JP2007294908A - ナノワイヤトランジスタ及びその製造方法 - Google Patents
ナノワイヤトランジスタ及びその製造方法 Download PDFInfo
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- 239000002070 nanowire Substances 0.000 title claims abstract description 236
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 239000000758 substrate Substances 0.000 claims abstract description 76
- 239000004065 semiconductor Substances 0.000 claims abstract description 34
- 239000013078 crystal Substances 0.000 claims abstract description 26
- 230000003647 oxidation Effects 0.000 claims description 33
- 238000007254 oxidation reaction Methods 0.000 claims description 33
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- 229910052710 silicon Inorganic materials 0.000 description 22
- 239000010703 silicon Substances 0.000 description 22
- 239000011258 core-shell material Substances 0.000 description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 229910052814 silicon oxide Inorganic materials 0.000 description 14
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- 238000005401 electroluminescence Methods 0.000 description 7
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- 239000002904 solvent Substances 0.000 description 3
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 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
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
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- 238000001039 wet etching Methods 0.000 description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
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- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
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- 230000005669 field effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 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
- 150000002500 ions Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002074 nanoribbon Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/0657—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by the shape of the body
- H01L29/0665—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by the shape of the body the shape of the body defining a nanostructure
- H01L29/0669—Nanowires or nanotubes
- H01L29/0673—Nanowires or nanotubes oriented parallel to a substrate
-
- 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
- H01L29/66742—Thin film unipolar transistors
- H01L29/66772—Monocristalline silicon transistors on insulating substrates, e.g. quartz substrates
-
- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
【解決手段】本発明のナノワイヤトランジスタは、チャネル領域として機能するコア部分13aと、コア部分13aの表面を被覆する絶縁性シェル部分13bとを有する少なくとも1本のナノワイヤ13と、ナノワイヤ13に接続されたソース電極14及びドレイン電極15と、ナノワイヤ13におけるコア部分13aの少なくとも一部における導電性を制御するゲート電極21とを備えたナノワイヤトランジスタである。コア部分13aはSiを含有する半導体単結晶から形成され、その長軸方向を横切る断面の輪郭は曲線である。絶縁性シェル部分13bは、Siを含有する絶縁物から形成され、ゲート絶縁膜の少なくとも一部として機能する。
【選択図】図3
Description
"High performance thin film transistors using semiconductor nanowires and nanoribbons", Nature, vol.425, 2003, pp.274.
以下、本発明によるナノワイヤトランジスタの第1の実施形態を説明する。
次に、図8(a)及び(b)を参照しながら、本発明によるナノワイヤトランジスタの第2の実施形態を説明する。図8(a)は、本実施形態のナノワイヤトランジスタの構成を模式的に示す上面図であり、図8(b)は、そのD−D’線断面図である。
次に、図12(a)及び(b)を参照しながら、本発明によるナノワイヤトランジスタの第3の実施形態を説明する。図12(a)は、本実施形態のナノワイヤトランジスタの構成を模式的に示す上面図であり、図12(b)は、そのE−E’線断面図である。
図14及び図15を参照しながら、本発明によるナノワイヤトランジスタを備えるディスプレイの実施形態を説明する。本実施形態のディプレイは、有機エレクトロルミネッセンス素子(有機EL素子)を用いたディスプレイである。
2 ゲート電極
3 ナノワイヤ
4 ゲート絶縁膜
5 ソース電極
6 ドレイン電極
11 プラスティック基板
12 ゲート電極
13 コア・シェルナノワイヤ
13a 半導体コア部分
13b 絶縁性シェル部分
14 ソース電極
15 ドレイン電極
16 レジスト
17 ゲート金属
20 溝
21 モールド
22 レーザー光
23 埋め込みソース電極
24 埋め込みドレイン電極
40 フレキシブル基板
41 Xドライバ
42 Yドライバ
43 X走査電極
44 Y走査電極
45 画素
50 スイッチ用トランジスタ
51 ドライバ用トランジスタ
Claims (17)
- チャネル領域として機能するコア部分と、前記コア部分の表面を被覆する絶縁性シェル部分とを有する少なくとも1本のナノワイヤと、
前記ナノワイヤに接続されたソース電極及びドレイン電極と、
前記ナノワイヤにおけるコア部分の少なくとも一部における導電性を制御するゲート電極と、
を備えたナノワイヤトランジスタであって、
前記コア部分はSiを含有する半導体単結晶から形成され、その長軸方向を横切る断面の輪郭は曲線であり、
前記絶縁性シェル部分は、Siを含有する絶縁物から形成され、ゲート絶縁膜の少なくとも一部として機能するナノワイヤトランジスタ。 - 前記コア部分の前記断面の輪郭は近似的に円または楕円である請求項1に記載のナノワイヤトランジスタ。
- 前記コア部分の直径は20nm以上、前記絶縁性シェル部分の厚さは15nm以上である請求項2に記載のナノワイヤトランジスタ。
- 前記絶縁性シェル部分は、Siの酸化物またはSiの窒化物から形成されている請求項3に記載のナノワイヤトランジスタ。
- 前記絶縁性シェル部分は前記ゲート電極に接触している請求項1に記載のナノワイヤトランジスタ。
- 前記ゲート絶縁膜の他の一部として機能する絶縁層が前記絶縁性シェル部分と前記ゲート電極との間に設けられている請求項1に記載のナノワイヤトランジスタ。
- 前記絶縁性シェル部分は、前記ソース電極またはドレイン電極と前記コア部分とが接触する領域からは除去されている請求項1に記載のナノワイヤトランジスタ。
- 前記ナノワイヤを支持する絶縁性基板を備える請求項1に記載のナノワイヤトランジスタ。
- 前記ゲート電極上に前記ソース電極から前記ドレイン電極に向かう方向に対して平行に複数個の溝が形成されており、前記溝に前記ナノワイヤが配置されている請求項5に記載のナノワイヤトランジスタ。
- 前記ソース電極及びドレイン電極上に前記ゲート電極に垂直な方向に複数個の溝が形成されており、この溝に前記ナノワイヤが配置されている請求項5に記載のナノワイヤトランジスタ。
- 前記溝の長手方向を横切る断面の形状は、V字型、U字型または矩型である請求項9または10に記載のナノワイヤトランジスタ。
- 前記基板が高分子材料、高分子材料及び無機材料の複合体から形成されている請求項8に記載のナノワイヤトランジスタ。
- 請求項1に記載のナノワイヤトランジスタを備える電子回路。
- 請求項13に記載の電子回路を備える表示パネル。
- 請求項14に記載の表示パネルを備える表示装置。
- チャネル領域として機能するコア部分と、前記コア部分の表面を被覆する絶縁性シェル部分とを有する少なくとも1本のナノワイヤを用意する工程と、
前記ナノワイヤに接続されるソース電極及びドレイン電極、及び前記ナノワイヤにおけるコア部分の少なくとも一部における導電性を制御するゲート電極を形成する工程と、
を備えるナノワイヤトランジスタの製造方法であって、
前記ナノワイヤを用意する工程と、
Siを含有する半導体単結晶から形成され、その長軸方向を横切る断面が多角形のナノワイヤ素材を形成する結晶成長工程と、
前記ナノワイヤ素材の表面を熱酸化することにより、前記表面に前記絶縁性シェル部分を形成する熱酸化工程と、
を含み、
前記熱酸化工程は、前記コア部分の長軸方向を横切る断面の輪郭が曲線になるように前記ナノワイヤ素材の表面を熱酸化する、ナノワイヤトランジスタの製造方法。 - 前記ナノワイヤ素材の直径は35nm以上であり、
前記熱酸化工程では、前記絶縁性シェル部分の厚さが15nm以上になるまで熱酸化を行う、請求項16に記載のナノワイヤトランジスタの製造方法。
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JP2007072887A JP4970997B2 (ja) | 2006-03-30 | 2007-03-20 | ナノワイヤトランジスタの製造方法 |
US13/399,521 US8368049B2 (en) | 2006-03-30 | 2012-02-17 | Nanowire transistor and method for fabricating the same |
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WO2008072479A1 (ja) * | 2006-12-13 | 2008-06-19 | Panasonic Corporation | ナノワイヤ及びナノワイヤを備える装置並びにそれらの製造方法 |
JP2012244088A (ja) * | 2011-05-24 | 2012-12-10 | Nippon Telegr & Teleph Corp <Ntt> | 電界効果トランジスタおよびその製造方法 |
KR101267222B1 (ko) | 2008-06-19 | 2013-05-23 | 경기대학교 산학협력단 | 나노와이어 트랜지스터와 이의 제조방법 |
JP2013179274A (ja) * | 2012-02-09 | 2013-09-09 | Nippon Telegr & Teleph Corp <Ntt> | 電界効果トランジスタおよびその製造方法 |
US8790998B2 (en) | 2008-12-16 | 2014-07-29 | Samsung Electronics Co., Ltd. | Method of forming core-shell type structure and method of manufacturing transistor using the same |
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WO2008072479A1 (ja) * | 2006-12-13 | 2008-06-19 | Panasonic Corporation | ナノワイヤ及びナノワイヤを備える装置並びにそれらの製造方法 |
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KR101267222B1 (ko) | 2008-06-19 | 2013-05-23 | 경기대학교 산학협력단 | 나노와이어 트랜지스터와 이의 제조방법 |
US8790998B2 (en) | 2008-12-16 | 2014-07-29 | Samsung Electronics Co., Ltd. | Method of forming core-shell type structure and method of manufacturing transistor using the same |
JP2012244088A (ja) * | 2011-05-24 | 2012-12-10 | Nippon Telegr & Teleph Corp <Ntt> | 電界効果トランジスタおよびその製造方法 |
JP2013179274A (ja) * | 2012-02-09 | 2013-09-09 | Nippon Telegr & Teleph Corp <Ntt> | 電界効果トランジスタおよびその製造方法 |
JP2015088647A (ja) * | 2013-10-31 | 2015-05-07 | 日本電信電話株式会社 | 電界効果トランジスタの製造方法 |
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US8368049B2 (en) | 2013-02-05 |
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