Semiconductor integrated circuit device made by a standard-cell

Details Semiconductor integrated circuit device made by a standard-cell Semiconductor integrated circuit device made by a standard-cell

1985-07-08

1990-08-14

Lall, Parshotam S.

Boots, shoes, and leggings

364489, 364488, G06F 1560

Patent

active

049492756

ABSTRACT:
A semiconductor integrated circuit device comprises a semiconductor chip with a plurality of standard cells formed thereon. Each of said standard cells consists of at least one type of standard cell which is selected from among a plural types of standard cells which are pre-registered in a standard cell library retained by a computer. The placement and routing pattern of said standard cells on said semiconductor chip are designed automatically by a computer system. In relation to at least one of said standard cells, at least one basic cell for general-purpose logical gate is formed on said semiconductor chip to deal with design modification of the device.

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Kessler et al., "Standard Cell VLSI Design: A Tutorial", IEEE Circuits and Devices Magazine, Jan. 1985, pp. 17-34.
Tokuda et al., "A Hierarchial Standard Cell Approach for Custom VLSI Design", IEEE Transactions on Computer-Aided Design, vol. CAD-3, No. 3, Jul. 1984, pp. 172-177.

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