Black Semiconductor GmbH

Black Semiconductor is a fast-growing semiconductor and deep-tech startup based in Aachen, Germany, focused on transforming how chips communicate and connect. The company’s core proposition is integrating high-speed graphene photonics directly onto electronic chips, enabling compute with electricity and communication with photons. In practice, this approach targets the bandwidth and energy bottlenecks created by standard electric interconnects - interconnects that are described as too slow, generating too much heat, wasting energy, and limiting bandwidth over short distances.

Black Semiconductor positions its work around pioneering chip-to-chip connectivity by successfully integrating photonics and electronics on the same wafer. Its platform is built on graphene as an enabling material to create ultra-fast, energy-efficient, and scalable ‘chip fabrics’ that connect thousands of chips to interact ‘as if they were one.’ The company also emphasizes manufacturing integration, describing CMOS-compatible processing and stating that its graphene approach supports BEOL integration and mass-production scalability. Black Semiconductor is led by co-founders Daniel Schall (Co-founder & CEO) and Sebastian Schall (Co-founder & CFO).