Semiconductor Thin-Film Electron-Beam Evaporation Coater

In an ultra-high vacuum environment, the electron gun generates a high-energy electron beam that is precisely focused and deflected by electromagnetic lenses to bombard the target material housed in a water-cooled crucible, converting kinetic energy into localized high temperatures and causing the target material to undergo instantaneous evaporation or sublimation. The resulting gaseous atoms and molecules then travel in straight lines through the vacuum and deposit on the cold substrate surface, where they condense, nucleate, and grow to form a continuous, dense thin film.

Its characteristics and advantages:
1. High film purity: Evaporation deposition under high-vacuum conditions prevents oxidation and impurity contamination, resulting in exceptionally clean films that meet the stringent requirements of the semiconductor industry.
2. Excellent film-forming quality: The electron beam features concentrated energy, resulting in a dense, highly adherent, and uniformly coated film with few defects and high stability.
3. Wide material compatibility: capable of vapor-depositing a variety of materials, including metals, dielectrics, and oxides, making it suitable for the fabrication of semiconductor electrodes, insulating layers, and passivation layers.
4. Precise film-thickness control: Enables nanometer-level thickness precision with excellent repeatability, making it ideal for the fabrication of high-precision micro- and nano-devices.
5. Clean and environmentally friendly process: no waste liquids or exhaust gases, minimal thermal impact, and low damage to the substrate, making it ideal for processing sensitive semiconductor materials and precision devices.