PCB Shield Can
Shield cans are more common in mobile phone PCBs, mainly because mobile phones have GPS, BT, Wifi, 2G/3G/4G/5G and other wireless communication circuits, some such as sensitive analog circuits, DC-DC switching power supply circuits, generally, It needs to be isolated with a shield, on the one hand, so as not to affect other circuits, and on the other hand, to prevent other circuits from affecting itself. Another function of the shield is to prevent collisions. After PCB SMT, it will be divided into boards. Generally, adjacent boards need to be separated to prevent them from being too close and causing collisions in subsequent tests or other transportation processes.