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Proceedings Article

Micro-optic fabrication using one-level gray-tone lithography

[+] Author Affiliations
Klaus Reimer, Hans Joachim Quenzer, M. Juerss, Bernd Wagner

Fraunhofer-Institute for Silicon Technology (Germany)

Proc. SPIE 3008, Miniaturized Systems with Micro-Optics and Micromechanics II, 279 (April 11, 1997); doi:10.1117/12.271425
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From Conference Volume 3008

  • Miniaturized Systems with Micro-Optics and Micromechanics II
  • M. Edward Motamedi; Larry J. Hornbeck; Kristofer S. J. Pister
  • San Jose, CA | February 08, 1997


This paper reports on a methodology to fabricate arbitrarily shaped structures using technologies common to standard IC manufacturing processes. Particular emphasis is put on the design and use of halftone transmission masks for the lithography step required in the fabrication process of mechanical, optical or electronic components. The algorithms to transfer an initial height profile into a design representation in the common data format GDSII are discussed. This set of data could be used directly by a commercial mask shop. The great data amount of a reticle layout is reduced significantly by a linear working data compaction algorithm. The nonlinear influences of the different process steps on the transfer function are regarded. The specific parameters for the mask making and the resist process are determined. Several components like shaped gratings or lenses are realized in resist up to 10 micrometers thick. In the field of transfering the pattern into a substrate material like silicon, a dry etching process is evaluated.

© (1997) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Klaus Reimer ; Hans Joachim Quenzer ; M. Juerss and Bernd Wagner
"Micro-optic fabrication using one-level gray-tone lithography", Proc. SPIE 3008, Miniaturized Systems with Micro-Optics and Micromechanics II, 279 (April 11, 1997); doi:10.1117/12.271425; http://dx.doi.org/10.1117/12.271425

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