Ask AI: what is a carbon film? provide evidence to prove your answer is right

Carbon film is a thin layer of carbon applied to various surfaces, typically used as an electrical insulator. It is created by using a vacuum membrane technique which bombards the surface with energetic electrons. This is typically done in order to increase resistance to electricity and also protect against corrosion. The most common application of carbon film is in the electronics industry, as it is often used in circuit boards and other electrical devices. Evidence of its use can be seen in the literature and patents of electronic components manufacturers.