Paper Info
Title
A 2.5D integrated voltage regulator using coupled-magnetic-core inductors on silicon interposer delivering 10.8A/mm2
Abstract
Energy consumption is a dominant constraint on the performance of modern microprocessors and systems-on-chip. Dynamic voltage and frequency scaling (DVFS) is a promising technique for performing “on-the-fly” energy-performance optimization in the presence of workload variability. Effective implementation of DVFS requires voltage regulators that can provide many independent power supplies and can transition power supply levels on nanosecond timescales, which is not possible with modern board-level voltage regulator modules (VRMs) [1]. Switched-inductor integrated voltage regulators (IVRs) can enable effective implementation of DVFS, eliminating the need for separate VRMs and reducing power distribution network (PDN) impedance requirements by performing dc-dc conversion close to the load while supporting high peak current densities [2-3]. The primary obstacle facing development of IVRs is integration of suitable power inductors. This work presents an early prototype switched-inductor IVR using 2.5D chip stacking for inductor integration.
Year
DOI
Venue
2012
10.1109/ISSCC.2012.6177064
Solid-State Circuits Conference Digest of Technical Papers
Keywords
DocType
ISSN
current density,elemental semiconductors,inductors,magnetic cores,silicon,voltage regulators,Si,chip stacking,coupled-magnetic-core inductors,dc-dc conversion,dynamic voltage,energy consumption,frequency scaling,high peak current densities,independent power supplies,inductor integration,modern board-level voltage regulator modules,modern microprocessors,nanosecond timescales,on-the-fly energy-performance optimization,power distribution network,power inductors,power supply levels,silicon interposer,switched-inductor integrated voltage regulators,systems-on-chip,workload variability
Conference
0193-6530
ISBN
Citations 
PageRank 
978-1-4673-0376-7
0
0.34
References 
Authors
0
15
Name
Order
Citations
PageRank
Noah Sturcken1444.06
Eugene J. O'Sullivan2282.27
Naigang Wang3507.37
Philipp Herget4241.82
Bucknell C. Webb5241.82
Lubomyr T. Romankiw6242.15
Michele Petracca723916.21
Ryan Davies8241.82
Robert E. Fontana9282.31
Gary M. Decad10282.31
Ioannis Kymissis1117816.52
Angel V. Peterchev12606.73
Luca P. Carloni131713120.17
William J. Gallagher14282.27
Kenneth L. Shepard1540453.01