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人工IV族半導体の形成と光・電子物性制御

Research Project

Project/Area Number 11232202
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe University of Tokyo

Principal Investigator

白木 靖寛  東京大学, 大学院・工学系研究科, 教授 (00206286)

Co-Investigator(Kenkyū-buntansha) 宇佐美 徳隆  東北大学, 金属材料研究所, 助教授 (20262107)
黄 晋二  東京大学, 大学院・工学系研究科, 助手 (50323663)
尾鍋 研太郎  東京大学, 大学院・新領域創成科学研究科, 教授 (50204227)
中川 清和  山梨大学, 大学院・医学工学総合研究部, 教授 (40324181)
末光 眞希  東北大学, 電気通信研究所, 助教授 (00134057)
片山 竜二  東京大学, 大学院・新領域創成科学研究科, 助手
長田 俊人  東京大学, 物性研究所, 助教授 (00192526)
櫻庭 政夫  東北大学, 電気通信研究所, 助手 (30271993)
Project Period (FY) 1999 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥250,900,000 (Direct Cost: ¥250,900,000)
Fiscal Year 2003: ¥28,600,000 (Direct Cost: ¥28,600,000)
Fiscal Year 2002: ¥31,800,000 (Direct Cost: ¥31,800,000)
Fiscal Year 2001: ¥56,400,000 (Direct Cost: ¥56,400,000)
Fiscal Year 2000: ¥65,100,000 (Direct Cost: ¥65,100,000)
Fiscal Year 1999: ¥69,000,000 (Direct Cost: ¥69,000,000)
Keywords人工IV族半導体 / シリコンゲルマニウム / 光エレクトロニクス / 電子物性 / 光物性 / 電界効果型トランジスタ / 電界効果型トランジス / 発光ダイオード / CMP / 低温Si層 / SiGe / 変調ドーピング / 電界効果トランジスタ / 島状成長 / 自己触媒 / リン吸着デジタル制御 / 初期酸化
Research Abstract

平成15年度の研究成果は、大きく分けて次の3つの項目に分けられる。(1)良質な緩和SiGe疑似基板作製に関する研究、(2)歪みSiおよびGeチャネルトランジスタの試作と評価、(3)SiGe量子構造の発光特性の評価、(4)Si中のN原子原子層ドーピング、である。(1)においては、イオン打ちこみを行ったSi基板上のSiGe薄膜エピタキシャル成長について評価し、イオン打ち込みによって、平坦でありながら、薄くかつ緩和率の高いSiGe疑似基板を作製できる技術の確立に成功した。(2)では、歪みSiチャネル素子は高移動度を有しているが、チャネル端の自由表面による応力緩和が素子を微細化することによりチャネル全体に及ぶと考えられるため、微細素子では歪みSi薄膜が示す高キャリア移動度が達成されない懸念がある。我々は、実験的に、メサ構造の両端部近傍では歪み緩和が起こっていること、またメサ構造の歪み分布が素子サイズに大きく依存すること、さらにシミュレーションにより、バンド構造が大きく変化することを見出し、今後の素子設計の基礎データを得た。(3)では、SiGe量子構造と並んでSiベース発光材料として期待されている鉄シリサイドの発光とSiGe量子構造の発光との比較を行った。両者の発光強度および温度特性はほぼ同じであり、化合物半導体の発光強度に比べると3桁から4桁低いことがわかった。実用化を考えた場合、SiGe量子構造および鉄シリサイド材料の更なる改善が必要であることが示された。(4)では、N原子層形成si(100)表面上において、500℃という低温でのCVD法によりSi薄膜がエピタキシャル成長することを見いだし、3nm間隔の多層N原子層ドーピング構造を実現した。また、Si(100)基板非加熱下での低エネルギーECR Arプラズマ支援により、原子層オーダでのSiエピタキシャル成長制御を実現するとともに、Si薄膜の結晶性劣化要因はArイオン打ち込みによるダメージであることを見いだし、Siエピタキシャル薄膜の高品質化を実現した。本研究で得られた成果については、平成16年度の「成果とりまとめ」において、ワークショップおよび成果報告冊子の作成を通してまとめる予定である。

Report

(5 results)
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] K.Sawano, S.Koh, Y.Shiraki, N.Usami, K.Nakagawa: "In-plane strain fluctuation in strained-Si/SiGe heterostructures"APPLIED PHYSICS LETTERS. 83. 4339-4341 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Sawano, Y.Hirose, Y.Ozawa, Koh, J.Yamanaka, K.Nakagawa, T.Hattori, Y.Shiraki: "Enhancement of strain relaxation of SiGe thin layers by pre-ion-implantation into Si substrates"JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS. 42. L735-L737 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Sawano, K.Kawaguchi, S.Koh, Y.Hirose, J.Yamanaka, K.Nakagawa, T.Hattori, Y.Shiraki: "Surface planarization of strain-relaxed SiGe buffer layers by CMP and post cleaning"JOURNAL OF THE ELECTROCHEMICAL SOCIETY. 150. G376-G379 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Jeong, M.Sakuraba, J.Murota: "Atomic-Layer Doping in Si by Alternately Supplied NH_3 and SiH_4"Appl.Phys.Lett.. 82. 3472-3474 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Sakuraba, D.Muto, T.Seino, J.Murota: "Si Atomic Layer-by-Layer Epitaxial Growth Process Using Alternate Exposure of Si(100) to SiH_4 and to Ar Plasma"Appl.Surf.Sci.. 212-213. 197-200 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Jeong, M.Sakuraba, J.Murota: "Epitaxial Growth of N Delta Doped Si Films on Si(100) by Alternately Supplied NH_3 and SiH_4"Appl.Surf.Sci.. 224. 197-201 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] D.Muto, M.Sakuraba, T.Seino, J.Murota: "Ar Plasma Irradiation Effects in Atomically Controlled Si Epitaxial Growth"Appl.Surf.Sci.. 224. 210-214 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Maki Suemitsu, Hideaki Togashi, Toshimi Abe: "Autocatalytic reaction model : A phenomenology for nucleation-coalescence-growth of thin films"Thin Solid Films. 428. 83-86 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hideki Nakazawa, Maki Suemitsu: "Formation of quasi-single-domain 3C-SiC on nominally on-axis Si(001) substrate using organosilane buffer layer"J.Appl.Phys.. 93. 5282-5286 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 中澤日出樹, 末光眞希, 真下正夫: "有機シランガスを用いたSi基板上シングルドメインSiC薄膜の形成メカニズム"表面科学. 24. 429-433 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Senthil, H.Nakazawa, M.Suemitsu: "Adsorption and desorption kinetics of organosilanes at Si(001) surfaces"Jpn.J.Appl.Phys.. 42. 6804-6808 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Kawaguchi: "Optical properties of strain-balanced SiGe planar microcavities with Ge dots on Si substrates"Applied Physics Letters. 81. 817 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Irisawa: "Ultrahigh room-temperature hole Hall and effective mobility in Si0.3Ge0.7/Ge/Si0.3Ge0.7 heterostructures"Applied Physics Letters. 81. 847 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Myronov, M: "Extremely high room-temperature two-dimensional hole gas mobility in Ge/Si0.33Ge0.67/Si(001)p-type modulation-doped heterostructures"Applied Physics Letters. 80. 3117 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Kawaguchi: "Optical properties of strain-balanced Si0.73Ge0.27/ planar microcavities on Si substrates"Japanese Journal of Applied Physics, Part 1 (Regular Papers, Short Notes & Review Papers). 41. 2664 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Koh: "Hole transport properties of B-doped relaxed Si0.7Ge 0.3 epitaxial films grown by MBE"Journal of Crystal Growth. (掲載予定).

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Sawano: "Relaxation enhancement of SiGe thin layers by ion implantation into Si substrates"Journal of Crystal Growth. (掲載予定).

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Kawaguchi, S.Koh, Y.Shiraki, J.Zhang: "Fabrication of strain-balanced SiO.73GeO.27/Si distributed Bragg reflectors on Si substrates"Applied Physics Letters. 79. 476-478 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Kawaguchi.Y.Shiraki.N.Usami, J.Zhang, N.J.Woods, C.Breton, G.Parry: "Fabrication of strain-balanced Si/Sil-xGex multiple quantum wells on Sil-yGey virtual substrates and their optical properties"Applied Physics Letters. 79. 344-346 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Sawano, K.Kawaguchi, Y.Hirose, S.Koh, K.Nakagawa, T.Haaoril, Y.Shiraki: "Formation of Ultra Smooth SiGe Strain-Relaxed Buffer Layers by Chemical Mechanical Polishing"Applied Physics Letters. (発表予定).

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Irisawa, S.Tokumitsu, S.Koh, K.Nakagawa, Y.Shiraki: "Ultra High Room Temperature Hole Hall and Effective Mobility in SiGe/Ge/SiGe Heterostructures"Applied Physics Letters. (発表予定).

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Koh, K.Murata, T.Irisawa, K.Nakgawa, Y.Shiraki: "Hole Transport Properties in Relaxed Si0.7Ge0.3 Epitaxial Layers"Applied Physics Letters. (発表予定).

    • Related Report
      2001 Annual Research Report
  • [Publications] Usami N, Azuma Y, Ujihara T, Sazaki G, Miyashita S, Murakami Y, Nakajima K: "Growth of SixGel-x (x=0.15) bulk crystal with uniform composition utilizing in situ monitoring of the crystal-solution interface"JAPANESE JOURNAL OF APPLIED PHYSICS. 40(6A). 4141-4144 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Irisawa: "hannel Width Dependence of Mobility in Ge channel Modulation-Doped Structures"Japanese Journal of Applied Physics. (2001年4月に発表予定).

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Irisawa: "Thermal stability of Ge channel modilation doped structure"Journal of Crystal Growth. (発表予定).

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Miura: "formation of Ge islands on Si in the presence of strong strain fields from buried Ge islands"Applied Physics Letters. (発表予定).

    • Related Report
      2000 Annual Research Report
  • [Publications] T. Ueno: "Low temperature buffer growth for modulation doped GeSi/Ge/GeSi hoterostructures with high hole mobility"Thin Solid Films. (発表予定).

    • Related Report
      1999 Annual Research Report
  • [Publications] T. Irisawa: "Carrier activation process in As+ implanted relaxed Si1-xGex alloys"Thin Solid Films. (発表予定).

    • Related Report
      1999 Annual Research Report
  • [Publications] N. Usami: "Optical investigation of modified Stranski-Krastanov growth mode in stacking of self-assembled Ge islands"Thin Solid Films. (発表予定).

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Enta: "Si 2p spectra of initial thermal oxides on Si(100) Oxidized by H2O"Jpn. J. Appl. Phys.. 38. 253-266 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Tsukidate: "Saturated Adsorption on PH3 on Si(100):P and its application to digital control of phosphorous coverage on Si(100) substrate"Appl. Surf. Sci.. 151. 148-152 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Shimamune: "Atomic-Layer Adsorption of P on Si(100) and Ge(100) by PH3 Using an Ultraclean Low-Pressure Chemical Vapor Deposition"Appl. Surf. Sci.. (掲載予定).

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2018-03-28  

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