Micro-nano thin film equipment's working principle

The working principle of micro-nano film equipment primarily depends on the film deposition technology used. Here are the working principles of several common micro-nano film equipment:

Physical Vapor Deposition (PVD) Equipment: PVD equipment deposits thin films by bombarding a target material with high-energy particles, causing atoms or molecules to detach from the target surface and settle on the substrate. The working principle of this equipment is similar to an ion beam accelerator, with the primary energy transfer occurring through ion-atom collisions.

Chemical Vapor Deposition (CVD) Equipment: CVD equipment deposits materials by transporting precursor gases into a reaction chamber where they undergo chemical reactions on the substrate surface to form films. The working principle of this equipment is similar to a chemical reactor, controlling the temperature, flow rate, and pressure of the reaction gases in the reaction chamber to regulate the progress of the reaction process.

Sputtering Equipment: Sputtering equipment causes atoms or molecules from the target material to detach and deposit on the substrate surface by bombarding high-energy particles onto the target material surface, forming a thin film. The working principle of this equipment is similar to PVD, but it uses a different particle source, typically an inert gas ion beam.

Ion Beam Deposition Equipment: The ion beam deposition equipment forms thin films by accelerating ion beams and depositing them onto the substrate surface. The working principle of this equipment is similar to PVD, but it uses ion beams instead of high-energy particle beams. In summary, different micro-nano thin film equipment has different working principles, but they share the commonality of controlling the properties of the films, such as thickness, composition, and structure, by regulating parameters like the flow rate, energy, and reaction conditions of the deposited material.