摘要:
A Bi-CMOS circuit includes a first bipolar, a second bipolar transistor and a CMOS control unit for performing switching controls of the first and second bipolar transistors on the basis of an input signal applied to an input terminal and for controlling an output signal output via the output terminal on the basis of the input signal. A turn-OFF unit temporality couples the base of the first bipolar transistor to a low-potential side power supply line on the basis of a current flowing in said control means when the first bipolar transistor is turned OFF, so that the first bipolar transistor can be rapidly turned OFF.
摘要:
In a semiconductor device including a multilayer pad, the multilayer pad comprises a first pad layer provided over a semiconductor substrate to have a first copper wiring region and a first intralayer insulating region provided within the first copper wiring region, and a second pad layer provided over the first pad layer via an interlayer insulating film to have a second copper wiring region and a second intralayer insulating region provided within the second copper wiring region. In the semiconductor device, the first copper wiring region, the first intralayer insulating region, the second copper wiring region, and the second intralayer insulating region are provided in the first and second pad layers such that the multilayer pad has a layout in which all the regions are covered with the copper wiring when the multilayer pad is perspectively viewed from a perpendicularly upper direction for the semiconductor substrate.
摘要:
A timing analysis method evaluates a performance of a target circuit that is to be designed, and includes calculating a correlation coefficient r between two arbitrary macro cells that are coupled and form the target circuit based on layout information including an arrangement of macro cells forming the target circuit and correlation information indicating a correlation between two macro cells that are coupled for each of arrangements of macro cell pairs, calculating a distribution function σ of a standard deviation of delay times of the two arbitrary macro cells based on the correlation coefficient σ, and carrying out a statistical timing analysis of the target circuit based on the correlation coefficient r and the distribution function σ of the standard deviation with respect to each of the macro cell pairs forming the target circuit.
摘要:
In a semiconductor device including a multilayer pad, the multilayer pad comprises a first pad layer provided over a semiconductor substrate to have a first copper wiring region and a first intralayer insulating region provided within the first copper wiring region, and a second pad layer provided over the first pad layer via an interlayer insulating film to have a second copper wiring region and a second intralayer insulating region provided within the second copper wiring region. In the semiconductor device, the first copper wiring region, the first intralayer insulating region, the second copper wiring region, and the second intralayer insulating region are provided in the first and second pad layers such that the multilayer pad has a layout in which all the regions are covered with the copper wiring when the multilayer pad is perspectively viewed from a perpendicularly upper direction for the semiconductor substrate.
摘要:
A timing analysis method evaluates a performance of a target circuit that is to be designed, and includes calculating a correlation coefficient r between two arbitrary macro cells that are coupled and form the target circuit based on layout information including an arrangement of macro cells forming the target circuit and correlation information indicating a correlation between two macro cells that are coupled for each of arrangements of macro cell pairs, calculating a distribution function σ of a standard deviation of delay times of the two arbitrary macro cells based on the correlation coefficient σ, and carrying out a statistical timing analysis of the target circuit based on the correlation coefficient r and the distribution function σ of the standard deviation with respect to each of the macro cell pairs forming the target circuit.