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Ultra-high-Q air-core slab inductors for on-chip power conversion

Authors :
William J. Gallagher
Philipp Herget
David Goren
Leland Chang
Naigang Wang
Xin Zhang
Eugene J. O'Sullivan
Source :
2014 IEEE International Electron Devices Meeting.
Publication Year :
2014
Publisher :
IEEE, 2014.

Abstract

Air-core slab inductors with specially designed current return paths are proposed to achieve the ultra-high Q required for on-chip power delivery and management at >90% efficiency. Uniquely optimized for buck converter circuits, this CMOS-compatible structure avoids the challenges of thin-film magnetics. Q∼25–30 at 200–300MHz is experimentally demonstrated.

Details

Database :
OpenAIRE
Journal :
2014 IEEE International Electron Devices Meeting
Accession number :
edsair.doi...........6356919e1dfea75301f7ca1dd0584428
Full Text :
https://doi.org/10.1109/iedm.2014.7047037