What is EMI
Electromagnetic shielding material
According to electromagnetic shielding materials, there are three main categories:
- 1) Metals: directly select metal materials, such as beryllium copper, stainless steel, etc.;
- 2) Filling type: a certain proportion of conductive filler is added to the non-conductive substrate to make the material conductive. The substrate can be made of silica gel, plastic and other materials. The conductive filler can be metal sheet, metal powder, metal fiber or metalized fiber, etc. material;
- 3) Surface coatings and conductive coatings: Electroplating of the substrate. Common preparation methods include electroless gold plating, vacuum spraying, sputtering, metal spraying, and metal foil.