The 2nm cell phone chip has not yet been produced.
At present, the most advanced and mature chip process is the 5nm process. In March this year, Samsung was the first to adopt MBCFEF technology to replace the traditional FinFET technology. With the continuous efforts of Samsung, the chip made of the 3nm process is the first to appear. Compared with Samsung's innovative spirit, TSMC is more inclined to the improvement of traditional technology, and after studying many schemes, TSMC decided to continue to improve FinFET technology. Because the new process to carry out technology accumulation in order to achieve the yield for production. So the mass production chip is still the most advanced 5nm.
There are currently no 2-nanometer chip phones, and the best currently is 5 nanometers.