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NanoFab Tool: First Ten Angstroms FTA125 Contact Angle Goniometer

Photograph of the First Ten Angstroms FTA125 general purpose goniometer.
Photograph of the First Ten Angstroms FTA125 general purpose goniometer.

The First Ten Angstroms FTA125 is a general purpose goniometer that can measure the contact angle and surface tension of liquid droplets on a substrate's surface. The FTA125 provides automatic video based measurements on substrates ranging from 150 mm diameter wafers down to small pieces.

Specifications/Capabilities

  • Droplet volumes: 3 µL to 15 µL.
  • Contact angles measured: 0° to 180°.
  • Surface tension measurements using pendant drop shape analysis.

Usage Information

Supported Sample Sizes

  • Maximum wafer diameter: 150 mm (6 in).
  • Small pieces supported: Yes.
  • Maximum thickness: 2 mm.

Typical Applications

  • Measurement of the contact angle between a liquid droplet and a substrate surface.
  • Surface tension calculation.
  • Liquid droplet shape analysis.
Created May 21, 2014, Updated November 9, 2020