Spray Coating of Photoresists

Spray Coating of Photoresists, a highly sophisticated and versatile technique in the realm of thin film deposition, refers to the intricate process of creating a resist film. It involves the propulsion of millions of minute resist droplets, each typically sized in the micrometer range, towards the substrate. These droplets, akin to a microscopic army, travel through the air or gas medium, converging to form a cohesive resist film.

The ultrasonic coating method, a subset of spray coating, offers notable advantages. In contrast to the traditional spin coating approach, it enables, at least theoretically, a reduced consumption of resist material. This not only translates to cost savings but also greater material efficiency. However, the most prominent edge it holds lies in its ability to coat substrates of diverse and complex geometries. Be it substrates with irregular shapes or textured surfaces, spray coating can achieve a level of film thickness homogeneity and edge coverage that spin coating simply cannot match. This makes it an invaluable tool in modern manufacturing processes where precision and adaptability are key, such as in the production of microelectronics, optical devices, and advanced coatings for various industrial applications.

About Cheersonic

Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.

Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.

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