Taiwan Semiconductor Manufacturing Company and Samsung.
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There are only two manufacturers of 3nm chips, one is Samsung and the other is TSMC. At present, the highest global chip manufacturing process can be mass-produced is 4 nm, and the highest process to be mass-produced is 3 nm. And TSMC and Samsung are currently the world's top two chip manufacturers. In third place is Intel, whose chips are made at 10 nanometers. Although the manufacturing process of TSMC and Samsung is somewhat false, only TSMC and Samsung can reach 3 nanometers at present.