Sanyo Electric Co., Ltd.

Kazuo Tomizuka

Sakae Sugayama

Takao Saeki

Fumio Sandoh

Toshiaki Imai

A semiconductor integrated circuit includes interconnection lines (7) between a plurality of circuit blocks (25-29) having different functions, and shield electrodes (70, 2a, 2b, 2c 3a, 3b, 3c, 5c1, 5c2, 6a1, 6a2) for protecting the interconnection lines (7) from undesirable radiation.

Semiconductor integrated circuit with shield electrodes for protecting

A semiconductor integrated circuit is formed on a semiconductor chip (1) and it includes: a plurality of mat regions (A to T) each including a plurality of circuit elements (10 to 13); partition regions (4) for spacing the mat regions (A to T) from each other; and a pair of power supply line (2) and ground line (3) disposed on each of the partition regions (4). An electronic circuit formed on the semiconductor chip (1) includes circuit blocks having different functions but it is designed for a unit of each mat (A to T) not for a unit of each circuit block.

Semiconductor integrated circuit having a pattern layout applicable to

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.

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Gunma, Japan

Kazuo Tomizuka