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USI Advances Adoption of Package Level EMI Shielding with Advanced Silver Conformal Coating

Haverhill, MA – Haverhill, MA, USA, September 25, 2018 – Ultrasonic Systems, Inc. (USI), a leader in high performance coating application equipment, is announcing the sale of several of its PRISM ultra-Thin Coating Application Technology (tCAT) spray coating platforms for use in package level electromagnetic interference (EMI) shielding using advanced silver conformal coatings.

Since first announcing this capability, USI has shipped multiple systems to semiconductor manufacturers in China, Taiwan, and the United States to support manufacturing using advanced silver materials from major providers. Unlike sputtering-based coating equipment, this new process has proven to have excellent EMI shielding effectiveness (1-10 µm), improved design flexibility, and lower overall cost of operations and ownership.

“The use of silver coatings for package level EMI shielding has rapidly moved from the lab to the production floor,” said Stuart Erickson, President at USI. “Smartphones and other smart devices have increasingly-compact form factors that demand higher performing EMI shield effectiveness. Our PRISM systems with our tCAT technology have proven to outperform other coating systems when measured against our customer’s technical and business objectives.”

Key to the acceptance of these new silver EMI materials was the superior coating capabilities of USI’s core technology called tCAT. This proprietary nozzle-less ultra-Thin Coating Application Technology is used for thin, uniform application of a wide variety of coatings from pure solutions to high-solids suspensions and slurries. USI’s tCAT utilizes “nozzle-less” ultrasonic spray technology combined with a precision metering pump liquid delivery system, which is part of a coating system platform with a motion and positioning system for the spray head, and a transport system for the substrates to be coated.

Electromagnetic Interference (EMI) is a process by which disruptive electromagnetic energy is transmitted from one electronic device to another via radiated or conducted paths, or both. In electronic components, devices, and systems, EMI can adversely affect the performance of today’s faster, smaller, electronic devices that contain digital circuits. EMI shielding helps designers obtain the highest possible operating and processing speeds from the smallest possible physical package without performance-degrading interference.

About Ultrasonic Systems, Inc.
Ultrasonic Systems, Inc. (USI) manufactures high-performance spray coating equipment based on its patented ultra-Thin Coating Application Technology (tCAT) spray coating platforms. USI’s products deliver a superior alternative to conventional air-atomizing or ultrasonic spray nozzle solutions for the solar, semiconductor, fuel cell, medical, and electronics assembly markets. With thousands of installations across many industries worldwide, our team of technical experts is committed to providing the best technical, product, and application support available.