Novel Emitter-segmented Power HBT with 2-D non-uniform Segment Spacing for High Thermal Stability

摘要：

　　With the aid of the thermal model,thermal resistance matrix of emitter-segmented power HBT is proposed to represent thermal effects.The effect of 2-dimensional (2-D) inter-segment spacing on thermal stability of device is studied.It is shown that the increase of inter-segment spacing could effectively decrease thermal coupling resistance,lower temperature of center segments,and hence improves the thermal stability.Furthermore,a novel emitter-segmented power HBT with 2-D non-uniform segment spacing is proposed,in which the non-uniformity of segment temperature is improved by 75.26% and the maximum power level difference of emitter segment is improved by 55.84%,when compared with uniform segment spacing HBT.Therefore the technique of 2-D non-uniform segment spacing is a better method for enhancing the thermal stability of power HBTs.

关键词： Power HBTs Thermal resistance matrix Thermal stability

作者: D.Y.Jin R.X.Hu W.R.Zhang D.Lu Q.Fu Y.J.Zhang

作者单位: College of Electronic Information and Control Engineering,Beijing University of Technology,Beijing 100124,China

会议类型: 国际会议

会议名称: 2012 2nd International conference on Machinery Electronics and Control Engineering (2012年第二届国际机械电子与控制工程会议(ICMECE 2012))

会议地点: 济南

会议语种:英文

页码: 737-741

在线出版日期: 2012-12-29（万方平台首次上网日期，不代表论文的发表时间）