HIGH-FREQUENCY PERFORMANCE OF SI1-XGEX/SI1-YGEY/SI1-XGEXHBTS

被引:2
|
作者
ROSENFELD, D [1 ]
ALTEROVITZ, SA [1 ]
机构
[1] TECHNION ISRAEL INST TECHNOL,FAC ELECT ENGN,HAIFA,ISRAEL
关键词
BIPOLAR DEVICES; TRANSISTORS; SEMICONDUCTOR DEVICES AND MATERIALS;
D O I
10.1049/el:19930178
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The results of a theoretical study of the performance of high speed SiGe HBTs is presented. The study includes a group of SiGe HBTs in which the Ge concentration in the base is 20% higher than that in the emitter and collector (i.e. y = x + 0.2). It is shown that the composition dependences of f(T) and the f(max) are non-monotonic. As the Ge composition in the emitter and collector layers is increased, f(T) and f(max) first decrease, then remain constant and finally increase to attain their highest values.
引用
收藏
页码:260 / 261
页数:2
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