摘要:
Test data stored in a data register 13a are applied to a data generator 11a and compared with a 1 bit signal stored in a scan latch 1c to determine the coincidence or non-coincidence therebetween. Outputs from the data generator 11a are applied to RAM 10 to be written in a designated region in a memory cell array 6. Data read from the said region of the memory cell array 6 are compared with expected value data in a comparator 12. Thus, the collation of data is carried out.
摘要:
Cell power supply lines are arranged for memory cell columns, and adjust impedances or voltage levels of the cell power supply lines according to the voltage levels of bit lines in the corresponding columns, respectively. In the data write operation, the cell power supply line is forced into a floating state according to the bit line potential on a selected column and has the voltage level changed, and a latching capability of a selected memory cell is reduced to write data fast. Even with a low power supply voltage, a static semiconductor memory device that can stably perform write and read of data is implemented.
摘要:
A semiconductor device, wherein the lowering, in comparison with a background art, of the resistance of a source line is achieved and a manufacturing method for the same are obtained.A protruding portion (2m) that protrudes in the Y direction towards each drain region (3m) from a trunk portion (1) is formed in a source line (SLa) in each of five memory cells corresponding to “1” of the ROM code from among eight memory cells belonging to the m-th row. In the same manner, a protruding portion (2n) that protrudes in the Y direction towards each drain region (3n) from the trunk portion (1) is formed in the source line (SLa) in each of four memory cells corresponding to “1” of the ROM code from among eight memory cells belonging to the n-th row.
摘要:
A semiconductor integrated circuit device electrically simulating a vital neural network includes neuron units. Each neuron unit includes a plurality of laterally connected synapse units, an accumulator for accumulatively adding the outputs of the final synapse unit in the lateral connection, and a nonlinear processor for carrying out a predetermined nonlinear operational processing on the output of the accumulator. The number of the neuron units and the number of synapse units per neuron unit satisfy a relation of an integer multiple. The number of regularly operating neuron units can be made equal to that of the synapse units per neuron unit, whereby it is possible to prevent the neuron units from performing meaningless operations and an efficient neural network can be obtained.
摘要:
A design verification device includes a diagram data memory for storing designed diagram data, a design reference value memory for storing a design reference value, a determination circuit for making determination with different weight between intersecting directions of a diagram to either the distance or the design reference value in calculating the distance between diagram data provided from the diagram data memory means for making determination whether the calculated distance follows the design reference value; and an error signal output circuit for providing an error signal when determination is made that the design reference value is not followed by the determination circuit.
摘要:
A dynamic random access memory device includes a pair of write-in data transferring buses for transferring data to be written, a pair of read-out data transferring buses for transferring data to be read provided additionally and separately from the write-in data transferring bus pair and a plurality of current mirror type sense amplifiers formed of CMOS transistors and each amplifier being provided between a bit line pair and the read-out data transferring bus pair and having input nodes connected to the corresponding bit line pair and the read-out data transferring bus pair forming output nodes thereof. The current mirror type sense amplifiers of CMOS transistors are activated in response to an output of a column decoder at earlier time than the time when conventional flip-flop type sense amplifiers are activated.
摘要:
A semiconductor memory device in accordance with the present invention operates in response to an address transition detection (ATD) signal for detecting a change in an x address as well as to a write enable signal WE to make the signal level on a selected word line vary according to the read mode and the write mode, whereby dissipation of electric power can be reduced.
摘要:
A machining method of a press die having a pierce cutter and a secondary relief-clearance area recessed inward relative to a profile of the pierce cutter. A plunge cutting tool has an edge portion protruding from an outer circumference of a tool body and can carve while rotating and moving in an axial direction of the tool body. While rotating the plunge cutting tool with an axis of the tool body being approximately parallel to a surface of the pierce cutter, the plunge cutting tool is relatively moved along the profile of the pierce cutter. The plunge cutting tool is also relatively moved in the axial direction of the tool body along the shape of the pierce cutter and the secondary relief-clearance area in a piercing direction each time the plunge cutting tool is relatively moved by a predetermined pitch.
摘要:
A phenolic novolak having the contents of a monomeric phenol and a dimeric phenol and a degree of dispersion controlled can be obtained in high yield by a process for production of a phenolic novolak having a step of conducting a heterogeneous reaction of a phenol and an aldehyde in the presence of a phosphoric acid and an unreactive oxygen-containing organic solvent as a reaction cosolvent.
摘要:
A machining method of a press die having a pierce cutter and a secondary relief-clearance area recessed inward relative to a profile of the pierce cutter is provided. A plunge cutting tool having a tool body and at least one edge portion provided on an outer circumference of an end of the tool body is used, the edge portion being protruding from the outer circumference of the tool body and being capable of carving while rotating around an axis of the tool body and moving in an axial direction of the tool body. While rotating the plunge cutting tool with an axis of the tool body being approximately parallel to a surface of the pierce cutter, the plunge cutting tool is relatively moved along the profile of the pierce cutter. The plunge cutting tool is also relatively moved in the axial direction of the tool body along the shape of the pierce cutter and the secondary relief-clearance area in a piercing direction each time the plunge cutting tool is relatively moved by a predetermined pitch.