semiconductor manufacturing process |
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DE102007052053B4 (de) * | 2007-10-31 | 2012-02-02 | Advanced Micro Devices, Inc. | Eine Zugverformungsquelle unter Anwendung von Silizium/Germanium-Material in global verformtem Silizium |
US7749847B2 (en) * | 2008-02-14 | 2010-07-06 | International Business Machines Corporation | CMOS integration scheme employing a silicide electrode and a silicide-germanide alloy electrode |
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US8110877B2 (en) * | 2008-12-19 | 2012-02-07 | Intel Corporation | Metal-insulator-semiconductor tunneling contacts having an insulative layer disposed between source/drain contacts and source/drain regions |
US7670934B1 (en) * | 2009-01-26 | 2010-03-02 | Globalfoundries Inc. | Methods for fabricating MOS devices having epitaxially grown stress-inducing source and drain regions |
DE102009006800B4 (de) * | 2009-01-30 | 2013-01-31 | Advanced Micro Devices, Inc. | Verfahren zur Herstellung von Transistoren und entsprechendes Halbleiterbauelement |
US8313999B2 (en) * | 2009-12-23 | 2012-11-20 | Intel Corporation | Multi-gate semiconductor device with self-aligned epitaxial source and drain |
US8936976B2 (en) | 2009-12-23 | 2015-01-20 | Intel Corporation | Conductivity improvements for III-V semiconductor devices |
TWI585861B (zh) * | 2010-02-10 | 2017-06-01 | 格羅方德半導體公司 | 具有磊晶成長之應力引發源極與汲極區之金氧半導體裝置的製造方法 |
KR101730939B1 (ko) | 2010-06-09 | 2017-05-12 | 삼성전자 주식회사 | 반도체 소자 및 그 제조방법 |
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HK1131469A1 (en) | 2010-01-22 |
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GB2448258A (en) | 2008-10-08 |
CN101416297A (zh) | 2009-04-22 |
DE112007000662T5 (de) | 2009-04-30 |
CN101416297B (zh) | 2013-10-23 |
GB2448258B (en) | 2011-08-17 |
US7851291B2 (en) | 2010-12-14 |
KR101017477B1 (ko) | 2011-02-25 |
GB0812725D0 (en) | 2008-08-20 |
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