Sökning: "heterojunction bipolar transistor HBT"

Visar resultat 11 - 12 av 12 avhandlingar innehållade orden heterojunction bipolar transistor HBT.

1. 11. The transistor, with emphasis on its use for radio frequency telecommunication

   Författare :Ted Johansson; Dag Sigurd; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : This thesis is about transistors, integrated circuits and techniques to fabricate electronic devices in semiconductor materials. The most important application area for the transistors studied in the thesis is radio frequency telecommunication. LÄS MER

3. 12. Developments for Improved Performance Vertical-Cavity Surface Emitting Lasers

   Författare :Xingang Yu; Mattias Hammar; Jens A. Tellefsen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The vertical-cavity surface-emitting laser (VCSEL) is a type of laser diode that emits light from the surface of the chip from which it is manufactured rather than from a cleaved edge as so far has been common for most telecommunication lasers. VCSEL’s low cost, high power efficiency and low power consumption properties make it a very attractive signal source for many applications such as fiber optical communication, optical interconnects, 3D sensing, absorption spectroscopy, laser printing, etc. LÄS MER