Based on numerical results obtained from solutions to integral equations, o
ther numerical results and theoretical considerations, a set of three-dimen
sional close-form formulae is presented for approximate calculation of freq
uency-dependent interconnect inductance. Extensive verifications reveal tha
t the accuracy obtained by these close-form formulae is better than 5% for
a wide range of parameters. (C) 2001 Elsevier Science B.V. All rights reser
ved.