Microscale magnetic components for the application of DC-DC converters operating in the 1-10 MHz range

David Flynn; Anthony Toon; Marc Desmulliez

doi:10.1109/EMAP.2005.1598260

Microscale magnetic components for the application of DC-DC converters operating in the 1-10 MHz range

David Flynn, Anthony Toon, Marc Desmulliez

School of Engineering & Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

A novel method to manufacture and assemble a microinductor that is based on flip-chip bonding is described in this article. The microinductor is developed for DC-DC converters operating in the MHz switching frequency. The fabricated inductors have an inductance ranging from 0.3µH to 180µH. An optimum Q-factor of 14 was attained at 1MHz. Cobalt-Copper-iron cores maintained a constant inductance across a 1 kHz-1MHz bandwidth. The thin film laminate minimizes the eddy current loss and the hysteresis loss was negligible. Impedance increases linearly with frequency indicating that parasitic capacitance effects in this frequency range are negligible. The microinductor operated at an efficiency of 92% at 1MHz achieving a power density of 3.75 W/mm³. © 2005 IEEE.

Original language	English
Title of host publication	Proceedings - EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging
Pages	192-198
Number of pages	7
Volume	2005
DOIs	https://doi.org/10.1109/EMAP.2005.1598260
Publication status	Published - 2005
Event	EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging - Tokyo, Japan Duration: 11 Dec 2005 → 14 Dec 2005

Conference

Conference	EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging
Country/Territory	Japan
City	Tokyo
Period	11/12/05 → 14/12/05

Keywords

Magnetic MEMS
Power supplies
DC-DC power conversion
materials

Access to Document

10.1109/EMAP.2005.1598260

Cite this

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title = "Microscale magnetic components for the application of DC-DC converters operating in the 1-10 MHz range",

abstract = "A novel method to manufacture and assemble a microinductor that is based on flip-chip bonding is described in this article. The microinductor is developed for DC-DC converters operating in the MHz switching frequency. The fabricated inductors have an inductance ranging from 0.3µH to 180µH. An optimum Q-factor of 14 was attained at 1MHz. Cobalt-Copper-iron cores maintained a constant inductance across a 1 kHz-1MHz bandwidth. The thin film laminate minimizes the eddy current loss and the hysteresis loss was negligible. Impedance increases linearly with frequency indicating that parasitic capacitance effects in this frequency range are negligible. The microinductor operated at an efficiency of 92% at 1MHz achieving a power density of 3.75 W/mm3. {\textcopyright} 2005 IEEE.",

keywords = "Magnetic MEMS, Power supplies, DC-DC power conversion, materials",

author = "David Flynn and Anthony Toon and Marc Desmulliez",

year = "2005",

doi = "10.1109/EMAP.2005.1598260",

language = "English",

isbn = "1424401070",

volume = "2005",

pages = "192--198",

booktitle = "Proceedings - EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging",

note = "EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging ; Conference date: 11-12-2005 Through 14-12-2005",

}

Flynn, D, Toon, A & Desmulliez, M 2005, Microscale magnetic components for the application of DC-DC converters operating in the 1-10 MHz range. in Proceedings - EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging. vol. 2005, pp. 192-198, EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging, Tokyo, Japan, 11/12/05. https://doi.org/10.1109/EMAP.2005.1598260

TY - GEN

T1 - Microscale magnetic components for the application of DC-DC converters operating in the 1-10 MHz range

AU - Flynn, David

AU - Toon, Anthony

AU - Desmulliez, Marc

PY - 2005

Y1 - 2005

N2 - A novel method to manufacture and assemble a microinductor that is based on flip-chip bonding is described in this article. The microinductor is developed for DC-DC converters operating in the MHz switching frequency. The fabricated inductors have an inductance ranging from 0.3µH to 180µH. An optimum Q-factor of 14 was attained at 1MHz. Cobalt-Copper-iron cores maintained a constant inductance across a 1 kHz-1MHz bandwidth. The thin film laminate minimizes the eddy current loss and the hysteresis loss was negligible. Impedance increases linearly with frequency indicating that parasitic capacitance effects in this frequency range are negligible. The microinductor operated at an efficiency of 92% at 1MHz achieving a power density of 3.75 W/mm3. © 2005 IEEE.

AB - A novel method to manufacture and assemble a microinductor that is based on flip-chip bonding is described in this article. The microinductor is developed for DC-DC converters operating in the MHz switching frequency. The fabricated inductors have an inductance ranging from 0.3µH to 180µH. An optimum Q-factor of 14 was attained at 1MHz. Cobalt-Copper-iron cores maintained a constant inductance across a 1 kHz-1MHz bandwidth. The thin film laminate minimizes the eddy current loss and the hysteresis loss was negligible. Impedance increases linearly with frequency indicating that parasitic capacitance effects in this frequency range are negligible. The microinductor operated at an efficiency of 92% at 1MHz achieving a power density of 3.75 W/mm3. © 2005 IEEE.

KW - Magnetic MEMS

KW - Power supplies

KW - DC-DC power conversion

KW - materials

UR - http://www.scopus.com/inward/record.url?scp=33847293673&partnerID=8YFLogxK

U2 - 10.1109/EMAP.2005.1598260

DO - 10.1109/EMAP.2005.1598260

M3 - Conference contribution

SN - 1424401070

SN - 9781424401079

VL - 2005

SP - 192

EP - 198

BT - Proceedings - EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging

T2 - EMAP 2005: 2005 International Symposium on Electronics Materials and Packaging

Y2 - 11 December 2005 through 14 December 2005

ER -

Microscale magnetic components for the application of DC-DC converters operating in the 1-10 MHz range

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Keywords

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