摘要:
In a CMOS gate-array type IC device a plurality of cell arrays in which a plurality of fundamental cells (C1, C2, ...) each having a CMOS structure are disposed in a column direction (Y) are disposed along a row direction (X) on a semiconductive substrate (32). An arbitary fundamental cell array is in direct contact with another cell array adjacent thereto along the row direction (X). One macrocell serving as a unit logical circuit component may be formed by suitably wiring two fundamental cells (C1, C2) each belonging to two neighbouring cell arrays.
摘要:
A semiconductor device comprising a semiconductor substrate of the first conductivity type (120), a self substrate bias generator formed in the semiconductor substrate for generating a voltage with the opposite polarity to that of an externally applied voltage and having a capacitive element (112) and a rectifier element (114,118) and a group of circuit elements supplied with a voltage generated by the self substrate bias generator, characterized in that the semiconductor substrate of the first conductivity type is supplied with a first reference potential (V DD ) selected so as to prevent minority carriers from the capacitive element and the rectifier element from entering into the semiconductor substrate; and the circuit element group is formed in a first semiconductor region (122) formed in the semiconductor substrate.
摘要:
In a CMOS gate-array type IC device a plurality of cell arrays in which a plurality of fundamental cells (C1, C2, ...) each having a CMOS structure are disposed in a column direction (Y) are disposed along a row direction (X) on a semiconductive substrate (32). An arbitary fundamental cell array is in direct contact with another cell array adjacent thereto along the row direction (X). One macrocell serving as a unit logical circuit component may be formed by suitably wiring two fundamental cells (C1, C2) each belonging to two neighbouring cell arrays.