The Ossila Four-Point Probe Plus (T2001B5) is a benchtop system for measuring the sheet resistance, resistivity and conductivity of thin films. This configuration is fitted with the sharp-tipped probe head, intended for hard materials such as silicon that naturally develop an insulating oxide layer. Its nickel-plated tungsten carbide probes, with a 0.08 mm tip diameter, can apply up to 197.43 gf to break through that layer and contact the material directly.
The Plus model has a built-in display, so readings can be taken at the press of a button without a PC, which suits work inside a glove box. It can also be run from a computer with the free Ossila Sheet Resistance Lite software, which saves data as .csv files and calculates geometrical correction factors.
The system covers sheet resistances from 100 mΩ/sq to 10 MΩ/sq. Positive and negative polarity measurements remove voltage offsets, while micrometer height control and a non-slip stage help achieve good electrical contact each time.
- Sheet resistance measurement of silicon and other materials with native insulating oxide layers.
- Resistivity and conductivity characterization of thin films when sample thickness is entered.
- Standalone measurements inside a glove box using the built-in display.
- Characterization of conductive coatings such as indium tin oxide.
| Brand | Ossila |
|---|---|
| CAS number | — |
| Molecular formula | — |
| Purity | — |
| Category | — |
| Pack sizes | — |
| Physical form | — |
| Storage | — |
- Product code: T2001B5
- Probe type: Sharp-tipped, nickel-plated tungsten carbide
- Tip diameter: 0.08 mm
- Maximum probe force: 197.43 gf
- Probe spacing: 1.6 mm (0.063")
- Sheet resistance range: 100 mΩ/sq – 10 MΩ/sq
- Applied voltage range: ±10 mV – ±10 V
- Voltage measurement precision: ±333 μV
- Current measurement ranges: ±20 μA – ±200 mA (5 ranges)
- Rectangular sample size: Long edge minimum: 6 mm (0.24"); Short edge maximum: 152.4 mm (6")
- Circular sample diameter: 6 mm – 152.4 mm (0.24" – 6.00")
- Maximum sample thickness: 5 mm (0.2")
- Dimensions (W x H x D): 145 mm x 150 mm x 240 mm
- Required screen firmware: Version 1.1.0 or newer
- Connectivity: USB 2.0, or Ethernet (requires DHCP)
—
—
