Enhanced schottky diode field effect transistor logic circuits

Details Enhanced schottky diode field effect transistor logic circuits Enhanced schottky diode field effect transistor logic circuits

H - Electricity

03

K

328/127

H03K 19/094 (2006.01) H03K 19/017 (2006.01) H03K 19/0956 (2006.01)

Patent

CA 1245304

ABSTRACT A fast, low power integrated circuit logic is provided which is particularly suited for integration with high electron mobility substrates such as gallium arsenide (GaAs) or indium phosphide (InP). A forward biased Schottky diode serves as the nonlinear logic element and is used to switch a field effect transistor (FET). The FET is preferably a depletion mode metal-semiconductor field effect transistor (MESFET). A reverse biased Schottky diode is connected in parallel with the forward biased Schottky diode to improve circuit performance, and in particular, switching speed. Alternatively, if the switching speed is held constant, the present invention dissipates less power than similar logic circuits which do not employ the reverse biased Schottky diode.

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