The manufacturing process of 4G RF chips is generally 28 nanometers (nm) or smaller. This is because 4G RF chips need to achieve high-speed data transmission, low power consumption and small size requirements, and the use of smaller manufacturing processes can improve the performance and integration of the chip, so as to meet these requirements. At present, some mainstream 4G RF chip manufacturers have begun to use smaller manufacturing processes, such as 14 nm and 10 nm, to further improve the performance and power performance of the chip.