1 μm-thickness ultra-flexible and high electrode-density surface electromyogram measurement sheet with 2 v organic transistors for prosthetic hand control

Hiroshi Fuketa, Kazuaki Yoshioka, Yasuhiro Shinozuka, Koichi Ishida, Tomoyuki Yokota, Naoji Matsuhisa, Yusuke Inoue, Masaki Sekino, Tsuyoshi Sekitani, Makoto Takamiya, Takao Someya, Takayasu Sakurai

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A 64-channel surface electromyogram (EMG) measurement sheet (SEMS) with 2 V organic transistors on a 1 μm-thick ultra-flexible polyethylene naphthalate (PEN) film is developed for prosthetic hand control. The surface EMG electrodes must satisfy the following three requirements; high mechanical flexibility, high electrode density and high signal integrity. To achieve high electrode density and high signal integrity, a distributed and shared amplifier (DSA) architecture is proposed, which enables an in-situ amplification of the myoelectric signal with a fourfold increase in EMG electrode density. In addition, a post-fabrication select-and-connect (SAC) method is proposed to cope with the large mismatch of organic transistors. The proposed SAC method reduces the area and the power overhead by 96% and 98.2%, respectively, compared with the use of conventional parallel transistors to reduce the transistor mismatch by a factor of 10.

Original languageEnglish
Article number6828792
Pages (from-to)824-833
Number of pages10
JournalIEEE Transactions on Biomedical Circuits and Systems
Volume8
Issue number6
DOIs
Publication statusPublished - 2014 Dec 1
Externally publishedYes

Keywords

  • Electromyogram
  • Organic large-area electronics
  • Surface EMG measurement

ASJC Scopus subject areas

  • Biomedical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Fuketa, H., Yoshioka, K., Shinozuka, Y., Ishida, K., Yokota, T., Matsuhisa, N., Inoue, Y., Sekino, M., Sekitani, T., Takamiya, M., Someya, T., & Sakurai, T. (2014). 1 μm-thickness ultra-flexible and high electrode-density surface electromyogram measurement sheet with 2 v organic transistors for prosthetic hand control. IEEE Transactions on Biomedical Circuits and Systems, 8(6), 824-833. [6828792]. https://doi.org/10.1109/TBCAS.2014.2314135