Semiconductor integrated circuit device made by a standard-cell system and method for manufacture of same
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United States of America Patent
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Aug 14, 1990
Grant Date -
N/A
app pub date -
Jul 8, 1985
filing date -
Jul 13, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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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