3D metallo-dielectric structures combining electrochemical and electroplating techniques
✍ Scribed by D. Hernández; D. Lange; T. Trifonov; M. Garín; M. García; A. Rodríguez; R. Alcubilla
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 914 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0167-9317
No coin nor oath required. For personal study only.
✦ Synopsis
Three-dimensional (3D) periodic nickel micro-structures with a periodicity of 4 lm and high number of structural periods were fabricated by electrodeposition. Macroporous silicon, consisting of periodic arrays of sine-wave modulated pores, was used as a deposition template. It was prepared by electrochemical etching of silicon and subsequent pore widening by multiple oxidation/oxide-removal steps. The pore widening allows to open windows between adjacent pores obtaining a 3D network of interconnected voids embedded in silicon. This structure is then void-free filled with nickel in the electroplating process. The combination of electrochemical etching and electroplating techniques opens a route for the fabrication of large-scale 3D-periodic metallic micro-structures.