HEIDELBERG µPG 101 LASER WRITER


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HEIDELBERG WEBSITE | STANDARD OPERATING PROCEDURE | MORE INFORMATION

GENERAL INFORMATION

The μPG 101 is an 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, and Micro Fluidics. The system is now available to use in the new clean room.

KEY FEATURES AND OPTIONS

  • Substrates up to 100 x 100 mm2

  • Critical dimension resolution is 3 μm

  • Address grid down to 120 nm for the 3 μm.

  • Multiple data input formats (DXF, CIF, BMP)

  • Camera system for alignment

Lithography Materials and Processing Capabilities
The µPG laser wavelength is 405 nm. To use direct 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 silicon 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: Thick resist ~6 µm (exact number depends on coating process)

  • AZ9260: Another Clariant resist with higher quality that can be coated with higher thickness.

CONTACT INFORMATION
For additional information about the Heidelberg µPG 101 Laser Writer, please contact Dr. Jen Yu at jy2488@columbia.edu or email the clean room staff at cnicleanroom@columbia.edu.