SMT, PCB Electronics Industry News

SMT, PCB Electronics Industry News


Sono-Tek to Highlight Cost Effective Alternative to Vapor Deposition, Producing Precision Anti-Reflection Coatings for Solar Glass Manufacturing

Aug 04, 2010

Milton, NY — Sono-Tek Corporation, a US-based company specializing in ultrasonic equipment used for alternative energy product manufacturing, will highlight its ultrasonic coating equipment, including a high-speed ultrasonic reciprocating coating system, HyperSonic, in Hall 4/Level 2/A45 at the 25th EU PVSEC in Valencia, Spain from 6-9 September 2010.

The HyperSonic system is designed to coat large area solar glass (up to 122 cm) with uniform, thin film anti-reflective coatings. Sono-Tek’s ultrasonic coating technology applies an optimum anti-reflective layer, maximizing light available for conversion and increasing transmission over the sun’s incident angles.

Traditional CVD and PVD for solar glass coatings are expensive, slow batch manufacturing processes. Pressure nozzles are capable of spraying anti-reflective suspensions; however, they have critical process limitations. Significant overspray and clogging, along with poor deposition control and inconsistent uniformity are major drawbacks to pressure nozzle technology. Sono-Tek’s ultrasonic nozzles are able to overcome these limitations with minimal bounce back and overspray, non-clogging performance, and uniform thin-film coatings. The benefits of ultrasonic coating include the ability to control thickness of deposition, drop size control (by varying nozzle frequency), and tight drop distribution, resulting in precise, uniform deposition. Ultrasonic nozzles are ideal for spraying nano-suspensions commonly used in anti-reflection coatings, as the continuous ultrasonic vibration of the nozzle deagglomerates particles and keeps them evenly suspended in the solution.

The HyperSonic system incorporates Sono-Tek’s precision ultrasonic atomizing nozzles with a robust, high-speed reciprocator (up to 2 meters/second) designed for industrial volume manufacturing. Featuring user-friendly control of system functions using Windows-based software, including programming and recipe storage, HyperSonic easily retrofits over existing conveyorized systems.

Sono-Tek’s ultrasonic technology has been proven successful in precision coating applications with some of the largest solar glass manufacturing companies worldwide. Well known for its non-clogging, low maintenance design, Sono-Tek ultrasonic nozzle systems are uniquely suited to provide the solar glass industry with high performance coatings for cost effective conversion efficiency.

For more information on the HyperSonic system or other ultrasonic coating technologies from Sono-Tek, stop by Hall 4/Level 2/A45 at EU PVSEC, or go to or e-mail

Sono-Tek is the world leader in the development and application of ultrasonic coating systems for electronics and advanced energy applications. Compared to conventional pressure spraying methods, the company’s ultrasonic nozzles do not clog, reduce liquid usage, waste, and environmental impact while achieving much more precise, uniform, thin film coatings. Sono-Tek is continually developing new applications for its unique technology, replacing wasteful practices in a world that is growing ever more environmentally sensitive. For more information, visit the company’s website at

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