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AssigneeInternational Business Machines Corporation
InventorsHaihua Su, David Widiger, Ying Liu, Byron Krauter, Chandramouli Kashyap
Estimating the term…
A system and method for estimating propagation noise that is induced by a non-zero noise glitch at the input of the driver circuit. Such propagation noise is a function of both the input noise glitch and the driver output effective capacitive load, which is typically part of the total wiring capacitance due to resistive shielding in deep sub-micron interconnects. The noise-driven effective capacitance solution provided herein also estimates the propagation noise induced by a non-zero noise glitch at the input of the driving gate. Gate propagation noise rules describing a relationship between the output noise properties and the input noise properties and the output loading capacitance are used within the noise-driven effective capacitance process to determine the linear Thevenin model of the driving gate. The linearized Thevenin driver model is then employed to analyze both the propagation noise and the combined coupling and propagation noise typically seen in global signal nets.
A method for minimizing noise problems in a chip design, said chip design comprising at least one driver gate driving a victim net and sinks attached to said victim net, the method comprising the steps of:
A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for minimizing noise problems in a chip design, said chip design comprising at least one driver gate driving a victim net and sinks attached to said victim net, said method steps comprising:
Dependencies are inferred from the claim text.