Backside Power Delivery with a Direct 14:1/19:1 High-Ratio Point-of-Load Power Converter for Servers and Datacenters

For computing systems, a fully integrated backside power delivery with a direct 14:1/19:1-ratio power converter is presented featuring (1) backside laterally-diffused power MOS with 1.5x lower Q ON *R ON and 4.9x lower output C OSS compared to the stacked IO device, and (2) in-package optimized tran...

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Bibliographic Details
Published in2021 Symposium on VLSI Technology pp. 1 - 2
Main Authors Lin, H., Hiblot, G., Sun, X., Talmelli, G., Velenis, D., Bex, P., Adelmann, C., Lauwereins, R., Catthoor, F., Van der Plas, G., Beyne, E.
Format Conference Proceeding
LanguageEnglish
Published Japan Society of Applied Physics (JSAP) 13.06.2021
Subjects
Conductivity
Frequency measurement
Loss measurement
Magnetic materials
Transformer cores
Very large scale integration
Voltage measurement
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Summary:For computing systems, a fully integrated backside power delivery with a direct 14:1/19:1-ratio power converter is presented featuring (1) backside laterally-diffused power MOS with 1.5x lower Q ON *R ON and 4.9x lower output C OSS compared to the stacked IO device, and (2) in-package optimized transformer with an innovative magnetic material (Bsat=0.77 T, co-ercivity=0.35 Oe, and resistivity>1e8 Ω*cm). With a 14:1 conversion ratio and 166x boost in power per volume (vs discrete), the total power delivery efficiency is η=72% at 1 W/mm 2 .
ISSN:2158-9682