Contactless measurement of thin film conductivity by a microwave compact equipment

Yang Ju, Yo Hirosawa, Masumi Saka, Hiroyuki Abé

Research output: Contribution to journalArticlepeer-review


A method for contactless measurement of the conductivity of thin conducting film was demonstrated. In order to apply the technique to on-line testing, a large standoff distance of 35 mm was obtained by using a reflector focusing sensor. The measurement was preformed by using a microwave compact equipment working at 94 GHz which was developed for decreasing the system cost. Indium Tin Oxide films having conductivity of 8.2×104-6.6×105 S/m on the glass substrates were used as the samples. Evaluation equation for determining the conductivity of Indium Tin Oxide films was generated.

Original languageEnglish
Pages (from-to)1904-1909
Number of pages6
JournalInternational Journal of Modern Physics B
Issue number8-9 II
Publication statusPublished - 2003 Apr 10

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics


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