Influence of de-bubbling on crystal structure and magnetic properties of electrodeposited CoNiP layers

Author

Tseng, B. ; Xu, Z. ; Chang, C. ; Hsiao, C. ; Liu, S. ; Hsiao, S. ; Sung, C. ; Chin, T.

Author_Institution

Mater. Sci. & Eng., Feng Chia Univ., Taiching, Taiwan

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

Hard magnetic layers have been motivated in the development of microelectromechanical systems (MEMS) components such as micro-actuators, field generators, and micro-motors. Electrodeposition (ED) has been an efficient and cost-effective way to fabricate these magnetic components due to its fast deposition rate and compatibility with lithographic patterns. Electrodeposited CoNiP layers exhibit high coercivity and magnetic energy density which are suitable for use in MEMS. Nevertheless, hydrogen bubbles are unavoidable during ED giving rise to detrimental surface morphology, microstructure and film adhesion to substrate. Therefore, how to eliminate H₂ bubbles is vital during ED. In this paper, we report the manifest effects of stirring methods on crystal structure and magnetic properties of ED CoNiP layers.

Keywords

adhesion; bubbles; cobalt alloys; coercive force; crystal microstructure; crystal structure; electrodeposition; magnetic thin films; metallic thin films; nickel alloys; permanent magnets; phosphorus alloys; surface morphology; CoNiP; coercivity; crystal structure; debubbling; detrimental surface morphology; electrodeposited CoNiP layers; fast deposition rate; field generators; film adhesion; hard magnetic layers; hydrogen bubbles; lithographic patterns; magnetic energy density; microactuators; microelectromechanical system components; micromotors; microstructure; stirring method effects; Crystals; Magnetic hysteresis; Magnetic properties; Magnetometers; Nitrogen; Perpendicular magnetic anisotropy;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7157192

Filename

7157192