Patent ID: 8330051

Claim:
A method for manufacturing a multi-layer circuit board, the method comprising: opening a slot segment on at least one daughter board to form a first daughter board; stacking at least one daughter board and medium layers, wherein the at least one daughter board comprises first daughter boards, the first daughter boards are placed in such a way that the slot segments of the first daughter boards are communicated, the slot segments are communicated to form a receiving slot, a heat conducting block is placed within the receiving slot, and each medium layer is sandwiched between the daughter boards; pressing the stacked daughter boards, medium layers, and heat conducting block; and making a multi-layer circuit board by using the pressed daughter boards and heat conducting block; wherein the at least one daughter board further comprises a least one second daughter board located at one end or two ends of the receiving slot, a heat conducting via which is defined within the multi-layer circuit board beside the heat conducting block and connected to the heat conducting block.