In license used the wording “mature technologies”. These are the 28-nm process technology and older. Huawei’s subsidiary HiSilicon first used this technology in the Kirin 620 platform in 2015.
Of course, modern smartphones require more advanced technology. The latest flagship chip from Huawei uses a 5nm process technology. It is impossible to imagine the use of 28 nm technology in a smartphone that meets modern requirements.
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