Development and test of model apparatus of non-contact spin processor for photo mask production applying radial-type superconducting magnetic bearing

Kimiyo Saito, Satoshi Fukui, Masaru Maezawa, Jun Ogawa, Tetsuo Oka, Takao Sato

Research output: Contribution to journalArticle

2 Citations (Scopus)


In semiconductor devices, miniaturization of circuit patterning on wafers is required for higher integrations of circuit elements. Therefore, very high tolerance and quality are also required for patterning of microstructures of photo masks. The deposition of particulate dusts generated from mechanical bearings of the spin processor in the patterns of the photo mask is one of main causes of the deterioration of pattern preciseness. In our R&D, application of magnetic bearing utilizing bulk high temperature superconductors to the spin processors has been proposed. In this study, we develop a test spinner for the non-contact spinning process in the photo mask production system. The rotation test by using this test spinner shows that this test spinner accomplishes the improvement of the spinning ability compared with the test spinner developed in our previous study. This paper describes the rotation test results of the new test spinner applying the magnetic bearing with bulk high temperature superconductors.

Original languageEnglish
Pages (from-to)321-324
Number of pages4
JournalPhysica C: Superconductivity and its applications
Publication statusPublished - 2013 Jan 15



  • Bulk HTS
  • Magnetic bearing
  • Spin processor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this