Equipment

Electron beam resolution

  • At optimum WD
    • 0.7nm at 1 kV
  • At coincident Point
    • 0.6 nm at 15 kV
    • 1.2 nm at 1 kV

Electron beam parameter space

  • Electron beam current range: 0.8 pA to 100 nA at all accelerating voltages
  • Accelerating voltage range: 350 V – 30 kV
  • Landing energy: 20* eV – 30 keV
  • Maximum horizontal field width: 2.3 mm at 4 mm WD

Ion Optics

High-performance PFIB column with unique Inductively Coupled Plasma (ICP) source supporting four ion species with fast switching capability

  • Ion species (primary ion beam): Xe, Ar, O, N
  • Switching time <10 minutes, only software operation
  • Ion beam current range: 1.5 pA to 2.5 µA
  • Accelerating voltage range: 500 V – 30 kV
  • Maximum horizontal field width: 0.9 mm at beam coincidence point

Xe ion beam resolution at coincident point

  • <20 nm at 30 kV using preferred statistical method
  • <10 nm at 30 kV using selective edge method

Detectors

  • Elstar in-lens SE/BSE detector (TLD-SE, TLD-BSE)
  • Everhart-Thornley SE detector (ETD)
  • IR camera for viewing sample/column
  • High-performance In-Chamber Electron and Ion Detector (ICE), for secondary ions (SI) and electrons (SE)
  • In-Chamber Thermo Scientific Nav-Cam™️ Sample Navigation Camera
  • Retractable low-voltage, high-contrast directional solid-state backscatter electron detector (DBS)
  • Integrated beam current measurement

Analytical Detectors

  • EDAX Octane Elite Super EDS
  • EDAX Velocity Ultra EBSD

Stage and Sample

High-precision, five-axis motorized stage with Piezo-driven XYR axis

  • XY range: 150 mm
  • Z range: 10 mm
  • Rotation: 360° (endless)
  • Tilt range: -38° to +60°
  • XY repeatability: 1 μm
  • Max sample height: Clearance 55 mm to eucentric point
  • Max sample weight at 0° tilt: 500 g (including sample holder)
  • Max sample size: 150 mm with full rotation
  • Compucentric rotation and tilt

Chamber

  • E- and I- beam coincidence point at analytical WD (4 mm SEM)
  • Ports: 21
  • Inside width: 379 mm
  • Integrated plasma cleaner
Location
Roberts Hall
Function
SEM
Contact
Neal Lewis