Criterion of design for small value integrated self-inductors

Facing the increased frequencies used in analog products, integrated-circuit designers find that the X or upper band has its own problems, especially in the case of passive components. The paper focuses on inductor design and layout, opposing classical analog integrated inductors and hyper frequency lines. After studying separately each solution and pointing out their limits on an actual SOS (silicon on sapphire) 0.5 /spl mu/m case, a methodology to solve this issue is revealed and a chosen criterion is supplied.