Characterization of novel varistor+inductor integrated passive devices

Author

Raghavendra, Ramesh ; Bellew, Pat ; Mcloughlin, Neil ; Stojanovic, Goran ; Damnjanovic, Mirjana ; Desnica, Vladan ; Zivanov, Ljiljana

Author_Institution

Littelfuse Ireland Ltd., Dundalk, Ireland

Volume

25

Issue

12

fYear

2004

Firstpage

778

Lastpage

780

Abstract

This letter describes the design, modeling, simulation, and fabrication of novel integrated passive devices (IPDs). These IPDs, comprising of a cofired multilayered varistor and inductor, have been developed in the ceramic coprocessing technology. The equivalent model of the new structures is presented, suitable for design and circuit simulations. The fabrication method, new design of structures and patented materials of these devices lead to improved characteristics suitable for application in high-frequency suppressors. The IPDs were tested in the frequency range of 1 MHz-3 GHz using an Agilent 4287A RF LCR meter. The measurements confirm the validity of the proposed model.

Keywords

circuit simulation; coils; inductors; passive networks; surface mount technology; surge protection; varistors; 1 to 3000 MHz; Agilent 4287A RF LCR meter; ceramic coprocessing technology; circuit simulations; cofired inductor; cofired varistor; fabrication method; high-frequency suppression; high-frequency suppressors; integrated passive devices; multilayered inductor; multilayered varistor; surface mounted devices; varistor+inductor IPD; Ceramics; Circuit simulation; Coils; Equivalent circuits; Fabrication; Frequency; Inductors; Lead; Protection; Varistors; 65; Coils; high-frequency suppression; integrated passive devices; surface mounted devices; varistor;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2004.838321

Filename

1362772