14 nm refers to the size of the chip manufacturing process, indicating that the minimum size of components such as transistors on the chip is 14 nm. This means that the chip can fit more transistors into a smaller space, providing greater integration and performance. 14nm chips have higher energy efficiency and lower power consumption compared to larger processes. It can be used to manufacture high-performance processors, memory and other integrated circuits for a wide range of applications in computers, mobile devices, the Internet of Things and artificial intelligence.