The Invisible Industry
Why the Baltic States matter to Europe’s semiconductor future
No one looks at the Baltic skyline and thinks of semiconductors. When Europe’s technological ambitions are discussed, attention usually turns to the continent’s largest industrial clusters. Dresden. Grenoble. Eindhoven. Multi-billion-euro investments, advanced fabrication facilities and the race to strengthen Europe’s position in the global semiconductor industry dominate the conversation.
The Baltic States rarely appear in that picture. Yet Estonia, Latvia and Lithuania have quietly developed capabilities that are becoming increasingly important to Europe’s technological future. Not by competing with large semiconductor fabrication plants, but by mastering some of the most specialised and knowledge-intensive bottlenecks within the semiconductor value chain.
That raises an important question for European industrial policy.
As Europe invests heavily in expanding fabrication capacity, is sufficient attention also being given to the specialised technologies that make advanced semiconductor manufacturing possible?
🟦 The Physics Beneath the Silicon
To understand the Baltic States is to understand an industry that remains largely invisible to the public.
Modern semiconductor manufacturing is approaching unprecedented levels of precision. As chips become smaller and more complex, success depends not only on silicon itself, but increasingly on the ability to generate, control and measure light, materials and energy at nanometre scale.
Without ultrafast scientific lasers, advanced optical materials, photonic integrated circuits (PICs), thin-film technologies and precision optics, many of today’s semiconductor processes would simply not be possible. These technologies enable manufacturers to inspect wafers for microscopic defects, align optical systems with extraordinary precision and develop increasingly sophisticated communication technologies for data centres, healthcare, quantum systems and advanced manufacturing.
Technological sovereignty, therefore, may extend well beyond the fabrication plant itself. It increasingly depends on the specialised knowledge, materials and optical systems that enable advanced chip production in the first place.
🟦 Why Light Matters
For decades, progress in microelectronics was driven largely by making silicon transistors ever smaller. That trajectory is gradually approaching physical limits.
As computing performance continues to increase, light is becoming an increasingly important part of the semiconductor ecosystem. Photonic technologies enable faster inspection, more accurate measurements and lower-energy data transmission than many conventional electrical approaches. They are becoming essential for the next generation of semiconductor manufacturing, artificial intelligence infrastructure, optical communications and quantum technologies.
The future of microelectronics is therefore no longer shaped by silicon alone. Increasingly, it is also shaped by the physics of light.
🟦 Three Countries, Three Complementary Ecosystems
Rather than building identical ecosystems, each Baltic country has gradually developed its own area of expertise.
Lithuania has become internationally recognised for its laser industry. Companies such as Light Conversion and Ekspla have established leading positions in ultrafast laser technology, supplying scientific institutions and industrial customers around the world. More recently, initiatives around semiconductor assembly and packaging, including investments by Teltonika, demonstrate Lithuania’s ambition to strengthen its position within Europe’s semiconductor ecosystem.
Latvia has followed a different path. Around the Institute of Solid State Physics (ISSP UL) and Riga Technical University, researchers have built internationally respected expertise in optical materials, thin-film technologies and photonic integration. Supported by the Latvian Microchip Competence Centre under the EU Chips Act, the country is positioning itself as a specialised research and innovation hub rather than a location for large-scale fabrication.
Estonia contributes another layer altogether. Better known for its digital economy and software ecosystem, it is increasingly combining those strengths with advanced manufacturing technologies, sensors, materials research and industrial digitalisation. Rather than producing chips themselves, Estonian companies and research organisations increasingly support the software, automation and cybersecurity upon which modern semiconductor production depends.
Together, these ecosystems demonstrate that technological competitiveness does not necessarily emerge from scale alone. It can also be built through long-term scientific specialisation and complementary expertise.
🟦 A Different Model of Competitiveness
The Baltic trajectory was not built through the construction of mega-factories or the attraction of massive industrial investments.
Instead, it reflects decades of investment in physics, optics, engineering and specialised university research. After regaining independence, each country gradually transformed strong scientific traditions into focused innovation ecosystems. Rather than attempting to replicate Silicon Valley or compete directly with Asia’s largest semiconductor manufacturers, they concentrated on capabilities that were difficult to replace and increasingly valuable within global supply chains.
That strategy now appears remarkably well aligned with Europe’s broader ambitions under initiatives such as the EU Chips Act. As semiconductor production becomes more complex, resilience depends not only on where chips are manufactured, but also on who supplies the technologies that make advanced manufacturing possible.
The Baltic States therefore offer a broader lesson for European industrial policy.
Strategic importance is not determined solely by the size of a fabrication plant or the number of chips it produces. It can also emerge from mastering the specialised technologies that every advanced manufacturer depends upon.
Europe’s semiconductor future may ultimately depend not only on where chips are fabricated, but also on where the optics, materials and scientific expertise behind those chips continue to evolve.
Next in this series
Signal II — From Lasers to Lithography explores where Baltic photonics enters the global semiconductor value chain—and why technologies based on light are becoming indispensable to the future of microelectronics.
Image Credit
AI-generated illustration for Altair Media Europe
Caption
The Baltic Photonics Corridor.
While Europe’s largest semiconductor investments attract global attention, a quieter story is unfolding across the Baltic States. Through complementary expertise in photonics, optics, advanced materials and semiconductor technologies, Estonia, Latvia and Lithuania are helping build the invisible technological foundations that underpin Europe’s future competitiveness.
