Analysis and modeling of the self-heating effect in SiGe HBTs H. Mnif, Th. Zimmer, J. L. Battaglia and S. Fregonese Eur. Phys. J. Appl. Phys., 25 1 (2004) 11-23 Published online: 13 October 2003 DOI: 10.1051/epjap:2003076