Search for dissertations about: "Mattias Dahlström"

Found 1 swedish dissertation containing the words Mattias Dahlström.

2. 1. Ultra High Speed InP Heterojunction Bipolar Transistors

   Author : Mattias Dahlström; KTH; []
   Keywords : InP HBT carbon high-speed;

   Abstract : This thesis deals with the development of high speed InPmesa HBT’s with power gain cut—off frequencies up toand above 300 GHz, with high current density and low collectordischarging times.Key developments are Pd—based base ohmics yielding basecontact resistances as low as 10 Ωµm2, base—collector grades to enable to use ofInP in the collector, and an increase in the maximum currentdensity through collector design and thermal optimization. READ MORE