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Layout efficient and high performance circular spiral inductors for multilayer multichip modules

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2 Author(s)
K. K. Samanta ; Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, UK ; I. D. Robertson

A simplified technique and analytical expression is proposed to generate layout-efficient coplanar circular spiral inductors and to accurately predict their length, and hence performance, in multilayer multichip module technology. Using the new layout generation technique and developed closed-form expression, circular spiral inductors are designed and modelled with remarkably high performance and miniaturization using multilayer photoimageable thick-film technology. Measured results shows inductance values from 0.6 nH to 30 nH for one to 8 turns. The quality factor (Q) for small value inductors is better than 100. The 30nH inductor measures only 1.3mm × 1.3mm × 0.7mm and demonstrates the highest level of miniaturization in ceramic-based multilayer multichip module (MCM) technology.

Published in:

Microwave Integrated Circuits Conference (EuMIC), 2011 European

Date of Conference:

10-11 Oct. 2011