Electrodeposition of Nickel-Cobalt Alloys from the Pyrophosphate Bath

Sree, Vasanta; Char, T.L. Rama

doi:10.1149/1.2428012

Cited by 16 publications

(8 citation statements)

References 4 publications

(9 reference statements)

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“…19 In any case hexagonal close packed ͑hcp͒ structure was observed, contrary to what occurs from other plating baths. 20,21 Therefore, the chloride bath tested allows us preparation of homogeneous Co-Ni coatings of selected cobalt percentage depending on the plating conditions.…”

Section: Resultsmentioning

confidence: 99%

Development and Characterization of Co-Ni Alloys for Microsystems Applications

Duch

Estéve

Gómez

et al. 2002

J. Electrochem. Soc.

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A chloride plating bath, containing boric acid and saccharin has been optimized to obtain homogeneous Co-Ni deposits over normalSi/SiO2/normalTi/normalNi substrate. The goal is to explore the synergy of these layers in microsystems applications. Anomalous codeposition occurs and both electrochemical and structural results indicate that obtained Co-Ni layers correspond to solid solutions of face-centered cubic (fcc) structure, whose composition may be varied as a function of the electrodeposition parameters. Results of the electrochemical and magnetic characterization carried out are presented, showing the trends of a soft magnetic material, i.e., high saturation magnetization (1.2 T) and low coercivity. Smooth surfaces and a steady deposition rate were observed in the Co-Ni deposits on silicon-based unpatterned substrates. In order to check the versatility and the compatibility of this Co-Ni electrodeposition with the standard microsystems fabrication technology, two processes, surface- and bulk-technology based, have been carried out. Due to the high selectivity and homogeneity of the Co-Ni layer, it has been possible to pattern the deposits with a definition down to 10 μm, as well as to fabricate 3D structures. Methods to liberate the Co-Ni films from the silicon-based substrate have been developed; as a result, low-stressed freestanding structures are presented. © 2002 The Electrochemical Society. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Development and Characterization of Co-Ni Alloys for Microsystems Applications

Duch

Estéve

Gómez

et al. 2002

J. Electrochem. Soc.

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“…In one, Fe(III) is complexed with triethanolamine and ethylenediaminetetraacetic acid [71,72]. In the other, the main constituent of the bath is Fe(III) pyophosphate [73]. Only thin deposits have been reported from these baths.…”

Section: Other Bathsmentioning

confidence: 99%

Electrodeposition of Iron and Iron Alloys

Izaki

2010

Modern Electroplating

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“…The basic composition of the bath and the deposition conditions are shown in Table 1 [21]. A three electrode system with a cell volume of 300 ml was used to perform the experiments.…”

Section: Electrodeposition Of Composite Layersmentioning

confidence: 99%

“…The zinc content of the binary alloys ranged between 80 and 98 at.% whereas the current efficiency varied from 40-85% depending upon the composition, pH and temperature of the electrolyte as well as the current density. According to Sree and Char [21] the zinc content in the binary alloy varies between 10 and 90 at.% and the cathodic current efficiency ranges from 42 to 85%, depending on the working parameters.…”

Section: Znfe Alloy Depositionmentioning

confidence: 99%