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Scaling Up Silicon 28 For Mainstream Silicon Qubit Chips

By Brian Wang

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NextBigFuture
Aug 26, 2025
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Transitioning to mass production of ²⁸Si-based spin qubit chips involves leveraging existing semiconductor infrastructure (e.g., CMOS fabs from Intel or TSMC) while addressing isotope-specific challenges.

Key steps include:

Scale Up Enrichment Capacity: Build additional facilities using methods like ASP (gaseous diffusion with flow directors), quantum en…

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