Influence of Pulse Reverse Plating on the Properties of Ni-Fe Thin Films

Author

Flynn, David ; Desmulliez, Marc P Y

Author_Institution

Microsyst. Eng. Centre, Heriot-Watt Univ., Edinburgh, UK

Volume

46

Issue

4

fYear

2010

fDate

4/1/2010 12:00:00 AM

Firstpage

979

Lastpage

985

Abstract

NiFe thin films deposited by pulse reverse (PR) electrodeposition are promising candidates for the next generation of core magnetic material to be used in magnetic components operating at high switching frequency. The influence of PR electroplating on the structural, magnetic and electrical properties of NiFe is assessed by means of a design of experiment (DOE). Results are compared to NiFe alloys produced by direct current (dc) deposition from an identical electrolyte. The PR samples exhibit an increase in resistivity and relative permeability by a factor of 2 and 1.5, respectively, in comparison to the dc samples. The coercivity and saturation flux density of the PR samples are reduced by 37% and 5%, respectively.

Keywords

coercive force; design of experiments; electrical resistivity; electroplating; iron alloys; magnetic permeability; magnetic thin films; metallic thin films; nickel alloys; DOE; NiFe; PR electroplating; coercivity; core magnetic material; dc deposition; design of experiment; direct current deposition; electrical properties; high switching frequency; magnetic properties; pulse reverse electrodeposition; pulse reverse plating effect; relative permeability; resistivity; saturation flux density; structural properties; thin films; DC-DC power conversion; electrodeposition; inductor; magnetic;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2036723

Filename

5339220