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December 3 2025 Modern production facilities are saturated with all kinds of electronics — from precision measurement systems to advanced automated lines. In such environments, invisible electromagnetic interference can disrupt even the most expensive equipment. That’s why EMI shielding in interfaces has become an essential element of any professional electronic design.
Today we can confidently say that our laboratory specializes in creating invisible protective “shields” that surround sensitive electronic components. Every EMI shielding layer we design is built on a deep understanding of electromagnetic field physics and real industrial requirements. This precise blend of theory and practice allows us to create electronics that resist interference — and separates an interface that fails at the worst possible moment from one that operates flawlessly for decades.
What is electromagnetic interference and why is it a problem?
Electromagnetic interference (EMI) refers to unwanted electrical signals that can disrupt the correct operation of electronic devices. In industrial settings, such interference can originate from electric motors, frequency inverters, welding equipment, radio systems, or even fluorescent lighting.
Delicate electronic circuits in touch interfaces or membrane keyboards may interpret these disturbances as actual control signals — resulting in accidental triggering, incorrect readings, or even total system lock-up.
The risk is especially high in medical applications, where even the smallest disturbance may have serious consequences. We frequently encounter projects where the ambient EMI levels exceed acceptable standards — and without proper shielding such devices simply could not function.
Modern EMI shielding technologies
Our EMI shielding solutions combine traditional engineering with cutting-edge material science. We do not use universal templates — every device produces its own interference pattern, requiring a tailored protection strategy. With technologies ranging from ultra-thin molecular coatings to multi-layer composite structures, we can match the shielding method precisely to each project.
Conductive layers on film substrates
A core technique involves ultra-thin conductive layers deposited on flexible films. Advanced metal-deposition methods allow us to create uniform shielding layers only a few micrometers thick.
These layers function as Faraday cages — capturing and redirecting electromagnetic energy away from sensitive circuits and providing stable protection across a wide frequency range.
Shielding meshes and hybrid composites
For applications requiring even higher protection, we use specialized shielding meshes integrated into composite layers. These hybrid materials combine metal conductivity with polymer flexibility — ideal for touch interfaces exposed to frequent mechanical deformation.
Conductive inks and specialty coatings
A breakthrough technology involves conductive inks that allow a shielding layer to be “printed” directly on the interface surface. These inks contain silver or copper nanoparticles suspended in a polymer matrix, forming a conductive path with resistance below 0.1 ohm per square after curing — enough to ensure effective shielding at minimal thickness.
Practical applications of EMI shielding
Medical and diagnostic interfaces
Touch panels and control interfaces must operate reliably in environments filled with strong electromagnetic fields generated by MRI scanners, defibrillators, or diathermy equipment. EMI shielding ensures stable operation and prevents false readings.
Automotive and onboard systems
Modern vehicles contain dozens of communicating systems. Touch displays must remain completely functional despite interference from alternators, ignition systems, and high-voltage battery packs — especially in electric and hybrid vehicles.
Industrial automation and PLC control systems
Factories are electromagnetic battlegrounds: inverters, high-power motors, welding systems and robots generate intense EMI. Interfaces in PLC systems require robust shielding, as even a brief signal disturbance may halt an entire production line.
Designing effective EMI shielding
Our process begins with a detailed analysis of the electromagnetic environment using advanced spectrum analyzers. Each source of interference is identified so we can select the optimal shielding technique.
Ensuring continuous conductivity is critical — even microscopic gaps can compromise the entire system. We use proprietary bonding techniques, conductive adhesives, and mechanical structures that maintain stable electrical contact throughout the interface lifetime.
EMI shielding as a Qwerty quality standard
For us, EMI shielding is not an add-on — it is an integral part of interface design. This ensures our products operate reliably in the most demanding electromagnetic conditions, providing long-term, failure-free performance.
