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Heidelberg u101 Laser Writer Print
Heidelberg µPG 101 Laser Writer

General Information
The μPG 101 is an extremely economical and easy to use micro pattern generator for direct writing applications and low volume mask making. The system can be used for applications like MEMS, BioMEMS, Integrated Optics, Micro Fluidics or any other application that requires high precision, high resolution microstructures.

Key features and options

  • Substrates up to 100 x 100 mm2
  • Structures down to 1 μm
  • Address grid down to 40 nm
  • Vector and Raster exposure mode
  • 3D exposure mode
  • Standard or UV laser source
  • Multiple data input formats (DXF, CIF, BMP)
  • Camera system for alignment
  • Software development kit

    • Lithography Materials and Processing Capabilities

    The µPG works with a laser wavelength of either 405 nm or 375 nm (UV option). To do lithographic exposures, the photosensitive coating of the substrates has to be chosen according to the wavelength used and the intended application. Standard substrates for masks are chromium coated plates of float glass or quartz (depending on the requirements concerning temperature stability) with anti-reflection layer (e.g., chromium-oxide), or silicium wafers. Recommended photoresist coatings are:
  • binary exposures (2D) on thin resists (~5000 Å):
    • S1805: A Shipley resist from the S1800 family that is spin-coated to 0.5 µm thickness
    • AZ1350, AZ1505: Clariant resists which are comparable to the S1805
  • 3D resists structuring:
    • AZ4562: A Clariant resist with a thickness of ~6 µm (exact number depends on coating process)
    • AZ9260: Another Clariant resist with higher quality that can be coated with higher thickness.
    • SU-8: negative photoresist, requires UV option.





    Contact Information
    For additional information about the Heidelberg µPG 101 Laser Writer, please contact Geoff Goold at gg2332@columbia.edu.