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8th International Conference on VLSI Design
Analysis of temperature dependence of Si-Ge HBT
New Delhi, India
January 04-January 07
ISBN: 0-8186-6905-5
G.H.R. Krishna, Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
A.K. Aditya, Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
N.B. Chakrabarti, Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
S. Banerjee, Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
In this paper the dependence of characteristics of SiGe heterojunction bipolar transistors on Ge mole-fraction and also variation of gain with temperature are presented. The simulation is carried out using a two dimensional device simulator, BISOF, based on finite element method. It is observed that the current gain of graded HBT improves when the temperature falls from 300 K to 200 K which matches well with the available experimental results.
Index Terms:
semiconductor materials; heterojunction bipolar transistors; finite element analysis; semiconductor device models; Ge-Si alloys; simulation; thermal analysis; temperature dependence; FEM; heterojunction bipolar transistors; Ge mole-fraction; two dimensional device simulator; BISOF; finite element method; current gain; graded HBT; 200 to 300 K; SiGe
Citation:
G.H.R. Krishna, A.K. Aditya, N.B. Chakrabarti, S. Banerjee, "Analysis of temperature dependence of Si-Ge HBT," vlsid, pp.268, 8th International Conference on VLSI Design, 1995
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