Materials and Processes for Micro & Nano Technologies

Characterizations

Contact angle measurement set-up

OCAH200 Dataphysics equipment
This system is suited for the measurement and analysis of :

• the static and dynamic contact angle according to the Sessile and Captive Drop method
• the drop shape according to the Pendant Drop method
• the wetting behaviour on solid surfaces
• the surface free energy of solids and their components
• the surface and interfacial tension out of the analysis of the drop shape

Main OCAH 200 technical data

Maximum sample size (L x W x H)	220 x 70 mm; 8"-Wafer on WT 200 M/E, 12"-Wafer on WT 300 M/E with OCA 20L
Size of sample stage	100 x 100 mm
Range of contact angle measurement	0...180o ; +- 0.1o measuring accuracy of the video system
Range of surface and interfacial tension	1 10-2 ... 2 103 mN/m; resolution: min. +- 0.05 mN/m
Optics	Six-fold zoom lens (0.7...4.5-fold magnification) with integrated fine focus (+- 6 mm) and high light transmitting capacity CCD-camera with a resolution of max. 768 x 576 pixels Field of view (FOV): 1.75 x 1.4...11.7 x 9 mm Optical distortion: < 0.05 %
Video system	High-performance image processing system with 132 MBytes/s data transfer rate (compatible to European standard CCIR and US standard RS-170) Up to 360images/s.
Measuring methods	Sessile and Captive Drop method Tilting Plate method Pendant Drop method Optical Wilhelmy Plate and Lamella method
Temperature measurement and range	2x Pt100 input for -10...400 oC (Pt100 optional), 0.1 K resolution; 1/3 DIN IEC 751 (+-0.03 %), class B
Size of device (L x W x H)	590 x 220 x 550 mm
Weight	18 kg
Power supply	100...240 VAC; 50...60 Hz; 55 VA

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