Printed circuit boards are widely used in communication, computer and peripheral, consumer electronics, IC packaging, industrial/medical, automotive electronics and military/aerospace and other major fields.According to Prismark's statistics, in 2018, global communications, computers, consumer electronics, automotive electronics, industrial control, military/aerospace and medical devices industries The market share of PCB application is 33.4%, 29.4%, 15.1%, 10.1%, 5.1%, 4.7% and 2.2%, respectively.The PCB application market of communication, computer and consumer electronics accounted for 77.9% of the total, occupying the larger application market of PCB.