Patent ID: 8562111

Claim:
A semiconductor device in which a plurality of segments are formed on a semiconductor substrate, each segment including a plurality of driving units for discharging a liquid in nozzles, each driving unit including a driving circuit and an element which is driven by the driving circuit to apply, to the liquid, energy for discharging the liquid in the nozzle, wherein the semiconductor device includes a power supply pad which receives supply of external power, and a plurality of conductive patterns which supply the power from the power supply pad to the respective segments, each of the conductive patterns includes a first conductive portion which is connected to the power supply pad and elongated in a first direction, a second rectangular conductive portion which is elongated in the first direction, a third conductive portion which is connected to one of the plurality of driving units, and a connection portion which connects the second conductive portion and the third conductive portion, a dimension of each of the second conductive portions in a second direction perpendicular to the first direction is greater than a dimension of a corresponding one of the first conductive portions in the second direction, each of the second conductive portions is connected to the corresponding one of first conductive portions at a first corner and to a corresponding one of the connection portions at a second corner diagonal to the first corner, and each of the third conductive portions is elongated from a portion connected to the corresponding one of the connection portions in the first direction.