摘要:
A semiconductor device comprises a first transistor and a potential generator circuit. The first transistor has a first conduction type first semiconductor region and a second conduction type second semiconductor region formed in the first semiconductor region. The first and second semiconductor regions are supplied with first and second prescribed potentials, respectively. The potential generator circuit generates the first prescribed potential. The potential generator circuit has a first power supply terminal supplied with a first power supply potential, a second power supply terminal supplied with a second power supply potential set to a higher potential than the first power supply potential, and an output terminal outputting the first prescribed potential. The potential generator circuit outputs the second power supply potential when the second power supply potential is higher than a predetermined potential, and the first power supply potential when the second power supply potential is lower than the predetermined potential.
摘要:
A semiconductor integrated circuit device includes a memory cell array including a plurality of planes each including a plurality of memory cells, a power supply voltage generating circuit including a voltage generating circuit configured to generate a power supply voltage common to the plurality of planes, a select number detection circuit configured to detect a number of selected planes of the plurality of planes, and a resistance variable circuit configured to vary a wiring resistance between the plurality of planes and the voltage generating circuit in accordance with the number of selected planes, which is reported from the select number detection circuit, and a control circuit configured to control the power supply voltage generating circuit.
摘要:
Systems and methods for arranging parallel wires to reduce the capacitance variations. In one embodiment, multiple first components arranged as a linear array are coupled to a second component at the end of this linear array by corresponding signal wires. Each signal wire has a perpendicular portion extending perpendicular to the direction of the linear array, and a parallel portion which runs parallel to the direction of the linear array. The parallel portions are staggered so that longer ones of the parallel portions are adjacent to the shorter ones of the parallel portions, instead of simply being arranged from longest to shortest. In one embodiment, the longer half of the parallel portions decrease in length across the series of parallel portions, while the shorter half of the parallel portions increase in length. In another embodiment, successively longer/shorter parallel portions alternate sides of the series.
摘要:
In a semiconductor memory device including a bit line precharge/equalizing circuit, the control system of the bit line precharge/equalizing circuit is changed in the normal operation mode and in the test mode. In the test mode, the bit line precharge/equalizing circuit is temporarily turned ON when an internal activation signal becomes non-active and then the bit line precharge/equalizing circuit is turned OFF after the potentials of paired bit lines are completely equalized.
摘要:
A control apparatus for controlling movement of a table supporting an object under inspection in a medical diagnosis system includes a driving power unit for moving the table, a position detector for outputting a signal indicating a position of the table, a positioning servo-control unit for controlling the driving power unit so that the detected position signal coincides with a given desired value, a manipulating force detector for outputting a force signal corresponding to a manipulating force applied by an operator, a force-to-position conversion unit for converting the force signal into a position change quantity for the table, a force control unit for controlling the driving power unit in accordance with the position change quantity so long as the manipulating force is being detected, and a change-over unit for selecting either the positioning servo-control unit or the force control unit in response to operation of the operator.
摘要:
A semiconductor device including a circuit substrate including n number of terminals; a semiconductor chip provided on the circuit substrate and including n number of terminals; and a relay chip including a triangular substrate having a first side, a second side and a third side which form triangle, n number of first terminals located along the first side, n number of second terminals located along the second side, and a plurality of wires connecting the first terminals and the second terminals respectively; a first wire connecting each of the n number of terminals of the circuit substrate to a corresponding first terminal among the n number of first terminals; and a second wire connecting each of the n number of terminals of the semiconductor chip to a corresponding second terminal among the n number of second terminals.
摘要:
A semiconductor integrated circuit device includes a first component, a second component, a plurality of first, second and third contacts, and a plurality of signal lines having a plurality of first wires, and connecting the first and second component, each of the first wires having a first, second, third and fourth part, each of the parts having a resistivity, the second part having a first resistivity, a different value of the first resistance being set for each of the plurality of first wires, the first, third and fourth parts having a second or third resistivity which is lower than the first resistivity, the first and second part being electrically connected in series by the first contact, the second and third part being electrically connected in series by the second contact, and the third and fourth part being electrically connected in series by the third contact.
摘要:
A semiconductor device according to the present invention includes a substrate including a plurality of first pads thereon; at least one semiconductor chip including a plurality of second pads; and at least one wiring chip including a plurality of third pads. A part of the plurality of second pads of the semiconductor chip is electrically connected to a part of the plurality of third pads of the wiring chip, and another part of the plurality of third pads of the wiring chip is electrically connected to a part of the plurality of first pads of the substrate. The plurality of third pads of the wiring chip are located along two adjacent sides of a wiring chip substrate of the wiring chip, and are connected to each other by a plurality of metal wires, sequentially from the third pads closest from a contact point of the two sides; The plurality of metal wires each include a first part drawn from each of the plurality of third pads located along a first side of the two sides inward the wiring chip so as to be parallel to, or so as to form an acute angle with, a second side of the two sides, a second part drawn from each of the plurality of third pads located along the second side inward the wiring chip so as to be parallel to, or so as to form an acute angle with, the first side, and a third part connecting the first part and the second part to each other in a straight manner. The plurality of metal wires are formed such that a wiring width of each metal wire, a wiring interval between each metal wire and a metal wire adjacent and outer thereto, and a wiring pitch which is a sum of each wiring width and a corresponding wiring interval are set so as to minimize a difference between wiring capacitances of each adjacent metal wires among the plurality of metal wires.
摘要:
A nonvolatile semiconductor memory device having a first memory cell array including a plurality of electrically reprogrammable and erasable nonvolatile memory cells formed in a first area of a semiconductor substrate, a second memory cell array including a plurality of electrically reprogrammable and erasable nonvolatile memory cells formed in second area different from said first area of said semiconductor substrate, said first and second memory cell arrays being arranged in a first direction, a first page buffer block for storing data from said first memory cell array, said first page buffer block being arranged in said first memory cell array along a first direction, a second page buffer block for storing data from said second memory cell array, said second page buffer block being arranged in said second memory cell array along said first direction, a pad section for inputting data to and outputting data from said first memory cell array and said second memory cell array, said pad section having a plurality of pads arranged in an end of a semiconductor chip along a second direction perpendicular to said first direction, a first data line for supplying data from said first memory cell array to said pad section, said first data line being arranged in said first memory cell array along said first direction and a second data line for supplying data from said second memory cell array to said pad section, said second data line being arranged in said second memory cell array along said first direction over said first page buffer block.
摘要:
A nonvolatile semiconductor memory device having a first memory cell array including a plurality of electrical reprogramming and erasable nonvolatile semiconductor memory cells formed in a first area of a semiconductor substrate, a second memory cell array including a plurality of electrical reprogramming and erasable nonvolatile semiconductor memory cells formed in a second area different from said first area of said semiconductor substrate, said first and second memory cell arrays being arranged in a first direction, and a first pad section for inputting data to and outputting data from said first memory cell array and said second memory cell array, said first pad section having a plurality of pads arranged between said first memory cell array and said second memory cell array along a second direction perpendicular to said first direction.