Next-gen solutions in progress
Big leaps start with small steps. Incremental innovation lays the foundation for a radical shift in what our micro cables can do.
Our first step is the development of ultra-thin shielded cables that tackle EMI and mechanical stiffness, while enabling stronger signal integrity and long-term flexibility. This opens the door to next-generation compact designs and system-level integration.
What was once limited by material constraints is now made possible with new conductive coating technology.
Redefining RIC Shielding with es-Linum Coating Innovation
As the demand for high-precision biometric sensing in the ear canal grows, so does the need to effectively filter out electromagnetic noise. In RF-dense environments, unshielded cables in Receiver-in-Canal (RIC) devices are vulnerable to interference that can degrade performance. Shielded cables provide an effective solution for reducing noise and ensuring reliable signal transmission.
Our Chief Technologist, Carit Laursen, reflects:
“Eight years ago, we explored shielding options for microphones in our Linum cables, but the materials and technology just weren’t there.”
Shielded cables are well established, but a breakthrough in conductive coating elevates the es-Linum platform into a new class. We’re redefining the standard with a cable that’s dramatically thinner than traditional foil or braid-shielded designs. es-Linum shielded features a self-restoring bend that improves long-term flexibility and mechanical durability.
es-Linum® shielded is:
- Ultra-compact with reliable EMI protection
A proprietary conductive coating enables shielding without traditional foil or braid, making the cable significantly thinner and more flexible.
- Built for durability in dynamic use
“One of the key challenges is maintaining consistent electrical connection despite repeated bending,” Carit explains. Our solution uses a self-restoring conductive layer that resists metal fatigue and extends lifespan.
- Superior signal performance
Controlled impedance reduces common-mode interference, while the shield acts as a passive RF filter, attenuating distortion and crosstalk.
- Ergonomic and customisable
Our design supports customer-specific length configurations, produced in-house with consistent performance and high reproducibility.
Shielded cables, in our micro world, may be incremental innovation, but at estron, they’re the foundation for something more radical.
From Shielding to System Integration: What’s Next?
“With this new conductive layer, we see real possibilities,” Carit explains.
The groundwork is already in place, pointing to a new role for the cable in next generation hearing systems.
“The shielded cable enables more advanced functionality in future designs,” Carit continues. “It opens doors to new capabilities in RIC systems. This is about more than protection, it’s about integration and enabling tomorrow’s hearing technology.”
We’re keen to collaborate on this journey. Want to learn more about implementing shielded cables in hearing aid solutions, or shaping the next stage of integration?
Get in touch for a tailored EMC solution and a technical deep dive. And don’t miss what we’ll share this October at EUHA.