Patent ID: 7906813

Claim:
A semiconductor device, comprising: a first circuit block including a first transistor and a second transistor, the first transistor including a first semiconductor layer that is disposed on a first insulator layer, the second transistor including a second semiconductor layer that is disposed on a second insulator layer, the first insulator layer and the second insulator layer being disposed on a substrate, the first insulator layer and the second insulator layer being separated by a first insulating part, the first insulating part separating the first transistor and the second transistor, a low-voltage driver device including the first circuit block; a second circuit block including a third transistor, the third transistor including a first part of the substrate, a first high-voltage driver device including the second circuit block; a third circuit block including a fourth transistor, the fourth transistor including a second part of the substrate, a second high voltage driver device including the third circuit block; a second insulating part that separates the first circuit block and the second circuit block; and a third insulating part that separates the first circuit block and the third circuit block, the second circuit block being disposed adjacent to the first circuit block, the third circuit block being disposed adjacent to the first circuit block, the second circuit block and the third circuit block being isolated by the first circuit block.