Abstract :
[en] In this work we optimized the Ge-spiked monoemitter for the SiGe:C heterojunction bipolar transistor by using low-temperature trisilane based chemical vapor deposition to meet the requirements of high growth rate and high electrically-active doping levels of arsenic. The resultant devices show improvement of open-base breakdown voltage and no degradation of cutoff frequency with incorporation of a Ge spike in the monoemitter.
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