JP5289671B2 - 炭素ナノチューブチャンネルを含む半導体装置のトランジスタ及びその製造方法 - Google Patents
炭素ナノチューブチャンネルを含む半導体装置のトランジスタ及びその製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 43
- 239000002041 carbon nanotube Substances 0.000 title description 43
- 229910021393 carbon nanotube Inorganic materials 0.000 title description 43
- 229910052751 metal Inorganic materials 0.000 claims description 51
- 239000002184 metal Substances 0.000 claims description 51
- 239000002071 nanotube Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 11
- 239000000969 carrier Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- H10K19/10—Integrated devices, or assemblies of multiple devices, comprising at least one organic element specially adapted for rectifying, amplifying, oscillating or switching, covered by group H10K10/00 comprising field-effect transistors
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
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- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823462—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate insulating layers, e.g. different gate insulating layer thicknesses, particular gate insulator materials or particular gate insulator implants
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- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
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- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
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- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/481—Insulated gate field-effect transistors [IGFETs] characterised by the gate conductors
- H10K10/482—Insulated gate field-effect transistors [IGFETs] characterised by the gate conductors the IGFET comprising multiple separately-addressable gate electrodes
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Description
図3を参照すれば、本発明の第1実施例による炭素ナノチューブトランジスタ(以下、第1トランジスタ)は、基板40を備え、基板40上に第1絶縁膜42を備える。第1絶縁膜42は、下記の第2絶縁膜50に比べて誘電率の低い物質で構成されることが望ましい。第1絶縁膜42は、酸化珪素膜(SiO2)でありうる。
前記第1トランジスタと異なる部分についてのみ説明し、同じ部材については、第1トランジスタに使用した参照番号をそのまま使用する。
そのため、本発明の範囲は、説明された実施例によって決定されず、特許請求の範囲に記載された技術的思想によって決定されねばならない。
42…第1絶縁膜、
44…炭素ナノチューブチャンネル、
46…第1金属層、
48…第2金属層、
50…第2絶縁膜、
52、72…第1ゲート電極、
54、76…第2ゲート電極、
57…第3ゲート電極、
74…第3絶縁膜。
Claims (11)
- 基板と、
前記基板上に備えられた第1絶縁膜と、
前記第1絶縁膜上に離隔されて形成された第1及び第2金属層と、
前記第1金属層と第2金属層との間の前記第1絶縁膜上に備えられ、両側がそれぞれ前記第1及び第2金属層に接触されたナノチューブチャンネルと、
前記第1及び第2金属層と前記ナノチューブチャンネルとを覆う第2絶縁膜と、
前記第2絶縁膜を介して前記ナノチューブチャンネル上に備えられており、電気的に絶縁された第1及び第2ゲート電極と、を備え、
前記第1及び第2ゲート電極は、それぞれに独立的に電圧が印加されるとき、前記ナノチューブチャンネルの全域で電気的にポテンシャルを均一にするために、前記第1及び第2金属層のうち隣接した金属層と重畳することを特徴とする半導体装置のトランジスタ。 - 前記第2絶縁膜は、前記第1絶縁膜より誘電率が高い高誘電膜であることを特徴とする請求項1に記載の半導体装置のトランジスタ。
- 前記第1及び第2ゲート電極は、前記第2絶縁膜上で所定距離だけ離隔されたことを特徴とする請求項1に記載の半導体装置のトランジスタ。
- 前記第2絶縁膜上に前記第1ゲート電極を覆う第3絶縁膜が存在することを特徴とする請求項1に記載の半導体装置のトランジスタ。
- 前記第3絶縁膜上に前記第2ゲート電極が備えられており、前記第1及び第2ゲート電極は、一部が重畳されたことを特徴とする請求項4に記載の半導体装置のトランジスタ。
- 前記第2絶縁膜上に前記第1及び第2ゲート電極と絶縁された第3ゲート電極がさらに備えられたことを特徴とする請求項1に記載の半導体装置のトランジスタ。
- 基板上に第1絶縁膜を形成する工程と、
前記第1絶縁膜上にナノチューブチャンネルを形成する工程と、
前記第1絶縁膜上に前記ナノチューブチャンネルの一側と接触される第1金属層と、前記第1金属層に対向する前記ナノチューブチャンネルの他側と接触される第2金属層とを形成する工程と、
前記第1及び第2金属層と前記ナノチューブチャンネル上に第2絶縁膜を形成する工程と、
前記第2絶縁膜の前記ナノチューブチャンネルと接触された領域上に絶縁された第1及び第2ゲート電極を形成する工程と、を含み、
前記第1及び第2ゲート電極は、それぞれに独立的に電圧が印加されるとき、前記ナノチューブチャンネルの全域で電気的にポテンシャルを均一にするために、前記第1及び第2金属層のうち隣接した金属層と重畳するように形成することを特徴とする半導体装置のトランジスタの製造方法。 - 前記第2絶縁膜は、前記第1絶縁膜より誘電率が高い誘電膜から形成することを特徴とする請求項7に記載の半導体装置のトランジスタの製造方法。
- 前記第1及び第2ゲート電極の形成工程で、前記第1及び第2ゲート電極を所定距離だけ分離させて形成することを特徴とする請求項7に記載の半導体装置のトランジスタの製造方法。
- 前記絶縁された第1及び第2ゲート電極を形成する工程は、
前記第2絶縁膜上に前記第1ゲート電極を形成する工程と、
前記第2絶縁膜上に前記第1ゲート電極を覆う第3絶縁膜を形成する工程と、
前記第3絶縁膜上に一部が前記第1ゲート電極と重畳されるように前記第2ゲート電極を形成する工程と、をさらに含むことを特徴とする請求項7に記載の半導体装置のトランジスタの製造方法。 - 前記第2絶縁膜の前記ナノチューブチャンネルと接触された領域上に前記第1及び第2ゲート電極と絶縁される第3ゲート電極をさらに形成することを特徴とする請求項7に記載の半導体装置のトランジスタの製造方法。
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KR10-2004-0073082 | 2004-09-13 | ||
KR1020040073082A KR101025846B1 (ko) | 2004-09-13 | 2004-09-13 | 탄소나노튜브 채널을 포함하는 반도체 장치의 트랜지스터 |
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EP (1) | EP1655791A1 (ja) |
JP (1) | JP5289671B2 (ja) |
KR (1) | KR101025846B1 (ja) |
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JP4036454B2 (ja) * | 2003-05-30 | 2008-01-23 | 独立行政法人理化学研究所 | 薄膜トランジスタ。 |
JP4228204B2 (ja) * | 2003-07-07 | 2009-02-25 | セイコーエプソン株式会社 | 有機トランジスタの製造方法 |
US6970373B2 (en) * | 2003-10-02 | 2005-11-29 | Intel Corporation | Method and apparatus for improving stability of a 6T CMOS SRAM cell |
US7180107B2 (en) * | 2004-05-25 | 2007-02-20 | International Business Machines Corporation | Method of fabricating a tunneling nanotube field effect transistor |
US20060063318A1 (en) * | 2004-09-10 | 2006-03-23 | Suman Datta | Reducing ambipolar conduction in carbon nanotube transistors |
US20060180859A1 (en) * | 2005-02-16 | 2006-08-17 | Marko Radosavljevic | Metal gate carbon nanotube transistor |
-
2004
- 2004-09-13 KR KR1020040073082A patent/KR101025846B1/ko active IP Right Grant
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2005
- 2005-09-09 EP EP05255560A patent/EP1655791A1/en not_active Ceased
- 2005-09-12 JP JP2005264197A patent/JP5289671B2/ja not_active Expired - Fee Related
- 2005-09-13 US US11/224,313 patent/US20080121996A1/en not_active Abandoned
- 2005-09-13 CN CNA2005100995275A patent/CN1767212A/zh active Pending
Also Published As
Publication number | Publication date |
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JP2006086528A (ja) | 2006-03-30 |
US20080121996A1 (en) | 2008-05-29 |
EP1655791A1 (en) | 2006-05-10 |
KR20060024193A (ko) | 2006-03-16 |
CN1767212A (zh) | 2006-05-03 |
KR101025846B1 (ko) | 2011-03-30 |
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