Patent ID: 8737081

Claim:
A cover structure suitable for covering a circuit board bearing at least one electronic device, the cover structure comprising: a first insulating layer having a first surface and a second surface opposite to each other; a second insulating layer having a third surface and a fourth surface opposite to each other and an opening passing through the third surface and the fourth surface, wherein the third surface of the second insulating layer connects to the second surface of the first insulating layer, a cavity is defined by the opening of the second insulating layer and the first insulating layer, and a thickness of the second insulating layer is greater than a thickness of the first insulating layer; a metal layer disposed on the cavity; and a patterned circuit layer disposed on the fourth surface of the second insulating layer and connecting to the metal layer, wherein the circuit board is electrically connected to the patterned circuit layer and the electronic device is sandwiched between the circuit board and the metal layer.