Patent ID: 8278768

Claim:
A semiconductor device comprising: a lead frame having an island and an inner lead; a semiconductor chip disposed on the island; a plurality of electrodes formed on the semiconductor chip; and a plurality of wires each connecting each of the electrodes to the inner lead, and each having a plurality of bending points, wherein: a first wire of the plurality of the wires has a slope extending upwardly from a first bending point of the first wire toward a second bending point of the first wire, and has a slope extending only downwardly between the second bending point of the first wire and a second connecting point of the first wire, where the first bending point of the first wire is located at an upper end of a rising portion of the first wire rising upwardly from a first connecting point of the first wire on the electrode, and the second bending point of the first wire is the highest bending point in the first wire measured from a surface level of the island, and the first wire connects the inner lead at the second connecting point of the first wire, and a second wire of the plurality of the wires has a slope extending downwardly from a first bending point of the second wire toward a second bending point of the second wire, where the first bending point of the second wire is located at an upper end of a rising portion of the second wire rising upwardly from a first connecting point of the second wire on the electrode, and the second bending point of the second wire is the lowest bending point in the second wire measured from the surface level of the island.