Planar spiral inductor modeling for RFIC design

The rising demand for low cost RF integrated circuits (RF-IC's) has resulted in tremendous interest in on-chip inductors. As a result of developing processing technology and the considerable studies on modeling and design, reasonable quality on-chip inductors have become available. Planar solenoidal inductors, bondwires and planar spiral inductors are three types of practical on-chip inductors of today's IC design technology. In this study, lumped element planar spiral inductor models have been compared with each other, with results of SPIRAL [1], and with experimental inductor measurement results.