Fabrication of single-crystal Si microstructures by anodization

Katsuya Higa, Tanemasa Asano

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


We have investigated the application of the anodization process to the fabrication of microstructures consisting of single-crystal Si. When anodization is carried out in the dark, porous Si is preferentially formed in a p-type region. The porous region can be used as a sacrificial region. The unanodized Si region forms the components of the microstructures. The shape of the porous region can be controlled by varying the profiles of the n- and p-type regions and their resistivity. It has been found that, by utilizing these characteristics, various microstructures can be formed from single-crystal Si. Fabrication of a cantilever and a piezoresistive gauge for a pressure sensor are demonstrated.

Original languageEnglish
Pages (from-to)6648-6651
Number of pages4
JournalJapanese Journal of Applied Physics
Issue number12 SUPPL. B
Publication statusPublished - Dec 1996

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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