Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1990-06-01
1991-04-09
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330307, 357 2314, H03F 345
Patent
active
050068164
ABSTRACT:
A semiconductor integrated circuit includes a differential transistor circuit having first and second FETs which each include a drain, a source and a gate and whose sources are connected to each other. The differential transistor circuit of the semiconductor integrated circuit includes a plurality of first divided drain regions and second divided drain regions of the same number as that of the first divided drain regions, the first and second divided drain regions being alternately arranged at a regular interval and respectively serving as the drains of the first and second FETs, a plurality of divided source regions each arranged between an adjacent two of the first and second divided drain regions and serving as the sources of the first and second FETs, a plurality of first divided gate electrodes arranged between the first divided drain regions and the divided source regions and serving as the gate of the first FET, and a plurality of second divided gate electrodes arranged between the second divided drain regions and the divided source regions and serving as the gate of the second FET.
REFERENCES:
patent: 4084173 (1978-04-01), Fantechi
Kabushiki Kaisha Toshiba
Mullins James B.
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