KN Solvro

JOURNEY THROUGH THESilicon World

Wrocław Tech and TU Graz students explore the world of semiconductors in a Unite! Seed Fund project that combines education, hands-on experience and international exchange.

Start the Journey

It starts with sand...

Common sand contains a lot of silicon dioxide (SiO₂). But it's not pure enough for electronics. The journey begins by extracting and refining silicon from quartz sand through a high-temperature chemical process - a requirement for creating reliable microchips.

SiO₂
Silicon is purified to 99.9999999%
01

Purifying the Sand

Silicon sand contains a lot of silicon dioxide (SiO₂). The journey begins by extracting and refining silicon from quartz sand through a high-temperature process - a requirement for creating reliable microchips. Silicon is purified to 99.9999999% (nine nines) purity.

INGOT
Ingot height up to 2m
02

Growing a Silicon Ingot

The ultra-pure silicon is melted and grown into a single large crystal using a process called the Czochralski method. A seed is shaped into a cylindrical ingot - a perfect silicon structure that forms the base for every modern microchip.

< 1nm surface roughness
03

Wafer Slicing and Polishing

The silicon ingot is sliced into thin wafers, like microscopic pancakes. Each wafer is polished to atomic-level smoothness, creating a flat surface ready for circuit printing. These wafers are now ready for microchip design.

Billions of transistors per chip
04

Circuit Printing

Photolithography transfers the circuit pattern onto the wafer using light. Layer by layer, transistors are built at nanometer scale - smaller than a virus. A single modern chip contains billions of transistors.

CPU
From sand to chip
05

Packaging & Testing

Each chip is cut from the wafer, tested for defects, and packaged into the familiar black chips we know. From raw sand to finished processor - the journey of silicon is complete.

The EU Chips Act

In 2023, the European Union passed the EU Chips Act - a landmark regulation to secure Europe's semiconductor supply chain, reduce strategic dependencies, and make Europe a global leader in chip technology by 2030.

Our project embraced this ambition directly - bringing engineering students face-to-face with chip fabs, clean rooms, and research labs to broaden awareness of semiconductors as a strategic industry.

€43B

in public and private investment mobilised by 2030

20%

target share of global chip production - up from ~9% today

2030

target year for doubling Europe's share of world chip output

~9%

Europe's current share of global semiconductor production

Source: European Commission — EU Chips Act, 2023

The Exchange

Two student communities. Two countries. One shared passion for technology.

May 2025

Graz, Austria

Members of KN Solvro visited Graz - the Silicon Valley of Europe. They toured ams OSRAM's production facilities including a Clean Room, explored Silicon Austria Labs' cutting-edge research, and visited laboratories at Technische Universität Graz. The Austrian students from BEST Graz ensured the visit combined technical depth with cultural warmth.

ams OSRAMSilicon Austria LabsTU Graz

October 2025

Wrocław, Poland

TU Graz students visited Wrocław, hosted by KN Solvro. They explored XTPL's nanoprinting technology, Balluff's sensor solutions, and the Wrocław Centre for Networking and Supercomputing (WCSS). The programme also included a tour of the Faculty of Electronics at Wrocław Tech, including the specialist Clean Room, organized with the NaMi student research group.

XTPLBalluffWCSSPWrNaMi