摘要:
Wirings connected to a gate electrode of a slave switch circuit cell for substrate bias circuits are respectively electrically connected to a wiring for a power supply potential and a wiring for a reference potential. Thus, the switch operation of the slave switch circuit cell is made invalid. Wirings connected to n wells of respective circuit cells are electrically connected to a wiring for the power supply potential, and wirings connected to p wells of the respective circuit cells are electrically connected to the wiring. Thus, the n wells are fixed to the power supply potential, and the p wells are fixed to the reference potential.
摘要:
Wirings connected to a gate electrode of a slave switch circuit cell for substrate bias circuits are respectively electrically connected to a wiring for a power supply potential and a wiring for a reference potential. Thus, the switch operation of the slave switch circuit cell is made invalid. Wirings connected to n wells of respective circuit cells are electrically connected to a wiring for the power supply potential, and wirings connected to p wells of the respective circuit cells are electrically connected to the wiring. Thus, the n wells are fixed to the power supply potential, and the p wells are fixed to the reference potential.
摘要:
Wirings connected to a gate electrode of a slave switch circuit cell for substrate bias circuits are respectively electrically connected to a wiring for a power supply potential and a wiring for a reference potential. Thus, the switch operation of the slave switch circuit cell is made invalid. Wirings connected to n wells of respective circuit cells are electrically connected to a wiring for the power supply potential, and wirings connected to p wells of the respective circuit cells are electrically connected to the wiring. Thus, the n wells are fixed to the power supply potential, and the p wells are fixed to the reference potential.
摘要:
A pull-up circuit prevents generation of a leak current if a difference of potentials occurs between a power source voltage of a pull-up circuit (a bus-hold circuit) and an input terminal. A control terminal is provided in the bus-hold circuit. Inputs of the input terminal and the control terminal are input to a NOR gate, and an output of the NOR gate is input to a gate terminal of a first MOSFET that controls coupling between an input terminal and the power source voltage of the bus-hold circuit. A second MOSFET (“control” MOSFET) is provided as a switch that operates by an inverted output of the control terminal. By coupling the first MOSFET and the control MOSFET in series, the coupling between the input terminal and the power source voltage is controlled with a higher precision, thereby preventing generation of a leak current.
摘要:
A pull-up circuit prevents generation of a leak current if a difference of potentials occurs between a power source voltage of a pull-up circuit (a bus-hold circuit) and an input terminal. A control terminal is provided in the bus-hold circuit. Inputs of the input terminal and the control terminal are input to a NOR gate, and an output of the NOR gate is input to a gate terminal of a first MOSFET that controls coupling between an input terminal and the power source voltage of the bus-hold circuit. A second MOSFET (“control” MOSFET) is provided as a switch that operates by an inverted output of the control terminal. By coupling the first MOSFET and the control MOSFET in series, the coupling between the input terminal and the power source voltage is controlled with a higher precision, thereby preventing generation of a leak current.
摘要:
A pull-up circuit prevents generation of a leak current if a difference of potentials occurs between a power source voltage of a pull-up circuit (a bus-hold circuit) and an input terminal. A control terminal is provided in the bus-hold circuit. Inputs of the input terminal and the control terminal are input to a NOR gate, and an output of the NOR gate is input to a gate terminal of a first MOSFET that controls coupling between an input terminal and the power source voltage of the bus-hold circuit. A second MOSFET (“control” MOSFET) is provided as a switch that operates by an inverted output of the control terminal. By coupling the first MOSFET and the control MOSFET in series, the coupling between the input terminal and the power source voltage is controlled with a higher precision, thereby preventing generation of a leak current.
摘要:
A semiconductor integrated circuit makes use of nonvolatile memory cells of a fuse circuit connected to a dedicated signal line without using a nonvolatile memory intended for general purpose use, which is connected to a common bus, in order to store control information for defect relief and the like of circuit modules. The reliability of storage of the control information is not limited to the performance of storage of information in the nonvolatile memory intended for general purpose use, and the reliability of storage of the control information can be easily enhanced. Since a second wiring used in the transfer of the control information is of a wiring dedicated for its transfer, it needs not perform switching between connections to circuit portions used for actual operations in the circuit modules and their control. A circuit configuration for delivering the control information can be simplified.
摘要:
A semiconductor integrated circuit makes use of nonvolatile memory cells of a fuse circuit connected to a dedicated signal line without using a nonvolatile memory intended for general purpose use, which is connected to a common bus, in order to store control information for defect relief and the like of circuit modules. The reliability of storage of the control information is not limited to the performance of storage of information in the nonvolatile memory intended for general purpose use, and the reliability of storage of the control information can be easily enhanced. Since a second wiring used in the transfer of the control information is of a wiring dedicated for its transfer, it needs not perform switching between connections to circuit portions used for actual operations in the circuit modules and their control. A circuit configuration for delivering the control information can be simplified.
摘要:
There is disclosed a honeycomb structure in which while sufficiently maintaining a collection efficiency and a bonding strength of a plugging portion, a thermal shock resistance is improved. A plugging portion 32 is formed in the end of each cell 3 of a honeycomb structure 1, and a gap 34 having a size of 20 μm or more is formed between the plugging portion 32 and each partition wall 2. Moreover, the length of the gap 34 in the axial direction is 50% or more and less than 95% of the length of the plugging portion 32 in the axial direction, the length of the gap in a face vertical to the axial direction is 20% or more and 50% or less of the length of the inner peripheral surface of the cell 3, and the gaps are formed in at least ⅓ of the plugging portions 32.
摘要:
There is provided a honeycomb structure usable in a filter for trapping/collecting particulates included in exhaust gas and in which ashes deposited inside can be removed without requiring any special mechanism or apparatus or without detaching the filter from an exhaust system. The honeycomb structure includes: a plurality of through channels 9 separated by porous partition walls 7 and extending in the axial direction of the honeycomb structure; and plugging portions 11 for plugging one end of each of predetermined through channels 9a and an opposite end of each of the rest of through channels 9b in a checkered flag pattern, alternately. In the honeycomb structure, at least one slit 15 per through channel is formed in the vicinity of the plugging portions 11 of the partition walls 7 surrounding the respective through channels 9b.