博碩士論文 90521041 詳細資訊




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姓名 李孟麟(Meng-Lin Lee)  查詢紙本館藏   畢業系所 電機工程學系
論文名稱 磷化銦/砷化銦鎵雙異質接面雙極性 電晶體製作與特性分析
(Fabrication and Characteristic Analysis of InP/InGaAs Double Heterojunction Bipolar Transistors )
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摘要(中) 本論文主要研究內容在於磷化銦雙異質接面雙極性電晶體的製作與特性分析。利用苯並環丁烯(BCB)的特性,發展出一套以BCB做為鈍化層的製程技術,以簡化製程。以此製程技術製作的InP-based HBT`s於直流的表現方面,可以有效抑制基極表面復合電流的產生,在相同的集極電流下,獲得較高的電流增益,使G值大於1(G = Ap. / Au.p. = ∫ß passivated HBT d(log(IC)) / ∫ß unpassivated HBT d(log(IC)))。
利用簡單、容易成長的結構,陡峭接面(abrupt junction),配合基-射極(B-E)與基-集極(B-C)間隔層(spacer layer)與N+ InP layer 來提升元件的特性:不但能有效降抑制基極擴散(Base out-diffuse),降低導通電壓,提升電流增益;亦能控制B-C接面導通電壓,在有效抑制電流阻擋效應(current blocking effect)的情形下,將 off-set voltage 拉低至0.1V以下,而且崩潰電壓可以維持在5V以上。而將基極與集極的厚度降低,可以獲得108 GHz的截止頻率(2x20μm2)。
摘要(英) InGaAs spacer layer at base-collector junction of InGaAs/InP double heterojunction bipolar transistor (DHBT) is employed widely for lowering current blocking effect. The thickness of this spacer layer has to be optimized to reduce current blocking while maintain a reasonably low VCE offset voltage and high breakdown voltage. Since the offset voltage is partly resultant from the difference between the turn-on voltages of base-emitter and base-collector junction, it is our intention to design a collector structure so that the base- collector junction turn-on voltage can be increased to match that of the base-emitter junction. Parameters, such as layer thickness and doping concentration, are investigated experimentally as well as theoretically.
關鍵字(中) ★ 磷化銦
★ 異質接面雙極性電晶體
★ 苯並環丁烯
關鍵字(英) ★ InP
★ HBT
★ BCB
論文目次 圖目錄 Ⅱ
表目錄 Ⅳ
第一章、導論 1
第二章、苯並環丁烯(BCB)光微影製程 3
2-1 序論 3
2-2 元件製作 5
2-3 元件特性分析 14
2-4 結論 19
第三章、間隔層與N+ InP layer 對元件直流特性的影響 20
3-1 序論 20
3-2 元件製作 21
3-3元件特性分析 23
3-4 結論 39
第四章、結論 40
參考文獻 42
參考文獻 [1] F. Fiedler, K. Mause, G.Pitz*, D. Fritzsche, E. Kuphal, and H. Kräutle, “InP Based HBTs – Technology, Performance and Applications,” in Proc. 4th Int. Conf. on InP and Rel Mater., 1992, pp. 404-409,.
[2] Chinoy, P.B., Tajadod, J., “Processing and Microwave Characterization of Multilevel Interconnects Using Benzocyclobutene Dielectric,” Components, Hybrids, and Manufacturing Technology, IEEE Transactions on Vol. 16 Issue 7, Nov 1993,pp. 714-719.
[3] M. Hafizi, T. Liu, P.A. Macdonald, M. Lui, P. Chu*, D.B. Rensch, W.E. Stanchina, and C.S. Wu*, “High-Performance Microwave Power AlInAs/GaInAs/InP Double Heterojunction Bipolar Transistors with Compositionally Graded Base-Collector Junction,” IEDM Tech Dig., 1993, pp.791-794.
[4] D. Ritter, R.A. Hamm, A. Feygenson, H. Temkin, and M. B. Panish, S. Chandrasekhar, “Bistable Hot Electron Transport in InP/GaInAs Composite Collector Heterojunction Bipolar Transistors,” Appl. Phys. Lett., Vol. 61, (July,1992) , pp.70-72.
[5] K. Tang, G. O. Munns, G. I. Haddad, “High fmax InP Double Heterojunction Bipolar Transistors with Chirped InGaAs/InP Superlattice Base-Collector Junction Grown by CBE,” IEEE Electron Device Lett., vol 18, (November, 1997), pp. 553-555,.
[6] N. Matine, M. W. Dvorak, S. Lam, and C. R. Bolognesi, “Demonstration of GSMBE Grown InP/GaAs0.51Sb0.49/InP DHBTs,” in Proc.12th Int. Conf. on InP and Rel Mater., 2000, pp. 239-242.
[7] Hideki Fukano, Yoshifumi Takanashi, Masatomo Fujimoto, ”Surface Currents in InP/InGaAs Heterojunction Bipolar Transistors Produced by Passivation Film Formation, ” Jpn. J. Appl. Phys. Vol. 32(1993),PP. L1788-L1791.
[8] Yu, J.S.; Kim, S.H.; Kim, T.I.; “PtTiPtAu and PdTiPtAu ohmic contacts to p-InGaAs, ” International Symposium Compound Semiconductors IEEE, Aug. 1997,pp. 175-178.
[9] G. Stareev, H. Künzel, and G. Dortmann, “A controllable mechanism of forming extremently low-resistance nonalloyed ohmic contacts to group III-V compound semiconductors, ” J. Appl. Phys. 75, 8246 (1994).
[10] William Liu, ”Handbook of Ⅲ-Ⅴ of Heterojunction Bipolar Transistors”, John Wiley and sons, p766, 1998.
[11] D. Caffin, L. Bricard, J. Courant, L. S. How Kee Chun, B. Lescaut, A. M. Duchenois, M. Meghelli, J. L. Benchimol, and P. Launay, ”Passivation of InP-based HBT`s for High Bit Rate Circuit Applications, ” Indium Phosphide and Related Materials, May 1997, pp. 637 – 640.
[12] William Liu, ”Handbook of Ⅲ-Ⅴ of Heterojunction Bipolar Transistors”, John Wiley and sons, p.155, 1998.
指導教授 綦振瀛(Jen-Inn Chyi) 審核日期 2003-7-7
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