Semiconductor integrated circuit with circuit blocks, dummy isla

Details Semiconductor integrated circuit with circuit blocks, dummy isla Semiconductor integrated circuit with circuit blocks, dummy isla

1990-10-23

1992-05-05

Carroll, J.

357 48, 357 54, 357 71, 357 84, H01L 2940, H01L 2704, H01L 2934, H01L 2504

Patent

active

051112744

ABSTRACT:
A semiconductor integrated circuit for a radio comprises: a front end circuit block (1) including at least an oscillation circuit (1b) and a mixing circuit (1c), for converting an RF signal to an IF signal; and an IF amplifying circuit block (2) for amplifying the IF signal and limiting an amplitude thereof, and the front end circuit block (1) is covered with shield electrodes (17, 17a, 17b, 17c) connected to a predetermined potential.

REFERENCES:
patent: 4146905 (1979-03-01), Appels et al.
patent: 4212025 (1984-07-01), Hirasawa et al.
patent: 4303932 (1981-12-01), Johannsen
patent: 4412238 (1983-10-01), Khadder et al.
patent: 4628343 (1986-12-01), Komatsu
patent: 4970565 (1990-11-01), Wu et al.
Millman et al., Microelectronics, 2nd edition, pp. 41-45, and 182-183, published by McGraw-Hill.

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