Name
Title | ||
|---|---|---|
A 2.5D Integrated Voltage Regulator Using Coupled-Magnetic-Core Inductors on Silicon Interposer |
Abstract | ||
|---|---|---|
An integrated voltage regulator (IVR) is presented that uses custom fabricated thin-film magnetic power inductors. The inductors are fabricated on a silicon interposer and integrated with a multi-phase buck converter IC by 2.5D chip stacking. Several inductor design variations have been fabricated and tested. The best performance has been achieved with a set of eight coupled inductors that each occupies 0.245 mm2 and provides 12.5 nH with 270 mΩ DC. With early inductor prototypes, the IVR efficiency for a 1.8 V:1.0 V conversion ratio peaks at 71% with FEOL current density of 10.8 A/mm2 and inductor current density of 1.53 A/mm2. At maximum load current, 69% conversion efficiency and 1.8 V:1.2 V conversion ratio the FEOL current density reaches 22.6 A/mm2 and inductor current density reaches 3.21 A/mm2. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/JSSC.2012.2221237 | Solid-State Circuits, IEEE Journal of |
Keywords | Field | DocType |
elemental semiconductors,magnetic cores,power convertors,power inductors,silicon,voltage regulators,IVR,Si,chip stacking,coupled-magnetic-core inductors,integrated voltage regulator,multi-phase buck converter IC,silicon interposer,thin-film magnetic power inductors,2.5D integration,Buck converter,DC-DC power conversion,Integrated Voltage Regulator (IVR),switched inductor | Current density,Energy conversion efficiency,Computer science,Inductor,Electronic engineering,Magnetic core,Power electronics,Electrical engineering,Buck converter,Voltage regulator,Commutation | Journal |
Volume | Issue | ISSN |
48 | 1 | 0018-9200 |
Citations | PageRank | References |
24 | 1.48 | 6 |
Authors | ||
15 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Noah Sturcken | 1 | 44 | 4.06 |
| Eugene J. O'Sullivan | 2 | 28 | 2.27 |
| Naigang Wang | 3 | 50 | 7.37 |
| Philipp Herget | 4 | 24 | 1.82 |
| Bucknell C. Webb | 5 | 24 | 1.82 |
| Lubomyr T. Romankiw | 6 | 24 | 2.15 |
| Michele Petracca | 7 | 239 | 16.21 |
| Ryan Davies | 8 | 24 | 1.82 |
| Robert E. Fontana | 9 | 28 | 2.31 |
| Gary M. Decad | 10 | 28 | 2.31 |
| Ioannis Kymissis | 11 | 178 | 16.52 |
| Angel V. Peterchev | 12 | 60 | 6.73 |
| Luca P. Carloni | 13 | 1713 | 120.17 |
| William J. Gallagher | 14 | 28 | 2.27 |
| Kenneth L. Shepard | 15 | 404 | 53.01 |