Semiconductor integrated circuit device
AssigneeRenesas Electronics Corporation
InventorToshiaki IWAMATSU
Life of this patent
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Abstract
A finger length al of a transistor P11 is longer than a finger length Al of a transistor P1, and a finger length b1 of a transistor N11 is longer than a finger length B1 of a transistor N1. The finger length b1 of the transistor N11 is shorter than the finger length A1 of the transistor P1, and the relation: a1>A1>b1>B1 is established. In a relation between an I/O section and a logic circuit section, as for MOS transistor of the same conductive type, a finger length of a MOS transistor constituting the logic circuit section is set so as to be longer than a finger length of a MOS transistor constituting the I/O section.
Claims7
A semiconductor integrated circuit device, provided on an SOI substrate and comprising:
- an input/output circuit section;
- and
- a core circuit section, which is provided more internally than said input/output circuit section and operates at a lower power supply voltage than said input/output circuit section,
- wherein
- said input/output circuit section has a first MOS transistor of a first conductivity type,
- said core circuit section has a second MOS transistor of said first conductivity type,
- a first finger length of a first gate electrode of said first MOS transistor, which is defined by a gate electrode extending direction length of a portion on an active region, is set shorter than a second finger length of a second gate electrode of said second MOS transistor, which is defined by a gate electrode extending direction length of a portion on an active region, and
- said first and second MOS transistors include transistors having body regions under said first and second gate electrodes electrically connected to body contact regions provided on the outside of both ends of said first and second gate electrodes in the gate width direction within the surface of said SOI substrate, wherein
- said body contact regions being positioned apart from respective active regions.
Dependencies are inferred from the claim text.