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US 12,119,349 B2Granted
Semiconductor integrated circuit device
AssigneeSocionext Inc.
InventorsHideyuki Komuro, Tomoya Tsuruta, Yasuhiro Nakaoka
Life of this patent
Estimating the term…
Abstract
A cell row includes an inverter cell having a logic function and a termination cell having no logic function. The termination cell is arranged at one of two ends of the cell row. A gate line and dummy gate lines are arranged in the same layer in a Z direction. Local interconnects are arranged in the same layer in the Z direction. Local interconnects are arranged in the same layer in the Z direction.
Claims5
A semiconductor integrated circuit device, comprising:
- a plurality of cell rows each including a plurality of standard cells aligned in a first direction, wherein
- a first cell row which is one of the plurality of cell rows includes a first standard cell having a logic function and a second standard cell having no logic function, the second standard cell being arranged at one or each end of the first cell row, wherein
- the first standard cell includes
- a first power supply line that extends in the first direction and is configured to supply a first power supply voltage,
- a second power supply line that extends in the first direction and is configured to supply a second power supply voltage different from the first power supply voltage,
- a first transistor that is a three-dimensional transistor of a first conductive type,
- a second transistor that is a three-dimensional transistor of a second conductive type, which is formed at a position higher than the first transistor relative to a depth direction,
- a gate line extending in a second direction perpendicular to the first direction and in the depth direction, which serves as a gate of each of the first transistor and the second transistor,
- a first local interconnect and a second local interconnect extending in the second direction and connected to a source and a drain of the first transistor, respectively, and
- a third local interconnect and a fourth local interconnect extending in the second direction and connected to a source and a drain of the second transistor, respectively;
- wherein
- the second standard cell includes
- a third power supply line that extends in the first direction and is configured to supply the first power supply voltage,
- a fourth power supply line that extends in the first direction and is configured to supply the second power supply voltage,
- a first dummy transistor that is a three-dimensional transistor of the first conductive type, which is arranged in the depth direction in a same layer as the first transistor,
- a second dummy transistor that is a three-dimensional transistor of the second conductive type, which is arranged in the depth direction in a same layer as the second transistor,
- a dummy gate line extending in the second direction and the depth direction and arranged in the depth direction in a same layer as the gate line, the dummy gate line configured to serve as a gate of each of the first dummy transistor and the second dummy transistor,
- a fifth local interconnect extending in the second direction, and arranged in the depth direction in a same layer as the first local interconnect and the second local interconnect, the fifth local interconnect connected to one of a source or a drain of the first dummy transistor, and
- a sixth local interconnect extending in the second direction, and arranged in the depth direction in a same layer as the third local interconnect and the fourth local interconnect, the fifth local interconnect connected to one of a source or a drain of the second dummy transistor;
- and wherein
- the sixth local interconnect overlaps the fifth local interconnect in plan view.
18 more elements
Dependencies are inferred from the claim text.