plasma sputtering

Plasma sputtering is a process used to deposit thin films of material onto surfaces. It involves creating a plasma—a superheated, ionized gas—by applying an electric field. In this plasma, energetic ions collide with a target material, knocking off atoms or molecules (called "sputtering"). These ejected particles then travel through the vacuum and settle onto a substrate, forming a uniform coating. This technique is widely used in electronics, optics, and coatings because it allows precise control over the material's thickness and composition.