Title :
Enhancing the stability of asymptotic waveform evaluation for digital interconnect circuit applications
Author :
Anastasakis, Demosthenes F. ; Gopal, Nanda ; Kim, Seok-Yoon ; Pillage, Lawrence T.
Author_Institution :
Mentor Graphics Corp., Wilsonville, OR, USA
fDate :
6/1/1994 12:00:00 AM
Abstract :
Asymptotic Waveform Evaluation (AWE) has been demonstrated as an efficient approach for interconnect circuit simulation/analysis. However, since it is based upon moment-matching, it is prone to yielding unstable approximations for stable circuits. This paper describes a systematic approach for alleviating the inherent instability associated with AWE and moment-matching methods as they apply to passive, digital, interconnect circuits. The efficiency and accuracy of this approach are demonstrated on several large, RLC interconnect-circuit problems
Keywords :
VLSI; circuit analysis computing; convergence of numerical methods; digital circuits; digital integrated circuits; distributed parameter networks; linear network analysis; passive networks; AWE; RLC interconnect-circuit problems; VLSI interconnect; asymptotic waveform evaluation; circuit analysis; circuit simulation; digital interconnect circuit applications; moment-matching; passive interconnect circuits; stability enhancement; Analytical models; Asymptotic stability; Circuit analysis; Circuit simulation; Circuit stability; Frequency; Integrated circuit interconnections; Piecewise linear approximation; RLC circuits; USA Councils;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
