Patent ID: 8624408

Claim:
A circuit device comprising: a circuit board having a first main surface, a second main surface opposite from the first main surface and a side surface connecting the first and second main surfaces; a conductive pattern disposed on the first main surface of the circuit board; a circuit element disposed on the conductive pattern; and a resin encapsulant covering the circuit board and comprising a first resin encapsulant covering at least the first main surface of the circuit board and part of the side surface of the circuit board and a second resin encapsulant covering at least the second main surface of the circuit board and part of the side surface of the circuit board, wherein a polymerized region of the first resin encapsulant and the second resin encapsulant is formed beside the side surface of the circuit board, and the polymerized region is located closer to the first main surface than to the second main surface so that a top portion of the polymerized region is located at a position lower than the first main surface of the circuit board.