A target material, also known as a "target," is a material that is bombarded by high-energy particles. By using different target materials such as aluminum, copper, stainless steel, titanium, nickel, etc., different types of films can be obtained, such as superhard, wear-resistant, and corrosion-resistant alloy films. Typically, these films are formed by heating and evaporating in a vacuum. Thin films can be prepared through techniques such as magnetron sputtering, electron beam evaporation, and laser ablation.

2.High density. High-density target materials have advantages such as good conductivity, good thermal conductivity, and high strength. Using of high-density target materials for coating contributes to reduced sputtering power, high film deposition rate, lower cracking rate, and longer service life. Additionally, the sputtered thin films exhibit low resistivity and high transmittance.