KYOWA DMo-WA Series for Wafer and Disc-Shaped Samples

DMo-WA Series, Designed for wafer and disc-shaped samples

The three models of the DMo-WA series are specially designed contact angle meters for measurements of disk-shaped substrates such as silicon wafers with a diameter of up to 300mm.
All models feature a 305mm diameter 360º 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 640x480 resolution USB3.0 CMOS camera, max. 2700fps at 640x64 resolution
• Automatic single dispenser system
• Diameter 335mm 360º 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 the 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 5º, 60º, and 108º for periodic inspection of measurement accuracy

The following table describes the differences between the measuring process of each model

• ▲ manual ● automatic

Features

• 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 5º, 60º, and 108º for periodic inspection of measurement accuracy

Options

• Tilting stage for measurements of roll-off angles, incl. FAMAS software add-in [Sliding method] (except 902)
• Add-on module [Dynamic sliding method] to measure roll-off speed and roll-off acceleration. Only in combination with the 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)

Applications

• 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

Specifications