Multiple-input logic circuit design using BiCMOS-based negative differential resistance circuits

Autor: Cher-Shiung Tsai, Shih-Hao Liu, Kwang-Jow Gan
Rok vydání: 2011
Předmět:
Zdroj: Analog Integrated Circuits and Signal Processing. 73:409-414
ISSN: 1573-1979
0925-1030
DOI: 10.1007/s10470-011-9709-3
Popis: We first propose an inverter circuit design using the negative differential resistance (NDR) circuit composed of the standard Si-based n-channel metal-oxide-semiconductor field-effect-transistor (NMOS) and SiGe-based heterojunction bipolar transistor (HBT). By suitably designing the MOS width/length parameters, we can obtain the ?-type NDR current---voltage (I---V) characteristic. Expanding the inverter circuit operation, the two-input and four-input NOR logic gates are demonstrated. Especially, the design and fabrication of the logic circuit is based on the standard SiGe BiCMOS process. Compared to the traditional NDR device like resonant tunneling diode (RTD), our MOS---HBT---NDR-based applications are much easier to be combined with some Si-based or SiGe-based devices on the same chip.
Databáze: OpenAIRE