PCB Embedded Bondwire Inductors with Discrete Thin-Film Magnetic Core for Power Supply in Package

Santosh Kulkarni; Dai Li; Declan Jordan; Ningning Wang; Cian O. Mathuna

doi:10.1109/JESTPE.2018.2799238

PCB Embedded Bondwire Inductors with Discrete Thin-Film Magnetic Core for Power Supply in Package

Santosh Kulkarni
, Dai Li
, Declan Jordan
, Ningning Wang
, Cian O. Mathuna

Tyndall IPES (Integrated Power)

University College Cork

Research output: Contribution to journal › Article › peer-review

Abstract

This paper details the design, assembly, and detailed characterization of printed circuit board (PCB) embedded thin magnetic film inductors for Power Supply in Package applications. Solenoidal inductors were assembled on copper tracks printed on PCB with wire bonds to complete the copper loop. Furthermore, the solenoid inductors have laminated amorphous soft magnetic thin films embedded between the two conductor layers. The devices have chemically thinned Vitrovac films laminated as core material. Three different designs of solenoid inductors with different numbers of turns are assembled and characterized. The assembled PCB inductor measured a highest quality factor of 8.5 for a three-turn device at 10 MHz.

Original language	English
Pages (from-to)	614-620
Number of pages	7
Journal	IEEE Journal of Emerging and Selected Topics in Power Electronics
Volume	6
Issue number	2
DOIs	https://doi.org/10.1109/JESTPE.2018.2799238
Publication status	Published - Jun 2018

Keywords

Integrated circuits
power conversion
power inductors
printed circuit board (PCB)-based magnetic devices
switched-mode power supply
thin-film magnetic core

Access to Document

10.1109/JESTPE.2018.2799238

https://hdl.handle.net/10468/5553Licence: CC BY-NC-ND

Cite this

@article{5e97903a454f4881a0bf2cee18969880,

title = "PCB Embedded Bondwire Inductors with Discrete Thin-Film Magnetic Core for Power Supply in Package",

abstract = "This paper details the design, assembly, and detailed characterization of printed circuit board (PCB) embedded thin magnetic film inductors for Power Supply in Package applications. Solenoidal inductors were assembled on copper tracks printed on PCB with wire bonds to complete the copper loop. Furthermore, the solenoid inductors have laminated amorphous soft magnetic thin films embedded between the two conductor layers. The devices have chemically thinned Vitrovac films laminated as core material. Three different designs of solenoid inductors with different numbers of turns are assembled and characterized. The assembled PCB inductor measured a highest quality factor of 8.5 for a three-turn device at 10 MHz.",

keywords = "Integrated circuits, power conversion, power inductors, printed circuit board (PCB)-based magnetic devices, switched-mode power supply, thin-film magnetic core",

author = "Santosh Kulkarni and Dai Li and Declan Jordan and Ningning Wang and Mathuna, \{Cian O.\}",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

year = "2018",

month = jun,

doi = "10.1109/JESTPE.2018.2799238",

language = "English",

volume = "6",

pages = "614--620",

journal = "IEEE Journal of Emerging and Selected Topics in Power Electronics",

issn = "2168-6777",

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

number = "2",

}

TY - JOUR

T1 - PCB Embedded Bondwire Inductors with Discrete Thin-Film Magnetic Core for Power Supply in Package

AU - Kulkarni, Santosh

AU - Li, Dai

AU - Jordan, Declan

AU - Wang, Ningning

AU - Mathuna, Cian O.

PY - 2018/6

Y1 - 2018/6

N2 - This paper details the design, assembly, and detailed characterization of printed circuit board (PCB) embedded thin magnetic film inductors for Power Supply in Package applications. Solenoidal inductors were assembled on copper tracks printed on PCB with wire bonds to complete the copper loop. Furthermore, the solenoid inductors have laminated amorphous soft magnetic thin films embedded between the two conductor layers. The devices have chemically thinned Vitrovac films laminated as core material. Three different designs of solenoid inductors with different numbers of turns are assembled and characterized. The assembled PCB inductor measured a highest quality factor of 8.5 for a three-turn device at 10 MHz.

AB - This paper details the design, assembly, and detailed characterization of printed circuit board (PCB) embedded thin magnetic film inductors for Power Supply in Package applications. Solenoidal inductors were assembled on copper tracks printed on PCB with wire bonds to complete the copper loop. Furthermore, the solenoid inductors have laminated amorphous soft magnetic thin films embedded between the two conductor layers. The devices have chemically thinned Vitrovac films laminated as core material. Three different designs of solenoid inductors with different numbers of turns are assembled and characterized. The assembled PCB inductor measured a highest quality factor of 8.5 for a three-turn device at 10 MHz.

KW - Integrated circuits

KW - power conversion

KW - power inductors

KW - printed circuit board (PCB)-based magnetic devices

KW - switched-mode power supply

KW - thin-film magnetic core

UR - https://www.scopus.com/pages/publications/85041280868

U2 - 10.1109/JESTPE.2018.2799238

DO - 10.1109/JESTPE.2018.2799238

M3 - Article

AN - SCOPUS:85041280868

SN - 2168-6777

VL - 6

SP - 614

EP - 620

JO - IEEE Journal of Emerging and Selected Topics in Power Electronics

JF - IEEE Journal of Emerging and Selected Topics in Power Electronics

IS - 2

ER -

PCB Embedded Bondwire Inductors with Discrete Thin-Film Magnetic Core for Power Supply in Package

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this