Three Dimensional Micro Fabrication of Photoresist and Resin Materials by Using Gray-scale Lithography and Molding

Ryotaro Mori, Kei Hanai, Yoshinori Matsumoto

Research output: Contribution to journalArticle

12 Citations (Scopus)


Three dimensional structures on SU-8 photoresist were fabricated by gray-scale lithography. A thin glass substrate was plastered over with SU-8 and UV light was irradiated through the glass substrate. SU-8 structures with maximum 400 µm height and strong adhesion to the substrate were achieved by the lithography technique. The relation between gray-scale value and the resist height were evaluated and the maximum surface roughness of the structure was 0.98 µm. Three dimensional structures such as micro capillaries were fabricated on PDMS from the SU-8 structures by molding.

Original languageEnglish
Pages (from-to)359-363
Number of pages5
JournalIEEJ Transactions on Sensors and Micromachines
Issue number10
Publication statusPublished - 2006



  • 3-D micro machining
  • gray-scale lithography
  • molding
  • PDMS
  • SU-8

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

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