Patent ID: 8389423

Claim:
A semiconductor device manufacturing method, comprising: performing a laser spike annealing, by irradiating light, whose wavelength is equal to or more than 10 μm and equal to or less than 11 μm, onto a principal surface of a semiconductor substrate, the semiconductor substrate including: an active area; a circuit pattern formed on the active area, the circuit pattern being associated with a circuit operation; and a dummy pattern formed on the active area and at a position, whose distance from an end of the active area is equal to or more than 10 μm and equal to or less than 11 μm, the dummy pattern being associated with no circuit operation, the dummy pattern including a plurality of cyclically arranged dummy gate conductors at a pitch equal to or more than 10 nm and equal to or less than 510 nm, while setting an angle formed between an arrangement direction of the dummy gate conductors and a projection direction of the light to be equal to or more than 0° and equal to or less than 30°.