Data processing: structural design – modeling – simulation – and em – Simulating electronic device or electrical system – Circuit simulation
Reexamination Certificate
2006-04-25
2006-04-25
Paladini, Albert W. (Department: 2125)
Data processing: structural design, modeling, simulation, and em
Simulating electronic device or electrical system
Circuit simulation
C703S002000
Reexamination Certificate
active
07035783
ABSTRACT:
In a simulation considering a skin effect, a signal conductor is vertically and horizontally divided by faces parallel to the surface of the signal conductor, which are set so that intervals are smaller as the faces are nearer to the surface, and larger as the faces are farther from the surface. Also a ground conductor is vertically divided with a similar method, and an integration calculation is made, so that the resistance of the signal conductor, which corresponds to a given frequency, is obtained.
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IBM Technical Disclosure (NN9512237) Method for Modeling the Skin Effect in Inductance Calculations Dec. 1, 1995.
Lavers et al. IEEE Journal (7803-6667-0/01) Constriction Resistance at High Signal Frequencies. 2001.
W. T. Weeks, et al., Resistive and Inductive Skin Effect in Rectangular Conductors, Nov. 1979, pp. 652-660, vol. 23, No. 6, IBM J. Research & Develop.
“Analysis Tools For High-Speed Digital Signal Circuits,” ANSOFT PRODUCTS CATALOG, before Jun. 2000, pp. 27, 28, and 30 (Partial Translation [p. 30, “Skin effect and return current analysis in association with high frequency signals”]).
Kawata Hikoyuki
Nagata Megumi
Orihara Hiroyuki
Tokuda Kazuhiko
Tosaka Masaki
Fujitsu LImited
Paladini Albert W.
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