LINK ANALYSIS COMPLIANCE AND CALIBRATION VERIFICATION FOR AUTOMATED PRINTED WIRING BOARD TEST SYSTEMS
First Claim
1. A method for testing a transmission line on a printed wiring board and assessing printed wiring board manufacturing variability, the method comprising:
- measuring a response of the transmission line to an applied signal;
simulating a network including a plurality of components connected by the transmission line, wherein the simulated network is based on the measured response and models representative of each of the components in the network;
analyzing a system output response of the simulated network to a simulated input signal; and
characterizing the printed wiring board based on a comparison of the system output response to a printed wiring board performance metric threshold.
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Accused Products
Abstract
A transmission line on a printed wiring board is tested and printed wiring board manufacturing variability is assessed. A response of the transmission line to a signal test pattern is measured. A network including a plurality of components connected by the transmission line is then simulated. The simulated network is based on the measured scattering parameters and virtual models representative of each of the components in the network. A system-level output response of the simulated network to a simulated input signal is analyzed, and the printed wiring board is characterized based on a comparison of the system-level output response to a printed wiring board performance metric threshold.
8 Citations
18 Claims
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1. A method for testing a transmission line on a printed wiring board and assessing printed wiring board manufacturing variability, the method comprising:
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measuring a response of the transmission line to an applied signal; simulating a network including a plurality of components connected by the transmission line, wherein the simulated network is based on the measured response and models representative of each of the components in the network; analyzing a system output response of the simulated network to a simulated input signal; and characterizing the printed wiring board based on a comparison of the system output response to a printed wiring board performance metric threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification