The customer requirement is for 99.99% pure ZS-Si as per the SQC announcement of 16th December 2019
Launch of Silicon Enrichment Project for Quantum Computing - Silicon Quantum Computing (sqc.com.au)
"A major challenge in the pursuit of CQC2T/SQC’s ‘silicon spin qubit’ approach (favoured over other methods because of its enormous potential in terms of scalability and reliability), is the availability of the key enabling material for the silicon QC processor chip – ‘Zero-Spin Silicon’ (ZS-Si). Natural silicon (Si) consists of 3 isotopes: 92.2% Si-28, 3.1% Si-30 (each with zero electron spin) and 4.7% Si-29 (with a spin state of ½. The presence of Si-29 in concentrations above 100ppm (0.01%) prevents effective QC performance, so ZS-Si must be produced by isotopic elimination of Si-29."
So, the fact that Silex is willing to guarantee supply of ZS-Si to 99.995% is exceeding the customer requirements and the fact that Silex achieved 99.998% in its first batch gives extreme confidence to both the Supplier and the Customer(s).
Looking forward to world domination of the ZS-Si market for Silex![]()
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