Technology

  • Atomic Layer Deposition – deposition of very thin layers of SiO2, Al2O3, TiO2, HfO2 and ZnO with good coverage of the vertical edges and perfect homogeneity.
  • Deep Reactive Ion Etching – etching of deep trenches and holes with high aspect ratio. Shallow silicon, SiO2, Al2O3 TiO2, HfO2, ZnO etching. Photoresist etching and surface activation.
  • Direct-write optical lithography – photoresist exposition without the need of mask with 600 nm resolution. Layout definition of the electronic devices, optical waveguides and sensors.
  • Inkjet priting technique – selective deposition of conductors (Ag nanoparticle, PEDOT:PSS based inks), dielectrics (SU8, PVP based inks), semiconductors (ZnO, PANI based inks) and seed layers (eg. diamond and ZnO)
  • Spin coating
  • Evaporation
  • High energy pulsed light curing, sintering or annealing – delivering up to 2500 J/pulse, radiant pulse energy up to 7 J.cm-2, pulse range from 100 to 6000 μs
  • UV ozone cleaning – up to 150 °C
  • High temperature annealing
  • Doctor blade applicator

Diagnostics

  • AC and DC electrical characterization – I-V, C-V, impedance (78 to 690 K)
  • Thin film resistivity measurement – van der Pauw (VDP) method, four point probe (4PP) method
  • Deep level transient spectroscopy (DLTS) – up to 690 K
  • Hall-effect measurements
  • Standard electrical and magneto-electrical transport measurements – temperature range 10-350K
  • Optical characterization – photoluminescence, photoconductance and photoreflectance in the UV/VIS range
  • Gas sensor measurements – response/recovery time, stability, reproducibility, repeatability, reversibility, selectivity etc.
  • Optical power measurement
  • m-line spectroscopy
  • Raman spectroscopy characterization – surface characterization using three different laser wavelengths. Analysis of the chemical composition Surface 2D mapping and depth profiling. Lasers 532 nm, 633 nm and 830 nm, temperatures from 78 to 690 K.
  • AFM/SPM characterization of thin films

Simulation

Silvaco TCAD

Synopsys/QuantumWise ATK

CoventorWare

  • CoventorWare (overview.pdf) is an integrated suite of design and simulation software that has the accuracy, capacity, and speed to address real-world MEMS designs.
  • The suite has many MEMS-specific features for modeling and simulating a wide range of MEMS devices, including inertial sensors (accelerometers and gyros), microphones, resonators, and actuators.
  • The included field solvers provide comprehensive coverage of MEMS-specific multi-physics, such as electrostatics, coupled electro-mechanics, piezoelectric, piezoresistive, and damping effects.
  • Common MEMS simulations, including:
  • Coupled electromechanical (ex. Pull-in, electrostatic spring softening)
  • Coupled thermomechanical(ex. Thermoelastic damping, thermal stability)
  • Piezoelectric effects (ex. Stress stiffening)

ANSYS Workbench

  • ANSYS Workbench is a software environment for performing structural, thermal, and electromagnetic analyses.

RSoft

  • The RSoft Photonic Component Design Suite allows users to design and simulate passive photonic devices for optical communications, optoelectronics, and semiconductor manufacturing (rsoft.pdf, allinone.pdf).
  • List of available device simulators:
  • BeamPROP – Simulates waveguides, photonic integrated circuits, and fiber applications (BeamProp.pdf)
  • FullWAVE – Propagates light in micro- and nano-photonic devices (FullWave.pdf)
  • GratingMOD – Provides the response of optical gratings and fiber Bragg gratings (GratingMod.pdf)
  • DiffractMOD – Simulates diffractive gratings, semiconductor surface gratings, and metrology applications (DiffractMod.pdf)
  • MOST – An iterative design and optimization utility for all of the RSoft passive device design tools (Most.pdf)

OPTICAD

  • OptiCAD is a computer program for the layout and analysis of 3D optical systems.
  • Components include spherical and cylindrical lenses; conical, parabolic, elliptical, spherical, and flat mirrors; full (closed) cylinders and ellipsoids; transmitting and reflecting rods; parabolic and elliptical trougs; single- and double-sided reflective surfaces; apertures of finite extent; lightpipes; multiple sources and detectors; compound parabolic concentrators; Fresnel lenses; and polygonally faceted objects – OptiCAD.pdf

MIDE CAD tools