Approaches to high performance SITL

The paper considers a new circuit configuration with the normally configured bipolar mode static induction transistor (BSIT) introduced to static induction transistor logic (SITL) with Schottky diodes fabricated to ensure decoupling between multiple outputs. This is expected to improve speed performance and is called Schottky SITL. The normally configured BSIT is usually superior to the inversely configured BSIT in current gain, transconductance, and impedance which relate directly to frequency performance and driving capability. The performance of this Schottky SITL with three fan-outs in each stage was evaluated from measurements on a ring oscillator, showing a propagation delay of 2.5 ns with a power dissipation of 100 microwatts.