Lithography

Optical and electron beam lithography

Lithography

Metal lines
(width < 20 nm)

Lithography 1

Metal nanodots Cr/Au
(diameter < 50 nm)

Lithography 2

Alignment of two layers
using e-beam lithography

High resolution e-beam lithography + lift off process

Pioneer e-beam lithography toolc(Raith)

  • Field Emission Gun (FEG) 2nm
  • 5x5 cm Laser Interferometer Stage
  • Stitching and Alignement <20nm
  • Autofocus system

MJB4 Mask Aligner (Süss Microtec)

  • UV Lithography
  • Filtered light at 365nm
  • Resolution 0.8µm
  • Wafer sizes up to 4" (100mm)
  • Realignment precision <1µm

µMLA Maskless Lithography (Heidelberg Instruments)

  • Maskless UV lithography
  • 365nm light
  • Resolution 1 µm
  • Wafer size up to 100 mm
  • Alignment precision 1 µm