The Glue of Power: Why Europe’s Graphene Highway is the Real AI Revolution
From computation to connection — and the infrastructure that makes intelligence scale
Computation has outpaced communication. We have built digital giants — powerful chips, advanced models, entire AI systems — that are increasingly constrained by a simple physical limit: they cannot move data fast enough. In the world of AI supercomputers, a fast chip without a fast connection is like a Ferrari in a traffic jam. The bottleneck is no longer intelligence. It is bandwidth.
For decades, the semiconductor industry has relied on copper interconnects to move data between chips. But as processing speeds have increased, these connections have become the weakest link.
They generate heat.
They consume energy.
And they simply cannot keep up.
The result is a structural imbalance: chips that can compute faster than they can communicate.
As Daniel Schall explains:
“The bottleneck of AI isn’t the calculation; it’s the communication. We are removing the physical boundaries that have held the semiconductor industry back for decades.”
Daniel Schall
CEO, Black Semiconductor
This is the “copper ceiling” — the point at which traditional materials begin to limit technological progress.
Beyond the Chip
Black Semiconductor does not attempt to build a better processor. It targets something more fundamental.
The company develops graphene-based photonic interconnects — a technology that allows chips to communicate using light rather than electricity, directly on the chip itself.
At the heart of this approach lies graphene: a material just one atom thick, capable of converting electrical signals into optical ones at unprecedented speeds.
As Cédric Huyghebaert describes:
“Whatever you make on your chip below, suddenly it can talk two languages. It can compute electronically and communicate optically. That’s a game-changer.”
Cédric Huyghebaert
CTO, Black Semiconductor
This is not an incremental improvement. It is a shift in architecture.
From Components to Systems
The implications go beyond performance.
Modern AI is no longer about individual chips. It is about systems — thousands of processors working together across data centres, supercomputers and distributed networks. But systems are only as strong as their connections.
Black Semiconductor’s approach makes it possible for chips to operate not as isolated units, but as part of a unified whole.
As Daniel Schall notes:
“By integrating graphene photonics directly into CMOS production, we make it possible for thousands of chips to act as one single, massive system.”
Daniel Schall
CEO, Black Semiconductor
In this model, intelligence is no longer defined by the power of a single processor. It is defined by the efficiency of the network.
The Industrial Shift: From Lab to Fab
This vision is no longer theoretical.
With the opening of FabONE in Aachen in 2025, Black Semiconductor has moved from research to industrialisation. The facility is designed to integrate graphene photonics into standard semiconductor manufacturing processes, including a roadmap toward 300mm wafers — the global industry standard.
This matters. Because without compatibility with existing production systems, even the most advanced technologies remain confined to the lab.
What Black Semiconductor is building is not just a new material. It is a bridge between future architecture and present industry.
Interconnect Hegemony
This is where the geopolitical dimension emerges.
Much of the current AI race is framed around who builds the fastest chips — Nvidia, AMD or emerging challengers. But the real leverage may lie elsewhere.
In the connections between them.
If interconnect technology determines how efficiently chips can scale, then controlling that layer means controlling the architecture of entire systems.
This is what can be described as interconnect hegemony. Not dominance through products. But dominance through infrastructure.
And this is precisely why Europe is investing heavily in companies like Black Semiconductor, including through initiatives such as IPCEI.
Because if Europe cannot lead in compute, it may still lead in connectivity.
The Aachen–Delft Axis
Black Semiconductor’s position is also uniquely European.
In 2025, the company acquired Applied Nanolayers in Delft — a global leader in graphene production. This move secured control over a critical part of the value chain: the material itself.
What emerges is a cross-border system:
- material innovation in Delft
- industrial scaling in Aachen
- integration into a broader European semiconductor ecosystem
This is not a regional story. It is a model of distributed sovereignty — where no single location dominates, but the system as a whole becomes strategically relevant.
The Paradox of the Invisible Layer
Like Innatera, Black Semiconductor operates largely out of sight. It does not produce consumer products. It does not define user interfaces. It does not brand itself to end-users. And yet, its role may be foundational.
Because the more complex AI systems become, the more they depend on what connects them. The more essential the technology, the less visible it becomes.
This is the paradox of the interconnect layer. It disappears — precisely because everything depends on it.
A European System in the Making
Taken together, the companies in this series begin to form a pattern:
- Axelera designs intelligence
- Innatera embeds intelligence
- Smart Photonics manufactures infrastructure
- Black Semiconductor connects it all
This is no longer a collection of companies. It is an emerging system. And for the first time in decades, Europe is attempting to build that system end-to-end — from architecture to production to connectivity.
From Chips to Systems
The future of artificial intelligence will not be determined by the fastest chip. It will be determined by how effectively chips operate together — as networks, as systems, as infrastructure.
Black Semiconductor sits at the centre of that transition. Not by competing with the giants. But by redefining the rules they operate under.
Because in the end, power does not lie in isolated performance. It lies in connection.
This article is part of the Brainport Rising series. From design to sensing, from manufacturing to connectivity, the question becomes unavoidable: can Europe not only build technology — but orchestrate it as a system?
Caption
From metal to graphene: where traditional connections carry structure, next-generation interconnects aim to carry data at the speed of light.
Credit
Photo by Paolo Bendandi / Unsplash
