Circuit board with embedded copper block

The utility model relates to a circuit board with embedded copper blocks, and relates to the technical field of circuit board structure design. A circuit board embedded with a copper block comprises a circuit board body and the copper block, the circuit board body is formed by stacking a plurality of alternately arranged core board layers and resin layers, and the copper block is embedded in the core board layers and the resin layers; windows are formed between the copper block and the core plate layers on the two sides, windows are formed between the copper block and the resin layers on the two sides, and the windows between the copper block and the core plate layers on the two sides and the windows between the copper block and the resin layers on the two sides are filled with flowing glue. The periphery of each core plate layer is coated with a copper foil layer; the circuit board body is also provided with a through hole. According to the circuit board with the embedded copper block, large expansion coeffi