Patent ID: 8881387

Claim:
A method of shielding circuitry on a circuit board, the method comprising: applying a first layer of a conductive dam on a top surface of the circuit board about a circuitry region; applying a second layer of the conductive dam on the first layer of the conductive dam; applying a first non-conductive encapsulant to at least partially fill a first space defined between the top surface of the circuit board, the conductive dam, and the circuitry region; applying a second non-conductive encapsulant to fill a second space defined between the top surface of the circuit board and a bottom surface of the circuitry region, wherein at least a portion of the first non-conductive encapsulant extends between the second non-conductive encapsulant and the conductive dam; and applying a conductive cover on the first non-conductive encapsulant.