Patent ID: 8373197

Claim:
A circuit device, comprising: a circuit substrate; a first heat spreader arranged on an upper surface of the circuit substrate; a first semiconductor element fixed to an upper surface of the first heat spreader; a second heat spreader arranged, next to the first heat spreader, on the upper surface of the circuit substrate; and a second semiconductor element fixed to an upper surface of the second heat spreader; and a sealing resin body sealing the first and second heat spreaders and the first and second semiconductor elements, wherein, in plan view of the circuit device, the first heat spreader is larger than the first semiconductor element and the second heat spreader is larger than the second semiconductor element, in the plan view, a position of the first semiconductor element relative to the first heat spreader is different from a position of the second semiconductor element relative to the second heat spreader, and the circuit device is configured to operate as a separated and completed device that includes the first and second semiconductor elements and the first and second heat spreaders.