Title : 
Noise characterisation of Si/SiGe heterojunction bipolar transistors at microwave frequencies
         
        
            Author : 
Schumacher, H. ; Erben, U. ; Gruhle, A.
         
        
            Author_Institution : 
Ulm Univ., Germany
         
        
        
        
        
            fDate : 
6/4/1992 12:00:00 AM
         
        
        
        
            Abstract : 
The microwave noise performance of Si/SiGe double-heterojunction bipolar transistors has been evaluated on-wafer, for frequencies ranging from 2 to 26 GHz. Noise figures of 0.6 dB at 2 GHz and 1.2 dB at 10 GHz were found to be among the lowest reported for bipolar transistors in general.
         
        
            Keywords : 
Ge-Si alloys; electron device noise; elemental semiconductors; heterojunction bipolar transistors; semiconductor materials; silicon; solid-state microwave devices; 0.6 dB; 1.2 dB; 2 to 26 GHz; Si-SiGe; double-heterojunction; elemental semiconductors; heterojunction bipolar transistors; microwave frequencies; microwave noise performance; semiconductor materials;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19920736