01 Ultra-low leakage design for accurate weak signal capture

The system adopts a high-insulation structure and low-noise wiring scheme, achieving a leakage current of less than 100 fA across four probe channels. It effectively suppresses background noise and stray currents, meeting the demands of high-sensitivity electrical tests on high-resistance materials, 2D materials, and micro/nano devices, ensuring reliable experimental data.

Equipped with triaxial probes, the system ensures stable signal transmission and strong anti-interference capability, with a wide positioning range. It also supports independent XYZ three-axis adjustment for each probe, allowing flexible adaptation to samples of different sizes and multi-point testing, with precise positioning and convenient operation.

The device is equipped with a dedicated gas flow module, featuring an optimized gas path design to ensure uniform and sufficient gas flow over the sample surface, improving consistency in atmosphere-dependent experiments.

Main Technical Parameters:

1.Heating method: Resistive heating

2.Temperature control range: RT ~ 600°C

3.Temperature stability: ±0.1°C

4.Maximum heating rate: 50°C/min (at RT); natural cooling

5.Sample stage: Silver; 23 mm × 23 mm

6.Optical path: Reflection

7.Window material: JGS2 quartz glass (transmission wavelength range: 220 nm – 2500 nm); detachable module allowing replacement with different window materials based on experimental needs

8.Window dimensions: φ25 mm × 1 mm

9.Distance from top surface of window to top surface of sample stage (h): 7 mm

10.Probes: 4 coaxial probes

11.Probe connector: Triaxial BNC

12.Sample stage potential: Electrically floating / grounded

13.Chamber: Controlled atmosphere