Analysis of multilayered CoZrNb film on-chip noise suppressor as a function of resistivity and permeability

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

1 Citation (Scopus)

Abstract

Radio frequency integrated circuit (RF IC) is widely applied to small-size multi-function information terminal with higher data transfer rate[1]. Because of the mixed layout of digital and analog circuits in a latest RF IC chip, the electric current-oriented magnetic noise from the digital circuit to the analog circuit will desensitize analog receiver circuit chain. A new method to use FMR losses of magnetic film was proposed and implemented for a cellular phone RF IC receiver circuit, which experimentally demonstrated good noise suppression in the LTE Band 1 (2.1 GHz range) [2]. Analysis of the noise suppressor, however, was not successful [3] because of complicated on-chip FMR, eddy currents and magnetic field distribution associated with crossed-anisotropy multilayered Co85Zr3Nb12 film. Therefore this paper discussed not the crossed anisotropy but the uniaxially aligned multilayer of the same Co85Zr3Nb12 film (Ms= 1.0T, Hk= 1.2 kA/m, resistivity ρ=) covering on the top of MSL (microstrip line) as a model of on-chip wire by using finite element method full wave electromagnetic simulation.

Original languageEnglish
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973224
DOIs
Publication statusPublished - 2015 Jul 14
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
Duration: 2015 May 112015 May 15

Publication series

Name2015 IEEE International Magnetics Conference, INTERMAG 2015

Other

Other2015 IEEE International Magnetics Conference, INTERMAG 2015
CountryChina
CityBeijing
Period15/5/1115/5/15

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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