Apple is said to be adopting the latest-generation fabrication process from TSMC as soon as the second half of 2022. Nikkei reports that both Apple and Intel are currently testing chip designs using a 3-nanometer fabrication process.
The publication indicates that the first 3-nm Apple chip will likely arrive in an iPad (presumably a Pro model). The iPhone 14 will use a larger 4-nm SoC due to yield rates / scheduling lead times. This would still be an improvement over the 5-nm chip design seen in the iPhone 12 and expected to feature in the iPhone 13 later this year.
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