Consumers take it for granted that their mobile phones and laptops will get faster and more powerful with each generation. But current techniques are reaching their limit. The solution could be a technique called extreme-ultraviolet (EUV) lithography, which uses very-short-wavelength light to create features that are four times finer than those on current microchips. But overcoming the chemistry, physics and engineering challenges involved is costing the industry billions of dollars.
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