Tungsten, as a metal material with strong hardness and high temperature resistance, is often used in filament, electrode, thermocouple or probe needle, etc., but tungsten itself has the problems of brittle and low plasticity, which greatly reduces its service life in the process of use. In order to reduce the brittleness of tungsten and improve its plasticity, the traditional method is to add rare metals to tungsten to form tungsten base alloy to increase its properties.
Adding rhenium to tungsten can cause "rhenium plasticization effect", which greatly increases the plasticity of tungsten. Rhenium-tungsten alloy has a series of excellent properties, such as high melting point, high strength, high hardness, high plasticity, high recrystallization temperature, high resistivity, low vapor pressure, low electron escape work and low plastic brittle transition temperature.
The tip of the rhenium tungsten probe is processed by special technology. The needle cone has high precision, high strength and elastic modulus. The product is more wear-resistant and corrosion resistant, with smooth surface and no damage.
Rhenium tungsten probes have different tip types, that is, different tip shapes, for example, tip with platform, tip with full tip and tip with arc; The diameter of the probe is 0.05-1.2mm, the length is 15-300mm, and the tip is 0.08-100μm.
Rhenium tungsten probes are mainly used in semiconductor, LED, LCD and other industries. They are used in probe cards, probe stations, chip testing, wafer testing and LED chip testing.
