Columbia subject headings:
Bipolar transistors.
Digital integrated circuits.
Gallium arsenide.
Metal oxide semiconductors.
Harvard subject headings:
Bipolar transistors.
Digital integrated circuits.
Gallium arsenide.
Metal oxide semiconductors.
Very high speed integrated circuits.
Princeton subject headings:
Bipolar transistors.
Digital integrated circuits.
Gallium arsenide.
Metal oxide seminconductors.