“…f T /f max = 97/94GHz, represents a new record for NSEG-based HBT technologies. This result should be compared to the 90/72GHz or 48/105GHz achieved at IBM [7,8], or the 75/80GHz announced by TEMIC [9], both using sophisticated self-aligned structures. It also significantly outperforms the 48/100GHz or 55/90GHz results obtained at IHP using a SiGe:C base, but non optimized isolation and collector structures [3,5].…”