Archer Materials Limited provide shareholders an update on the progress of its 12CQ chip development. Archer staff, working at a Sydney-based prototyping semiconductor foundry have recently developed a multi-scale wafer fabrication process for its quantum electronic devices. Wafer- based functional devices ("chips") are a fundamental requirement to the development of the 12 CQ chip technology, as Archer's innovation aims to realise mobile-compatible quantum processing that can easily be integrated into modern electronic devices.

The Company devised and applied methods that combine both UV optical lithography and electron-beam (E-beam) lithography, two of the most common semiconductor nanofabrication techniques, to facilitate the fabrication of potentially hundreds of advanced quantum electronic devices ("QEDs") on a single silicon wafer. This has greatly increased the yield of QEDs that are being developed and optimised to address Archer's technological goals of quantum control and readout in the 12CQ chip-based qubit system. Archer continues to address the sector scarcity of available and accessible facilities to perform the sophisticated quantum measurements required for 12CQ chip development.

Archer has now secured access to a local state-of-the-art cryogenic quantum device measurement laboratory and commenced technical programs of low-temperature (cryogenic) characterisation of QEDs. While the Company's technology remains focused on quantum devices that can operate at room-temperature, the cryogenic measurements are necessary to advance development of qubit readout and control mechanisms in Archer's chip-based quantum logic devices. The Company has made advances in optimising and validating the 12CQ qubit material coherence times.

Recently, the Archer team prepared, and characterised the coherence properties of over 150 separately synthesised qubit material batches. These materials will be used in the integration with hundreds of QEDs planned for on-chip measurements and testing throughout 2023. The resulting information will be used for characterising the performance of the qubit and evaluating its suitability for specific quantum technology and computing applications.