McGill University

Atomic Force Microscope Laboratory

Department of Earth and Planetary Sciences



      Instrumentation

     

               Dimension 3100 Atomic Force Microscope         

  The Dimension 3100 Scanning Probe Microscope (SPM) utilizes automated atomic force microscopy (AFM) and scanning tunneling microscopy (STM) techniques to measure surface characteristics for semiconductor wafers, lithography masks, magnetic media, CDs/DVDs, biomaterials, optics, and other samples up to 200 mm in diameter. Its laser spot alignment system and the ability to change scanning techniques without tools guarantee flexibility, ease of use, and high product throughput.

 

Specifications

Stage

  •       Inspectable Area:                        120mm × 100mm × 12mm

  •       Resolution:                                  2μm

  •       Unidirectional repeatability:          3μm typical, 10μm maximum         

  •       Bidirectional repeatability:            4μm for x-axis, 6μm typical for point                                                   to point motion

  •       Rotation:                                      360˚

Optical Microscope

  •       A computer-controlled illuminator for easier optical focusing and zooming

  •       410-1845 magnification range corresponding field of view of 180-810 μm

  •       Video image capture capability

  •       1.5 μm resolution   

 Scanner

  •       Travel (Approx. scan size):           X-axis 90μm                                                               Y-axis 90μm                                                              Z-axis 6μm

  •       Electronic Resolution:                  16 bit (all axes)

  •       Accuracy:                          <1% Typ., 2% max of selected scan  size                                              Orthogonality: <2 degrees                                                                               Unconrrected Z Bow: 50nm @ 90μm scan size                                                                           2μm @ 10 μm scan size

Scan Modes 

  •       Contact Mode

  •       Tapping Mode

  •       Phasing Imaging

  •       Scanning Tunneling Microscopy(STM)

  •       Lateral Force Mode(LFM)

  •       Force Imaging

  •       Interleave Scanning and Lift Mode

  •       Magnetic Force Imaging

  •       Electric Force Imaging

  •       Scanning Thermal Microscopy(SThM)

  •       Tunneling Atomic Force Microscopy(TUNA)

 

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