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Advantages of ultrasonic spraying for photoresist

Nov 18, 2020

Photoresist Coating

Ultrasonic spraying technology is used for semiconductor photoresist coating. Compared with traditional coating processes such as spin coating and dip coating, it has the advantages of high uniformity, good encapsulation of microstructures, and controllable coating area. In the past 10 years, it has been fully demonstrated that the 3D microstructure surface photoresist coating using ultrasonic spraying technology, the prepared photoresist coating is significantly higher than the traditional spin coating in terms of microstructure wrapping and uniformity Craft.

The ultrasonic spraying system can precisely control the flow rate, coating speed and deposition volume. Low-speed spray shaping defines atomized spray as a precise and controllable pattern to avoid excessive spray when producing a very thin and uniform layer. The ultrasonic spray system can control the thickness from sub-micron to more than 100 microns, and can coat any shape or size.

http://www.cheersonic-liquid.cn/en/photoresist-coating/

Application

Ultrasonic spraying system can be used for surface coating of flat and 3D structural substrates including silicon wafers, glass, ceramics, metals and other materials. Typical photoresist coating applications include wafers, MEMs, lenses, microfluidic chips, filters and many more.

Advantages of ultrasonic spraying for photoresist:

• High uniformity and uniformity
• Non-contact spraying
• Micro-flow spraying, multiple liquid feeding schemes
• High speed control accuracy
• High liquid utilization
• High flexibility in chemical and coating performance.
• Non-clogging atomized spray.
• High transmission efficiency and minimal waste.
• Highly repeatable mature spraying process.


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.

The Company’s 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.

Cheersonic’s growth strategy is focused on leveraging its innovative technologies, proprietary know-how, unique talent and experience, and global reach to further develop thin film coating technologies that enable better outcomes for its customers’ products and processes. For further information, visit https://www.cheersonic-liquid.cn/en/.

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