Circuitry cross-talk analysis with consideration of signal transitions
AssigneeVIA Technologies, Inc.
InventorsYou-Ming Chiu, Wen-Hao Hsueh
Life of this patent
Estimating the term…
Abstract
A method for evaluating cross-talk of a circuit and signal degrading due to mutual electric coupling between wires of a circuit. The method includes: simulating the signal transmitting on wires of the circuit during the normal operation of the circuit, and implementing cross-talk analysis of the circuit to modify the analysis according to the signal variation during the practical operation of the circuit in order to evaluate the cross talk on each wire in the circuit.
Claims17
A method for evaluating cross-talk effects of a circuit between signals transmitted in a first wire and a second wire, the method comprising:
- according to circuit functions, analyzing signals transmitted in the first wire and the second wire during the practical operation of the circuit, wherein the signal transmitted in the first and second wires of the circuit are a first dynamic signal and a second dynamic signal, respectively;
- according to layouts of the first and the second wire, while a first analyzed signal and a second analyzed signal are respectively transmitted on the first wire and the second wire, analyzing mutual influence effects between the first analyzed signal and the second analyzed signal to generate an analytic result;
- and
- according to a difference between the first and the second analyzed signals, modifying the analytic result.
A method for evaluating cross-talk of a circuit to estimate mutual influence effects between signals transmitted in a first wire and a second wire, the method comprising:
- according to circuit functions, analyzing signals transmitted in the first and the second wires, wherein the signal transmitted in the first and second wires of the circuit are a first dynamic signal and a second dynamic signal, respectively;
- and
- according to the first and the second dynamic signals, while the first and the second analyzed signals are transmitted in the first and the second wires, respectively, further analyzing the mutual influence effects between the first and the second analyzed signals according to layouts of the first and the second wires to generate an analytic result.
A method for evaluating cross-talk of a circuit to estimate mutual influence effects between first and second wires, the method comprising:
- according to circuit functions, analyzing a first dynamic signal which is transmitted in the first wire and a second dynamic signal which is transmitted in the second wire during operation of the circuit;
- simulating a situation using a computer in which the first and the second analyzed signals are transmitted in the first and the second wires respectively, to determine the mutual influence effects between the first and the second wires;
- and
- according to the first and the second dynamic signals, determining whether or not to modify circuit layout design by using the mutual influence to reduce cross-talk effects of the circuit.
Dependencies are inferred from the claim text.