Barkhausen Noise

Barkhausen Noise SURAGUS also develops metrology systems based on barkhausen noise. Please contact us for further information about the SURAGUS Barkhausen One at sales@suragus.com. Contact Sales Sensor Capabilities Sheet Resistance [0.001 – 1,000  Ohm/sq] Metal Layer Thickness [1 nm – 2 mm] Resistivity [in accordance with sheet resistance] Supported Substrates Wafer, Glass, etc. with 150 […]

Four Point Probe Measurement

Four Point Probe Measurement Method The four point method is also known as four point measurement. It is a method to measure the sheet resistance. The sheet resistance is the electrical resistance of a surface or a layer. It is defined by the resistivity of the layer divided by its thickness. The most common method […]

Eddy Current

Quality Assurance using Eddy Current Testing The eddy current testing method utilizes local conductivity variations for the characterization of quality characteristics such as thickness, sheet resistance, material homogeneity or other physical changes in the sample of investigation. The complex eddy current signal contains various information about the test material, which can be separated in many […]