Yes, 7nm chips are already in mass production. At present, TSMC, Intel, Samsung and other companies have begun to produce chips with a 7-nanometer process. Compared to previous 14nm or even 10nm processes, 7nm chips have higher integration and lower power consumption, which can provide better performance and longer battery life. Although the cost of manufacturing 7nm chips is very high, due to the growing market demand, this trend will continue.