Title :
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
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;
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
DOI :
10.1109/SENSOR.2009.5285572
