Tungsten has a variety of positive qualities, including: High melting point: Tungsten has the highest melting point of all metals, making it very heat-resistant. Hardness: Tungsten is one of the hardest metals and is highly resistant to scratches and wear. Electrical Conductivity: Tungsten has excellent electrical conductivity, making it useful in electrical and electronic applications. Density: Tungsten is a very dense metal, making it suitable for applications that require high-density materials. Chemical Stability: Tungsten is corrosion-resistant and has good chemical stability, making it suitable for a wide range of industrial applications. These qualities make tungsten valuable in a variety of applications, including the aerospace, mining, electrical and manufacturing industries.

Tungsten needles with pointed tips are mainly used for instrument probes. Like a digital four probe tester, this device is a multi-purpose comprehensive measurement device that utilizes the principle of four probe measurement.

This instrument follows the national standard for physical testing methods of monocrystalline silicon and refers to American A S. A specialized instrument designed according to the T.M standard for testing the electrical resistivity and block resistance (thin layer resistance) of semiconductor materials.

Suitable for testing the resistance performance of semiconductor materials in semiconductor material factories, semiconductor device factories, research institutions, and higher education institutions.