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A New Fan-Out-Package-Embedded Power Inductor Technology

  • Yixiao DIng
  • , Xiangming Fang
  • , Rongxiang Wu
  • , Johnny K.O. Sin

Research output: Contribution to journalJournal Articlepeer-review

Abstract

In this letter, a fan-out-package-embedded power inductor technology is proposed. The inductor is embedded in a silicon-based fan-out package and surrounds the packaged die in which a voltage converter IC can be put. To demonstrate the integrated power inductor technology, a 2.4-nH air-core inductor for integrated voltage regulator applications is fabricated. The fabricated inductor shows a dc resistance of 5.0 text{m}Omega and quality factors of 43-67 in the frequency range of 100-500 MHz. The small dc resistance and high quality factors make this integrated inductor technology promising for integrated power conversion.

Original languageEnglish
Article number8943300
Pages (from-to)268-271
Number of pages4
JournalIEEE Electron Device Letters
Volume41
Issue number2
DOIs
Publication statusPublished - Feb 2020

Bibliographical note

Publisher Copyright:
© 1980-2012 IEEE.

Keywords

  • Integrated inductor
  • fan-out package
  • integrated power conversion
  • power inductor integration

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