Patent ID: 8034175

Claim:
A semiconductor manufacturing apparatus, comprising: a water tank that stores water; an electrolytic tank in which the water is decomposed into a hydrogen-and-oxygen mixed gas by an electric current; a gas burner that combusts the hydrogen-and-oxygen mixed gas to provide a linear flame, the gas burner including a rotatable air duct that introduces the mixed gas, the rotatable air duct rotating about its central lengthwise axis and including gas outlets positioned along a length of the rotatable air duct, wherein the gas outlets are disposed in a spiral manner along the length of the air duct around the central lengthwise axis of the air duct; a shield that includes a combustion chamber that surrounds the air duct and where the mixed gas combusts, and a nozzle that has a linear opening and emits a combustion gas; a gas controller that adds a gas to the mixed gas to regulate a mixing ratio of the mixed gas; and a moving mechanism that moves a semiconductor substrate relative to the flame of the gas burner in a direction perpendicular to the flame; wherein the air duct having a portion defining a plurality of openings at regular intervals and being moved forward and backward or rotated.