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Four-point probe sheet resistance
Four-point probe sheet resistance is a standard method for measuring the electrical properties of thin films and conductive materials, expressed in ohms per square (Ω/□). The technique uses four equally spaced probes, where current is applied through the outer probes and the voltage is measured across the inner probes, minimizing errors from contact resistance and ensuring accurate, repeatable results. It is widely used in semiconductor manufacturing, electronics, and materials science for quality control and process monitoring, offering a simple, non-destructive, and reliable way to evaluate surface conductivity.
Upgrade your testing setup with MSE PRO Four-point cables designed for simplicity, flexibility, and cost efficiency. Unlike traditional four point probe instruments that require expensive, dedicated equipment, these cables allow you to perform accurate sheet resistance measurements using a standard four-terminal (Kelvin) multimeter. Simply connect the cables to your probe head and compatible multimeter, and you’re ready to measure—no complex systems or high investment required.
Ideal for laboratories, production floors, and educational environments, these cables provide a practical solution for users who need reliable results without the cost and bulk of a full instrument. Their straightforward setup reduces training time, while the compact design makes them easy to integrate into existing workflows. Whether for routine checks or research applications, Four Point Probe Cables deliver an accessible and economical approach to precise electrical measurements.
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Frequently Asked Questions
Which four-point probe cable do I need for my sample size?
Choose by the area of the samples you will measure. The cable for samples larger than 5 mm² suits small coupons, the cable for samples larger than 2 cm² suits typical electrode and film pieces, and the cable for samples larger than 5 cm² suits bigger sheets.
What does the cable holder do?
The cable holder keeps the four-point probe cable and probe head steady over the sample during a measurement. It is listed for the BR0068418 and BR0068419 cables, so check the part numbers on your cable before ordering.
What can I measure with a sheet resistance 4 point probe?
Typical samples include conductive thin films, ITO and FTO glass, coated battery electrodes and metal foils. The result is sheet resistance in ohms per square, and multiplying by film thickness gives resistivity. Pick the cable that fits your sample size, such as the 5 cm² version.
What do I connect the probe cable to?
The cable connects to an instrument that can supply current and read voltage, such as a source meter, battery tester or electrochemical workstation. Check the connector type and your instrument's channels against the product page of the 2 cm² cable before ordering.
How do I order several cables for a lab?
List the cable sizes and quantities, plus any cable holders, on the bulk order request form. If you are unsure which size fits your samples, describe them on the quote request page.