Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion

Yixiao Ding; Xiangming Fang; Rongxiang Wu; Johnny K.O. Sin

doi:10.1109/ISPSD46842.2020.9170128

Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion

Yixiao Ding
, Xiangming Fang
, Rongxiang Wu
, Johnny K.O. Sin

Department of Electronic and Computer Engineering

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

5 Citations (Scopus)

Abstract

In this paper, novel fan-out-package-embedded coupled inductors are proposed and demonstrated for integrated voltage conversion. The coupled inductors have two interleaved thick windings embedded in a silicon-based fan-out package and surrounding an embedded die which is the control IC of a voltage converter. Fan-out-package-embedded coupled inductors with an inductance of 2.5 nH and a coupling factor of 0.85 are designed and fabricated for a high-frequency buck converter application. The fabricated coupled inductors show a dc resistance of 5 mO and an ac resistance of 77 mO at 170 MHz. Using the coupled inductors, the integrated converter achieves a very high efficiency of 90.4% for 0.19 A, 170 MHz, 1. 2-0.9V voltage conversion, which is significantly higher than that of the converters implemented using other inductor approaches.

Original language	English
Title of host publication	Proceedings of the 2020 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	356-359
Number of pages	4
ISBN (Electronic)	9781728148366
DOIs	https://doi.org/10.1109/ISPSD46842.2020.9170128
Publication status	Published - Sept 2020
Event	32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020 - Virtual, Online, Austria Duration: 13 Sept 2020 → 18 Sept 2020

Publication series

Name	Proceedings of the International Symposium on Power Semiconductor Devices and ICs
Volume	2020-September
ISSN (Print)	1063-6854

Conference

Conference	32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020
Country/Territory	Austria
City	Virtual, Online
Period	13/09/20 → 18/09/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Keywords

coupled inductors
integrated inductor
integrated voltage conversion
integrated voltage regulator

Access to Document

10.1109/ISPSD46842.2020.9170128

Cite this

Ding, Y., Fang, X., Wu, R., & Sin, J. K. O. (2020). Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion. In Proceedings of the 2020 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020 (pp. 356-359). Article 9170128 (Proceedings of the International Symposium on Power Semiconductor Devices and ICs; Vol. 2020-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISPSD46842.2020.9170128

Ding, Yixiao ; Fang, Xiangming ; Wu, Rongxiang et al. / Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion. Proceedings of the 2020 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 356-359 (Proceedings of the International Symposium on Power Semiconductor Devices and ICs).

@inproceedings{794a8c09bd7444768d738fce93568143,

title = "Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion",

abstract = "In this paper, novel fan-out-package-embedded coupled inductors are proposed and demonstrated for integrated voltage conversion. The coupled inductors have two interleaved thick windings embedded in a silicon-based fan-out package and surrounding an embedded die which is the control IC of a voltage converter. Fan-out-package-embedded coupled inductors with an inductance of 2.5 nH and a coupling factor of 0.85 are designed and fabricated for a high-frequency buck converter application. The fabricated coupled inductors show a dc resistance of 5 mO and an ac resistance of 77 mO at 170 MHz. Using the coupled inductors, the integrated converter achieves a very high efficiency of 90.4\% for 0.19 A, 170 MHz, 1. 2-0.9V voltage conversion, which is significantly higher than that of the converters implemented using other inductor approaches.",

keywords = "coupled inductors, integrated inductor, integrated voltage conversion, integrated voltage regulator",

author = "Yixiao Ding and Xiangming Fang and Rongxiang Wu and Sin, \{Johnny K.O.\}",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020 ; Conference date: 13-09-2020 Through 18-09-2020",

year = "2020",

month = sep,

doi = "10.1109/ISPSD46842.2020.9170128",

language = "English",

series = "Proceedings of the International Symposium on Power Semiconductor Devices and ICs",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "356--359",

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}

Ding, Y, Fang, X, Wu, R & Sin, JKO 2020, Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion. in Proceedings of the 2020 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020., 9170128, Proceedings of the International Symposium on Power Semiconductor Devices and ICs, vol. 2020-September, Institute of Electrical and Electronics Engineers Inc., pp. 356-359, 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020, Virtual, Online, Austria, 13/09/20. https://doi.org/10.1109/ISPSD46842.2020.9170128

Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion. / Ding, Yixiao; Fang, Xiangming; Wu, Rongxiang et al.
Proceedings of the 2020 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 356-359 9170128 (Proceedings of the International Symposium on Power Semiconductor Devices and ICs; Vol. 2020-September).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

TY - GEN

T1 - Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion

AU - Ding, Yixiao

AU - Fang, Xiangming

AU - Wu, Rongxiang

AU - Sin, Johnny K.O.

PY - 2020/9

Y1 - 2020/9

N2 - In this paper, novel fan-out-package-embedded coupled inductors are proposed and demonstrated for integrated voltage conversion. The coupled inductors have two interleaved thick windings embedded in a silicon-based fan-out package and surrounding an embedded die which is the control IC of a voltage converter. Fan-out-package-embedded coupled inductors with an inductance of 2.5 nH and a coupling factor of 0.85 are designed and fabricated for a high-frequency buck converter application. The fabricated coupled inductors show a dc resistance of 5 mO and an ac resistance of 77 mO at 170 MHz. Using the coupled inductors, the integrated converter achieves a very high efficiency of 90.4% for 0.19 A, 170 MHz, 1. 2-0.9V voltage conversion, which is significantly higher than that of the converters implemented using other inductor approaches.

AB - In this paper, novel fan-out-package-embedded coupled inductors are proposed and demonstrated for integrated voltage conversion. The coupled inductors have two interleaved thick windings embedded in a silicon-based fan-out package and surrounding an embedded die which is the control IC of a voltage converter. Fan-out-package-embedded coupled inductors with an inductance of 2.5 nH and a coupling factor of 0.85 are designed and fabricated for a high-frequency buck converter application. The fabricated coupled inductors show a dc resistance of 5 mO and an ac resistance of 77 mO at 170 MHz. Using the coupled inductors, the integrated converter achieves a very high efficiency of 90.4% for 0.19 A, 170 MHz, 1. 2-0.9V voltage conversion, which is significantly higher than that of the converters implemented using other inductor approaches.

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KW - integrated inductor

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KW - integrated voltage regulator

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ER -

Ding Y, Fang X, Wu R, Sin JKO. Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion. In Proceedings of the 2020 32nd International Symposium on Power Semiconductor Devices and ICs, ISPSD 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 356-359. 9170128. (Proceedings of the International Symposium on Power Semiconductor Devices and ICs). doi: 10.1109/ISPSD46842.2020.9170128

Fan-Out-Package-Embedded Coupled Inductors for Integrated Voltage Conversion

Abstract

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Bibliographical note

Keywords

Access to Document

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