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DMo WA Series

DM0-WA Series
Contact angle meter for measurements of disk-shaped substrates such as silicon wafer

The three models of the DMo-WA series are specially designed contact angle meters for measurements of disk-shaped substrates such as silicon wafer with a diameter of up to 300mm.

All models feature a 305mm diameter rotation table and a computer controlled dispenser which allow for automatic measurements of contact angle, advancing and receding angles, as well as analysis of surface free energy of solids.
Optional, a tilting stage for the measurement of roll-off angles is also available.

Each model combines the following features

  • Fast image capturing system with standard 400 fps at 640×480 resolution USB3.0 CMOS camera, max. 1000fps at 640×200 resolution
  • Automatic single dispenser system
  • Diameter 335mm 360° rotation sample stage with a maximum load capacity of 0.4kgs
  • Stage travel distance: x-axis: 150mm, y-axis: fixed, z-axis: fixed
  • Focusing aid with displayed index graph and value and brightness adjustment to achieve perfect focus
  • Movie converter to convert data images to MPEG-1 or AVI movie format
  • Determination of contact angles, droplet volume, residual droplet volume, sessile drop volume, height and radius of sessile drop
  • Measured results are displayed in a spreadsheet for easy reference and comparison, and saved in csv format for easy export to and manipulation in MS Excel
  • User-specified analysis report function, providing measurement results and parameters
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy
  • Automatic recognition of drop deposition
  • Live image display and droplet volume monitoring
  • Movie converter
  • Automatic dispenser with a set of 5 glass syringes and 5 SUS needles for precise adjustment of droplet volume and quick refilling and replacement of liquid samples
  • Fine adjustable stage in x- and z-axis for exact positioning and gentle deposition of droplets without distortion
  • Adjustable level of the body and stage
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

Hardware

  • Tilting stage for measurements of roll-off angles, incl. FAMAS software add-in [Sliding method] (except 902)
  • Add-on module [Dynamic sliding method] for measurement of roll-off speed and roll-off acceleration. Only in combination with tilting stage package (except 902)
  • Multi manual dispenser holder
  • Multi automatic dispenser system
  • Large capacity pump dispenser, incl. a 50μl liquid container
  • Surface free energy kit
  • Pendant drop kit (for standard & wide view)
  • Droplet calibration standard (for wide 1 view)
  • Pendant drop kit (for standard & wide view)
  • Kit for captive-bubble-measurements
  • Pendant drop calibration standard (for standard view)
  • Pendant drop calibration standard (for wide 1 and wide 2 view)
  • Surface cleanliness and homogeneity after cleaning processes (typically for removal of organic contaminations)
  • Surface properties such as wettability and adhesion of modified surfaces and thin film coatings
  • Wetting and dewetting properties in immersion lithography processes using the sliding method with external tilting stage and/or using the extension/contraction method

DMo-WA Series

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