Boots – shoes – and leggings
Patent
1995-06-23
1996-03-26
Teska, Kevin J.
Boots, shoes, and leggings
364488, 364489, 364491, 364578, H01L 2166
Patent
active
055026494
ABSTRACT:
An apparatus for determining power supply wirings of a semiconductor device includes a unit for executing a logic simulation based on both data concerning each of logic circuit blocks constituting the semiconductor device and data concerning signals for testing operations of the device, and thereby generating a respective output signal data for the logic circuit blocks, a unit for computing a respective operational frequency of the logic circuit blocks based on the generated output signal data, and a unit for computing a respective wiring width of each power supply line for supplying each of the logic circuit blocks with powers. The respective wiring width of each power supply line is determined based on the computed respective operational frequency of the logic circuit blocks and a plurality of wiring widths of respective power supply lines optimumly selected for each of a plurality of operational frequencies in advance. As a result, it is possible to ensure a reliable operation of each logic circuit block and simultaneously realize a reduction in the chip size.
REFERENCES:
patent: 5051938 (1991-09-01), Hyduke
patent: 5145800 (1992-09-01), Arai et al.
patent: 5218551 (1993-06-01), Agrawal et al.
Fujitsu Limited
Fujitsu VLSI Limited
Teska Kevin J.
Walder, Jr. Stephen J.
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