TY - GEN
T1 - Demonstration of a High-Inductance, High-Density, and Low DC Resistance Compact Embedded Toroidal Inductor for IVR
AU - Alvarez, Claudio
AU - Murali, Prahalad
AU - Swaminathan, Madhavan
AU - Oishi, Yusuke
AU - Takashiro, Junichi
AU - Nagatsuka, Ryo
AU - Watanabe, Naoki
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported in part by ASCENT, one of six centers in JUMP, a Semiconductor Research Corporation (SRC) program sponsored by DARPA and the 3D Systems Packaging Research Center (PRC).
Publisher Copyright:
© 2021 IEEE
PY - 2021
Y1 - 2021
N2 - Next-generation high-performance computing (HPC) platform requires to run at higher speed with higher power consumption levels. Integrated voltage regulators (IVR) with a conversion ratio of 12 V to 1 V can help to reduce the power distribution network (PDN) impedance, increase the voltage conversion efficiency, and increase the regulation bandwidth. In this work, we present a new package embedded inductor array for multi-phase IVRs with a DC resistance as low as 22.8 mΩ. Inductors with three magnetic materials are demonstrated. With one material a small signal inductance as high as 475 nH is obtained, suitable for 12 V to 1 V conversion at 2 MHz. Another material gives an inductance of 192 nH suitable for 12 V to 1 V IVRs at 5 MHz. Each inductor occupies less than 6.25 mm2 and are built with 400 µm thick metal polymer composite magnetic sheets. The metric effective AC resistance per unit inductance or Racx is used to predict the inductor performance.
AB - Next-generation high-performance computing (HPC) platform requires to run at higher speed with higher power consumption levels. Integrated voltage regulators (IVR) with a conversion ratio of 12 V to 1 V can help to reduce the power distribution network (PDN) impedance, increase the voltage conversion efficiency, and increase the regulation bandwidth. In this work, we present a new package embedded inductor array for multi-phase IVRs with a DC resistance as low as 22.8 mΩ. Inductors with three magnetic materials are demonstrated. With one material a small signal inductance as high as 475 nH is obtained, suitable for 12 V to 1 V conversion at 2 MHz. Another material gives an inductance of 192 nH suitable for 12 V to 1 V IVRs at 5 MHz. Each inductor occupies less than 6.25 mm2 and are built with 400 µm thick metal polymer composite magnetic sheets. The metric effective AC resistance per unit inductance or Racx is used to predict the inductor performance.
UR - https://www.scopus.com/pages/publications/85119674208
UR - https://www.scopus.com/pages/publications/85119674208#tab=citedBy
U2 - 10.1109/ECTC32696.2021.00209
DO - 10.1109/ECTC32696.2021.00209
M3 - Conference contribution
AN - SCOPUS:85119674208
T3 - Proceedings - Electronic Components and Technology Conference
SP - 1293
EP - 1299
BT - Proceedings - IEEE 71st Electronic Components and Technology Conference, ECTC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 71st IEEE Electronic Components and Technology Conference, ECTC 2021
Y2 - 1 June 2021 through 4 July 2021
ER -