Title :
Synthesis of time-domain models for interconnects having 3-D structure based on FDTD method
Author :
Watanabe, Takayuki ; Asai, Hideki
Author_Institution :
Dept. of Syst. Eng., Shizuoka Univ., Hamamatsu, Japan
fDate :
4/1/2000 12:00:00 AM
Abstract :
This work describes an efficient method to simulate transient responses of multilayer and multiconductor interconnects having three-dimensional structure. First, the impulse responses between any pair of terminals of lines are obtained by the finite-difference time-domain (FDTD) method, Next, the frequency responses are obtained by the Fourier transform of these transient waveforms. The time-domain models are synthesized from the frequency responses by using the least-square approximation and the complex frequency-hopping technique. Finally, with this model, the transient responses are rapidly simulated by the conventional circuit simulators. In conclusion, the validity of this method is verified by comparison with the time-consuming FDTD simulation
Keywords :
circuit simulation; distributed parameter networks; finite difference time-domain analysis; frequency response; integrated circuit interconnections; least squares approximations; multiconductor transmission lines; transient analysis; transient response; 3D structure; FDTD method; Fourier transform; VLSI circuit design; Y-parameters; circuit simulators; complex frequency-hopping technique; finite-difference time-domain method; frequency responses; impulse responses; least-square approximation; multiconductor interconnects; multilayer interconnects; three-dimensional structure; time-domain model synthesis; transient responses; transient waveforms; Circuit simulation; Circuit synthesis; Distributed parameter circuits; Finite difference methods; Frequency synthesizers; Integrated circuit interconnections; Modeling; Power system transients; SPICE; Time domain analysis;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
