JP5452322B2 - 改善されたオン/オフ電流比の高移動度多重ゲートトランジスタ - Google Patents
改善されたオン/オフ電流比の高移動度多重ゲートトランジスタ Download PDFInfo
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- JP5452322B2 JP5452322B2 JP2010085075A JP2010085075A JP5452322B2 JP 5452322 B2 JP5452322 B2 JP 5452322B2 JP 2010085075 A JP2010085075 A JP 2010085075A JP 2010085075 A JP2010085075 A JP 2010085075A JP 5452322 B2 JP5452322 B2 JP 5452322B2
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- 239000004065 semiconductor Substances 0.000 claims description 135
- 239000000463 material Substances 0.000 claims description 54
- 239000000758 substrate Substances 0.000 claims description 18
- 239000010410 layer Substances 0.000 description 57
- 229910052732 germanium Inorganic materials 0.000 description 13
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000003989 dielectric material Substances 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 2
- 229910003855 HfAlO Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 229910021478 group 5 element Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- -1 Al 2 O 3 Chemical compound 0.000 description 1
- 229910017115 AlSb Inorganic materials 0.000 description 1
- 229910005542 GaSb Inorganic materials 0.000 description 1
- 229910004129 HfSiO Inorganic materials 0.000 description 1
- 229910000673 Indium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-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
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 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
- 238000002513 implantation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000000926 separation method 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
- 239000002344 surface layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/80—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier
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- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Thin Film Transistor (AREA)
Description
[実施例]
6 ドレイン領域
8 ゲート電極
10 ベース材料
12 ゲート誘電体
20 フィン
22 中央フィン
24 半導体層
26 ハードマスク
30 シャロートレンチアイソレーション(STI)領域
32 凹所
40 空乏層
44 半導体層
100 FinFET
200 基板
Claims (8)
- 基板、
第1半導体材料で形成された中央フィンと、前記中央フィンの対向側壁上の第1部分と第2部分から成る半導体層とを備える前記基板上の半導体フィンであって、前記半導体層は、前記第1半導体材料とは異なる第2半導体材料を備え、前記第1半導体材料は、前記第2半導体材料のバンドギャップより低いバンドギャップを有し、
前記第1部分と前記中央フィンの間の前記第1部分、及び
前記第2部分と前記中央フィンの間の前記第2部分を含む追加半導体層を備え、
前記追加半導体層は、前記中央フィンのバンドギャップより大きく、かつ、前記半導体層のバンドギャップより低いバンドギャップを有し、
前記半導体フィンの側壁の周囲を包むゲート電極、及び
前記半導体フィンの対向端にあるソース領域とドレイン領域を備えた多重ゲートトランジスタにおいて、
前記中央フィンと前記半導体層の各々は、前記ソース領域から前記ドレイン領域に延伸することを特徴とする多重ゲートトランジスタ。 - 前記中央フィンと前記半導体層は、量子井戸を形成する請求項1に記載の多重ゲートトランジスタ。
- 前記第1半導体材料は、前記第2半導体材料の伝導バンドより低い伝導バンドを有する請求項1に記載の多重ゲートトランジスタ。
- 前記半導体層の第1部分の外部側壁上の第1部分と前記半導体層の第2部分の外部側壁上の第2部分から成るゲート誘電体を更に備えた請求項1に記載の多重ゲートトランジスタ。
- 前記ゲート電極は、前記半導体層の第1部分と第2部分にコンタクトする請求項1に記載の多重ゲートトランジスタ。
- 前記半導体層は、前記中央フィンの上表面の第3部分を更に備え、前記半導体層の第1部分を前記半導体層の第2部分に接続する請求項1に記載の多重ゲートトランジスタ。
- 前記中央フィンの上表面のハードマスクを更に備え、前記半導体層の第1部分を前記半導体層の第2部分から分離する(disconnecting)請求項1に記載の多重ゲートトランジスタ。
- 前記ハードマスクは、前記半導体層の第1部分と第2部分上に直接延伸する請求項7に記載の多重ゲートトランジスタ。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US16580309P | 2009-04-01 | 2009-04-01 | |
US61/165,803 | 2009-04-01 | ||
US12/639,653 | 2009-12-16 | ||
US12/639,653 US8674341B2 (en) | 2009-04-01 | 2009-12-16 | High-mobility multiple-gate transistor with improved on-to-off current ratio |
Publications (2)
Publication Number | Publication Date |
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JP2010258443A JP2010258443A (ja) | 2010-11-11 |
JP5452322B2 true JP5452322B2 (ja) | 2014-03-26 |
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Application Number | Title | Priority Date | Filing Date |
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JP2010085075A Active JP5452322B2 (ja) | 2009-04-01 | 2010-04-01 | 改善されたオン/オフ電流比の高移動度多重ゲートトランジスタ |
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Country | Link |
---|---|
US (4) | US8674341B2 (ja) |
JP (1) | JP5452322B2 (ja) |
KR (1) | KR101145959B1 (ja) |
CN (1) | CN101853882B (ja) |
TW (1) | TWI416730B (ja) |
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DE102008030853B4 (de) * | 2008-06-30 | 2014-04-30 | Globalfoundries Dresden Module One Limited Liability Company & Co. Kg | Dreidimensionaler Transistor mit einer Doppelkanal-Konfiguration |
US8816391B2 (en) | 2009-04-01 | 2014-08-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | Source/drain engineering of devices with high-mobility channels |
CN101853882B (zh) | 2009-04-01 | 2016-03-23 | 台湾积体电路制造股份有限公司 | 具有改进的开关电流比的高迁移率多面栅晶体管 |
US8455860B2 (en) | 2009-04-30 | 2013-06-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Reducing source/drain resistance of III-V based transistors |
US9768305B2 (en) | 2009-05-29 | 2017-09-19 | Taiwan Semiconductor Manufacturing Company, Ltd. | Gradient ternary or quaternary multiple-gate transistor |
US8617976B2 (en) * | 2009-06-01 | 2013-12-31 | Taiwan Semiconductor Manufacturing Company, Ltd. | Source/drain re-growth for manufacturing III-V based transistors |
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US8344425B2 (en) * | 2009-12-30 | 2013-01-01 | Intel Corporation | Multi-gate III-V quantum well structures |
US8455929B2 (en) | 2010-06-30 | 2013-06-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Formation of III-V based devices on semiconductor substrates |
KR101160084B1 (ko) * | 2011-02-01 | 2012-06-26 | 서울대학교산학협력단 | 낮은 누설전류를 갖는 반도체 메모리 소자 |
US8962400B2 (en) | 2011-07-07 | 2015-02-24 | Taiwan Semiconductor Manufacturing Company, Ltd. | In-situ doping of arsenic for source and drain epitaxy |
US8890207B2 (en) * | 2011-09-06 | 2014-11-18 | Taiwan Semiconductor Manufacturing Company, Ltd. | FinFET design controlling channel thickness |
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US20130200459A1 (en) * | 2012-02-02 | 2013-08-08 | International Business Machines Corporation | Strained channel for depleted channel semiconductor devices |
US8785285B2 (en) | 2012-03-08 | 2014-07-22 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor devices and methods of manufacture thereof |
KR101823105B1 (ko) * | 2012-03-19 | 2018-01-30 | 삼성전자주식회사 | 전계 효과 트랜지스터의 형성 방법 |
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US20100252816A1 (en) | 2010-10-07 |
US10109748B2 (en) | 2018-10-23 |
US20140134815A1 (en) | 2014-05-15 |
CN101853882A (zh) | 2010-10-06 |
TWI416730B (zh) | 2013-11-21 |
CN101853882B (zh) | 2016-03-23 |
US8674341B2 (en) | 2014-03-18 |
US9590068B2 (en) | 2017-03-07 |
TW201114037A (en) | 2011-04-16 |
US20150072495A1 (en) | 2015-03-12 |
JP2010258443A (ja) | 2010-11-11 |
KR101145959B1 (ko) | 2012-05-15 |
US8927371B2 (en) | 2015-01-06 |
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