Etching assisted silicon nitride ceramic copper-clad substrate

What silicon nitride? Silicon nitride is an inorganic substance with high hardness. Because of its lubricity, wear resistance and oxidation resistance at high temperature, it can be heated to 1000℃ in air and will not burst when it is cooled and reheated. Because of its high thermal conductivity, high bending strength, high temperature resistance, wear resistance and corrosion resistance, silicon nitride has gradually become the main material in semiconductor devices, and the ceramic copper-clad substrate produced by silicon nitride inherits the advantages of silicon nitride, and is also widely used in high-speed rail, electric vehicles and other fields.

Silicon nitride ceramic copper brake pads have been widely used in the automotive field. Traditional brake pads are extremely poor in metal wear resistance and overheating in materials, but they have strong advantages in wear resistance and heat resistance. Therefore, silicon nitride ceramic copper brake pads are born. Besides being used as brake pads, silicon nitride ceramic copper can also be used as printed circuit boards in automobiles, and silicon nitride ceramics can also be used to manufacture mechanical components such as bearings, gas turbine blades, mechanical sealing rings and permanent molds.

Silicon nitride ceramic copper-clad substrate, also known as ceramic copper, can be processed by etching. The etching of ceramic copper can make the surface smooth, burr-free, and the half-carved depth uneven, which ensures the characteristics of the product.