A moment matching based methodology for crosstalk analysis

A new fast and accurate methodology for the crosstalk analysis of large VLSI IC interconnects is presented. The proposed approach finds a reduced order approximation of the original interconnect network using an extended moment matching technique. Subsequently, an analytical model of the crosstalk voltage in the time domain is obtained, and a compact model for the crosstalk peak amplitude is derived. This model is implemented at behavioral level by a hardware description language and can be used to accurately evaluate the crosstalk effects in signal integrity analysis of large digital circuits. Moreover, it can be used in performance-driven routers in order to account for crosstalk impact. The effectiveness of the proposed method is demonstrated by application examples.