Refers to the chip manufacturing process.
Chip 7 nm 14 nm refers to the chip process. The chip is an electronic circuit processed by high-precision lithography machine, etching machine and other photoelectric equipment, which is covered with a large number of very small silicon transistors, and the gate width of the transistor is expressed in nanometers, so it is usually said that 7 nanometers 14 nanometers refers to the gate width of the chip, that is, the chip process.