CSIC researchers at IMB-CNM have developed a new method of manufacturing semiconductor Qubits using block copolymer-based technologies. The process is more accessible and economical, while maintaining the same advantages as other Qubits that are manufactured at a higher cost.
A qubit, or quantum bit, is the basic unit of information used to encode data in quantum computing. It is the equivalent of the traditional bit used by classical computers.
A qubit, or quantum bit, is the basic unit of information used to encode data in quantum computing. It is the equivalent of the traditional bit used by classical computers. However, while the bit can only have a value of 1 or 0, qbits can be simultaneously in a superposition of states, or interleaved. They allow very complex computations to be performed much faster and more efficiently than traditional computing.
However, their development faces significant manufacturing challenges, in particular in achieving high density, resolution, uniformity and alignment control with scalable manufacturing processes.
Current fabrication methods, such as electron beam lithography (EBL) or extreme ultraviolet lithography (EUV), struggle to achieve the required precision on an industrial scale while maintaining cost-effectiveness.
Scientists at IMB-CNM have developed a new method of manufacturing semiconductor Qubits using block copolymer-based technologies. They have done so using advanced lithography and manufacturing solutions to ensure maximum density and uniformity in industrial production. The result offers high precision, scalability and full alignment control.
European priority patent
The process, validated in the laboratory, has been patented at European level. The patent addresses current market limitations and enables high qubit density through patterning capability below 10 nanometres, and self-alignment capability, ensuring precise qubit control and reproducibility. The processing is CMOS-compatible, which facilitates integration into the existing semiconductor manufacturing pilot.
This more accessible and cost-effective process retains the same advantages as other Qubits that are manufactured at higher cost. Competitive advantages include scalability and integration of high-density qubits, and self-aligned structures.
Contact:
Isabel Gavilanes
Vicepresidencia de Innovación
y Transferencia -CSIC