On-chip magnetic thin-film noise suppressor for IC chip level digital noise countermeasure

Masahiro Yamaguchi, Yasushi Endo, Satoshi Tanaka, Tetsuo Ito, Sho Muroga, Naoya Azuma, Makoto Nagata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Crossed anisotropy amorphous Co85Zr3Nb12 thin film with total magnetic thickness of 2.0 μm is deposited on to the passivation of a bare IC chip to accommodate intra IC chip level digital-to-RF noise suppression and telecommunication performance. On-chip magnetic film processes can be done as the last steps of Si CMOS back end processes. Radiated emission from embedded arbitrary noise generator is suppressed by more than 10 dB. In-band spurious tone is attenuated by 10 dB. Minimum input power level to meet the 3GPP criteria is improved by 8 dB. All of these results are achieved on the fully LTE compliant RF receiver chain.

Original languageEnglish
Title of host publicationEMC 2014/Tokyo - 2014 International Symposium on Electromagnetic CompatibiIity, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages354-357
Number of pages4
ISBN (Electronic)9784885522871
Publication statusPublished - 2014 Dec 23
Event2014 International Symposium on Electromagnetic CompatibiIity, EMC 2014 - Tokyo, Japan
Duration: 2014 May 122014 May 16

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
Volume2014-December
ISSN (Print)1077-4076
ISSN (Electronic)2158-1118

Other

Other2014 International Symposium on Electromagnetic CompatibiIity, EMC 2014
CountryJapan
CityTokyo
Period14/5/1214/5/16

Keywords

  • EMC
  • RFIC
  • cellular phone handset
  • electromagnetic noise suppressor
  • ferromagnetic film
  • signal integrity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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