Extreme Ultraviolet lithography for computer chips have been critical to letting us efficiently get better than 14 nanometer computer chips. Deep ultraviolet lithography were used for 14 nanometer feature sizes. China chip companies do not have access to EUV lithography equipment and have pushed deep ultraviolet lithography to 7 nanometer feature sizes. Metalenses are 10,000 ...

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Link :
https://www.nextbigfuture.com/2024/03/ultraviolet-metalenses-mass-produced-will-enable-future-ai-chips.html