High-Quality Probes for Good Electrical Contact
Measure sheet resistance, resistivity, and conductivity with ease
Four-point probe heads for the Ossila Four-Point Probe that can be used to measure sheet resistance, resistivity, and conductivity.
The soft-tipped probe head features gold-coated probes to provide good electrical contact. These probes are rounded and spring loaded to reduce or eliminate damage to samples that can be caused by sharp probes whilst ensuring a uniform force of 60 grams is applied.
The sharped-tipped probe head is designed for materials with naturally forming oxide layers, with a tip diameter of 0.08 mm. The nickel-plated tungsten carbide tips can apply a maximum force of 197.43 gf to pierce the insulating layer for reliable sample measurements.
Please note: the gold plating on the soft-tipped probes can degrade in certain conditions, such as when used in humid environments, or with samples that are corrosive, abbrasive, acidic, etc, especially under electrical load. Gold can also diffuse into certain materials such as copper, aluminium, tin and silicon, especially at high temperatures (which can occur due to resistive heating at high current).
If you need a replacement probe head for the T2001A3 model, please contact us.
Specifications
Soft-tipped Probe Head
| Probe Spacing | 1.27 mm (0.05") |
|---|---|
| Probe Radius | 0.24 mm |
| Probe Stroke | 1.4 mm |
| Spring Force | 25 - 60 grams |
| Maximum Current | 2 A |
| Measurement Error | ±4% |
| Probe Material | Gold- and nickel-plated brass alloy |
| Connections | SMA |
Sharp-tipped Probe Head
| Probe Spacing | 1.6 mm (0.063") |
|---|---|
| Probe Tip Diameter | 0.08 mm |
| Probe Stroke* | 1.19 mm |
| Force at Maximum Travel | 197.43 gf |
| Spring Constant | 159.22 gf/mm |
| Probe Material | Nickel-plated tungsten carbide |
| Connections | SMA |
*Exceeding the maximum probe stroke may damage or destroy the substrate.
Please note: Your Ossila Four-Point Probe will require screen firmware version 1.1.0 or newer to use the sharp-tipped probe head. You can download the latest firmware from our website.
