Fast analysis of heatsink emissions with time domain AIM

The ever-rising power levels and operating frequencies of integrated circuits call for a detailed investigation of the electromagnetic radiation from heatsinks. Broadband simulations are required to fully characterize heatsink emissions. In this paper, an FFT-accelerated time domain integral equation solver is utilized to accurately and. efficiently characterize numerous heatsink designs. The effects of various grounding configurations on the radiated emissions are investigated. The proposed modeling approach is validated by comparing the results obtained to those from independent simulation tools. Sample run times demonstrate the efficiency of the solver.