Magnetic nanoparticle ink for RF integrated inductor applications

Author

Kaiyuan Zeng ; Allen, Wesley N. ; Sinani, Mihal ; Martinez, Carlos ; Peroulis, Dimitrios

Author_Institution

Birck Nanotechnol. Center, Purdue Univ., West Lafayette, IN, USA

fYear

2014

fDate

1-6 June 2014

Firstpage

1

Lastpage

4

Abstract

For the first time, a magnetic ink containing permalloy nanoparticles coated with a polyelectrolyte shell is presented for miniaturization of radio frequency (RF) integrated inductors. Coating permalloy particles with an electrolyte polymer provides particle separation which minimizes eddy current losses. Coated particles are incorporated into a viscous ink to enable precise deposition. This magnetic ink is integrated with a single-turn planar inductor. Measurements show a 40% inductance enhancement at GHz frequencies, a peak quality factor of 7.1, and a self-resonant frequency of 4.84 GHz. When compared with recent literature, this method shows promise for reducing the size of RF passives.

Keywords

Q-factor; electrolytes; inductors; magnetic particles; nanomagnetics; nanoparticles; polymers; RF integrated inductor applications; RF passives; coated particles; eddy current losses; electrolyte polymer; frequency 4.84 GHz; inductance enhancement; magnetic nanoparticle ink; particle separation; permalloy nanoparticles; permalloy particles; polyelectrolyte shell; quality factor; radio frequency integrated inductors; self-resonant frequency; single-turn planar inductor; viscous ink; Atmospheric measurements; Ink; Particle measurements; Permeability measurement; Welding; Inductors; Q-factor; inductance enhancement; nanoparticles; permalloy ink;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2014 IEEE MTT-S International

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/MWSYM.2014.6848576

Filename

6848576