Showing papers by "Bobby Brar published in 2012"
25 Oct 2012
TL;DR: In this article, scaling laws and limits of THz indium-phosphide bipolar transistors are presented, and a process flow with refractory dry-etch emitter and base contacts is presented, showing that at the 32 nm node, degenerate injection in the emitter-base junction limits transconductance and impedes scaling.
Abstract: Scaling laws and limits of THz indium Phosphide heterojunction bipolar transistors (HBTs) are presented. The primary limits to scaling through the 32 nm / 3 THz node are the resistivity, penetration depth, and current-carrying capability of the emitter and base contacts. A processes flow with refractory dry-etch emitter and base contacts is presented. Beyond the 32 nm node, degenerate injection in the emitter-base junction limits transconductance and impedes scaling. At the 32 nm node, bandwidths will be sufficient for 1.4 THz transmitters and receivers.
5 citations