High-Speed MSI Current-Mode Logic Circuits Implemented with Heterojunction Bipolar Transistors

1 October 1986

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 159-162
https://doi.org/10.1109/gaas.1986.10400032

Abstract

The first medium-scale integrated (MSI) Current-Mode Logic circuits implemented with heterojunction bipolar transistors are reported. MSI circuits consisting of up to 280 HBTs were designed and fabricated. These include an 8-bit universal shift register, a 3-bit register, and a gated full adder. The design considerations, HBT fabrication and device characteristics are described. Proper operation was observed at clock/input frequencies higher than 3 GHz for most of the circuits.

Keywords

LOGIC GATES
HETEROJUNCTION BIPOLAR TRANSISTORS
SHIFT REGISTERS
CLOCKS
ADDERS
GALLIUM ARSENIDE
FABRICATION

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