SiGe HBT technology design approaches for RF-applications

Autor: B.G. Malm, M. Ostling
Rok vydání: 2004
Předmět:
Zdroj: The 11th IEEE International Symposium on Electron Devices for Microwave and Optoelectronic Applications, 2003. EDMO 2003..
DOI: 10.1109/edmo.2003.1259975
Popis: In this paper the current status of SiGe bipolar technologies for high-speed and wireless applications is discussed. The key process features and RF performance of advanced SiGe bipolar processes are summarized. In particular the importance of carbon doping for improved doping profile control and self-aligned structures for reduced device parasitics is discussed. As an example of advanced process features a novel collector structure, using selective epitaxy is presented. Optimization of device RF performance is also discussed, and in particular the RF-distortion. A mixed-mode device and circuit simulation methodology has been used to investigate the influence of collector doping and Ge-profiles on the intermodulation distortion.
Databáze: OpenAIRE