Tungsten needle with a sharp tip is often used as a probe for applying to scanning tunneling microscope, micro-pattern gases detector, and leak microstructure.
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Wherein, scanning tunneling microscope, abbreviated as STM, is a new type of detection instrument with atomic resolution, which has been widely used in the fields of physics, chemistry, biology, materials science, and microelectronics science. Micro-pattern gases detector (MPGD) is a gas particle detector that has been used in many fields such as X-ray, gamma-ray and neutron imaging, astrophysics, solid physics, biomedicine, and nuclear medicine. Leak microstructure (LM) is a new type of microstructure gas detector. In other words, STM, MPGD and LM adopt tungsten needles as their probes. And that is because tungsten needle is made of high purity tungsten wire that is highly conductive and durable with high hardness, excellent mechanical properties, high elasticity and long shelf life.
