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低角入射分子線エピタキシ法による絶縁膜上への半導体単結晶薄膜の横方向成長

Research Project

Project/Area Number 12450006
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionMeijo University

Principal Investigator

西永 頌  名城大, 理工学部, 教授 (10023128)

Co-Investigator(Kenkyū-buntansha) 成塚 重弥  名城大学, 理工学部, 助教授 (80282680)
Project Period (FY) 2000 – 2003
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 2002: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2001: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2000: ¥6,900,000 (Direct Cost: ¥6,900,000)
Keywords分子線エピタキシ / 低角入射分子線 / 横方向成長 / 面間拡散 / 選択成長 / 絶縁膜上半導体 / Si基盤上の化合物半導体 / GaAs / 絶縁膜上半導体薄膜 / Si基板上の化合物半導体
Research Abstract

本研究においては、低角入射分子線エピタキシという新しい薄膜成長法を提案し、選択成長と組み合わせることにより非晶質絶縁膜上に無転位半導体薄膜を成長させることを目的としている。我々は、この成長法を低角入射マイクロチャンネルエピタキシ(Low-Angle Incident Microchannel Epitaxy, LAIMCE)と名付けた。この方法の主要なアイデアは、気相成長において二つの結晶面の間を成長原子が表面拡散により移動する現象(面間拡散と呼ぶ)を利用し、縦方向成長を抑制し、横方向成長を増加させることにより絶縁膜上の広い無転位半導体薄膜を成長させるところにある。
本年度はLAIMCEの実現のため欠くことのできない非晶質絶縁膜(SiO_2膜を使用)上での選択成長について調べた。分子線結晶成長(MBE)では、選択成長は表面原子の再蒸発によっており、再現性の高い選択成長は困難である。なぜなら、SiO_2上とGaAs成長表面上での再蒸発の差はわずかであり、加えて、GaAs成長層の表面モホロジーが再蒸発により大幅に劣化するからである。μ-RHEED SEM-MBE装置によるその場観察を用い、選択成長の様子を詳細に調べた結果、選択成長の実現にはSiO_2膜からの再蒸発のみならず表面原子の拡散も重要な過程であることが判明した。成長領域への表面原子の拡散・流れ込みにより、成長領域近傍のSiO_2上は選択性が大幅に向上する。この現象をうまく利用すれば、選択性の高い良好な選択成長を実現することが可能となる。
一方、横方向成長のメカニズムを解明するためには、より広い成長条件に関して依存性を調べる必要がある。そのためメサ基板の利用を考案した。メサ基板を用いれば、選択成長が難しい条件下でも横方向成長を達成することが可能であり、より広い成長条件に対する横方向成長の挙動を検討することが可能となる。

Report

(2 results)
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] T.Ogura, D.Kishimoto, T.Nishinaga: "Effect of As molecular species on inter-surface diffusion in GaAs MBE for ridge structurefabrication"Journal of Crystal Growth. 226. 179-184 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Takada, T.Ogura, T.Nishinaga: "Real-time control of the pyramidal structures in MBE of GaAs on GaAs(111)B patterned substrates"Proceedings of The Fifth symposium on Atomic-Scale Surface and Interface Dynamics. 1-6 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] D.Kishimoto, T.Nishinaga, S.Naritsuka, H.Sakaki: "Start of 2D-nucleation by increasing (111)B-facet width in (111)B-(001) intersurface diffusion"Proceedings of The Fifth symposium on Atomic-Scale Surface and Interface Dynamics. 7-11 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Nishinaga: "Intersurface diffusion and fabrication of microstructures"Proceedings of the 6th International Symposium on Advanced Physical Fields. 1-7 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Suzuki, S.Naritsuka, T.Nishinaga: "Dependence of selective area growth on incident angle of Ga-beam in MBE of GaAs"Extended abstracts of the 20th Electronic Materials Symposium, Nara. 195-196 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Nishinaga: "Microchannel epitaxy of GaAs by Molecular Beam Epitaxy"The 6th Polish Conference on Crystal Growth, Poznan. (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 西永 頌(分担執筆): "Advance in Crystal Growth Research"Elsevier. 419 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] G.Bacchin and T.Nishinaga: "A new way to achieve both selective and lateral growth by molecular beam epitaxy : low angle incidence microchannel epitaxy"Journal of Crystal. 208. 1-10 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] D.Kishimoto,T.Noda,Y.Nakamura,H.Sakaki and T.Nishinaga: "Effect of substrate rotation on inter-surface diffusion in MBE for mesa-structure fabrication"J.Crystal Growth. 209. 591-598 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Ogura and T.Nishinaga: "Efficiency difference in Ga adatom incorporation in MBE growth of GaAs with As2 and As4 molecular beams"Journal of Crystal Growth. 211. 416-420 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] D.Kishimoto,T.Nishinaga,S.Naritsuka,T.Noda,Y.Nakamura and H.Sakaki: "(111)B growth elimination in GaAs MBE of (001)-(111)B mesa structure by suppressing 2D-nucleation"Journal of Crystal Growth. 212. 373-378 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Nishinaga and G.Bacchin: "Selective area MBE of GaAs,AlAs,and their alloys by periodic supply epitaxy"Thin Solid Films. 367. 6-12 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] D.Kishimoto,T.Ogura,A.Yamashiki,T.Nishinaga,S.Naritsuka and H.Sakaki: "2D-nucleation on (111)B micro-facet studied by microprobe-RHEED in GaAs MBE for mesa-structure fablication"Journal of Crystal Growth. 216. 1-5 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Umeno,G.Bacchin and T.Nishinaga: "AFM analysis of sidewall formation in low angle incidence microchannel epitaxy of GaAs"Journal of Crystal Growth. 220. 355-363 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] G.Bacchin,A.Umeno and hinaga: "Selective and lateral growth of GaAs on GaAs/Si(001)by low angle incidence microchannel epitaxy"Proceedings of The Fourth Symposium on Atomic-Scale Surface and Interface Dynamics. 11-16 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] D.Kishimoto,T.Ogura,A.Yamshiki,T.Nishinaga,S.Naritsuka and H.Sakaki: "Real-time detection of 2D-nucleation on (111)B side microfacet of mesa-structurein MBE of GaAs"Proceedings of The Fourth symposium on Atomic-Scale Surface and Interface Dynamics. 17-22 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Ogura,D.Kishimoto,and T.Nishinaga: "Effect of As molecular species on inter-surface diffusion in GsAs MBE for ridge structure fabrication"Proceedings of The Fourth symposium on Atomic-Scale Surface and Interface Dynamics. 23-28 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Umeno,G.Bacchin and T.Nishinaga: "Dependence of lateral growth on sidewall formation in low angle incidence microchannel epitaxy of GaAs"Extended abstracts of the 19th Electronic Materials Symposium, Izu-Nagaoka. 83-86 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] G.Bacchin,A.Umeno and T.Nishinaga: "Selective and lateral growth dependence on Ga beam incidence angle in low angle incidence microchannel epitaxy of GaAs"Extended abstracts of the 19th Electronic Materials Symposium, Izu-Nagaoka. 87-90 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] G.Bacchin,A.Umeno and T.Nishinaga: "Lateral growth in molecular beam epitaxy by low angle incidence microchannel epitaxy"Applied Surface Science. 159/160. 360-367 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Toyoda,Y.S.Hiraoka,S.Naritsuka and T.Nishinaga: "Ab initio calculations on the dissociative reaction of As4 molecules "Applied Surface Science,. 159/160. 270-276 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Nishinaga: "Real-time monitoring of MBE microstructure fabrication by microprove-RHEED/SEM"The 4th Japan-Russia Seminar on Semiconductor Surfaces,13a-1,Nagoya. (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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