An optimized Cu-Ni nanocomposite coil for low-power electromagnetic microspeaker fabrication

Author

Chen, Y.C. ; Liu, Wei-Ting ; Chao, Tzu-Yuan ; Cheng, Y.T.

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2009

fDate

21-25 June 2009

Firstpage

25

Lastpage

28

Abstract

This paper presents an optimized Cu-Ni nanocomposite coil synthesized based on the trade-off of resistivity and permeability of the nanocomposite for low-power electromagnetic microspeaker fabrication. A 200 mum wide composite coil plated in an alkaline noncyanide copper based bath that is added with 2 g/L of Ni nanopowders can realize ~40% power saving of the speaker performed in a frequency range of 1 to 6 kHz as compared with the coil made of pure Cu for the same speaker design.

Keywords

coils; copper alloys; electromagnetic actuators; loudspeakers; low-power electronics; microfabrication; nanocomposites; nanoparticles; nickel alloys; CuNi; frequency 1 kHz to 6 kHz; low-power electromagnetic microspeaker fabrication; nanocomposite coil optimization; nanocomposite permeability; nanocomposite resistivity; nanopowder; Coils; Conductivity; Copper; Current; Electromagnetic forces; Fabrication; Magnetic fields; Magnetic flux; Magnetic properties; Permeability; Cu-Ni nanocomposite coil; electromagnetic force; low-power; microspeaker;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems Conference, 2009. TRANSDUCERS 2009. International

Conference_Location

Denver, CO

Print_ISBN

978-1-4244-4190-7

Electronic_ISBN

978-1-4244-4193-8

Type

conf

DOI

10.1109/SENSOR.2009.5285572

Filename

5285572