Micropatterned dry electrodes for brain-computer interface

M. Matteucci, R. Carabalona, M. Casella, E. Di Fabrizio, F. Gramatica, M. Di Rienzo, E. Snidero, L. Gavioli, M. Sancrotti

Research output: Contribution to journalArticlepeer-review

Abstract

Electroencephalography (EEG) recordings can be used to help paralyzed patients by replacing functionality of damaged neural connections through the aid of a brain-computer interface. Conventional electrodes used for EEG require long skin preparation due to the impedance of the outermost layers of skin. On the contrary, dry spiked electrodes allow overcoming of impedance problems and can be suitable for long-term measurements. This paper describes microfabrication and packaging of micropatterned dry electrodes built with deep X-ray lithography, electroplating and soft lithography. Preliminary measurements performed with electrodes having different geometries are also described.

Original languageEnglish
Pages (from-to)1737-1740
Number of pages4
JournalMicroelectronic Engineering
Volume84
Issue number5-8
DOIs
Publication statusPublished - May 2007

Keywords

  • Biopotential electrodes
  • Brain-computer interface
  • Deep X-ray lithography
  • LIGA
  • Soft lithography

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Atomic and Molecular Physics, and Optics

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