Modeling & Analysis Planar Transformer for Power ICs Application

This paper addresses integration of transformer, which focused on the analysis and design of the chip especially at high frequencies. The equivalent circuit model is obtained through both measurement and EM simulation with scattering parameters extraction. Two typical types of transformers have been fabricated with 0.25 mum CMOS technology; namely interleaved and stacked transformer. These on-chip transformers are designed and simulated using Virtuoso Layout Editor in CADENCE design software. Physical parameters of the transformer such as winding scheme, metal width and coupling coefficient have been proposed in this paper