Communication—A Cyanide-Free Electrolyte for Hard Gold (Au-Co) Electrodepositing Utilizing DMH as Complexing Agent
Year: 2018
Type: article
Abstract: A novel cyanide-free electrolyte was reported for Au-Co alloy electrodepositing. Firstly, an optimized electrolyte for Au-Co alloy electrodepositing was obtained from orthogonal experiment. By using optimized electrolyte, a desirable hard gold layer was obtained, which has a similar surface morphology, thickness and a comparative hardness to PCB bonding finger hard gold film. Then, XRD analysis revealed electrodeposits from the cyanide-free system performed supersaturated cobalt dissolved into gold crystal lattice and grew preferentially on Au (111). In summary, the electrolyte would have an extensive application in hard gold cyanide-free electroplating.
DOI: 10.1149/2.0291803jes
Authors: Gong Luo, Deyu Li, Guohui Yuan, Ning Li
Institution: Harbin Institute of Technology
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2792069100