Embedded copper PCBs

An embedded copper PCB is a type of circuit board that has a copper layer embedded within its core. This copper layer is often referred to as an "inner layer" or a "power plane," and it is used to provide power and ground connections for the components on the board.

Part of the copper tracks are hidden within the board, much like the majority of an iceberg is hidden beneath the surface of the water.

Embedded copper PCBs are used in a variety of electronic devices, particularly those that require high-speed or high-frequency signal processing. By providing a dedicated inner layer for power and ground connections, these PCBs can reduce electromagnetic interference (EMI) and improve signal integrity. They can also help reduce the overall size and weight of a device, since fewer external components are needed to provide power and ground connections.

Embedded copper also enables different copper weights enables greater packaging opportunities and the ability to have the outer layers on one planar level which greatly aids assembly of components.

Overall, embedded copper PCBs offer several advantages over traditional PCBs, including improved performance, reduced EMI, different copper weights on one planar level and increased space efficiency.