Patent ID: 8409347

Claim:
A doping device for injecting a volatile dopant into a semiconductor melt, the device comprising: an accommodating portion which accommodates a solid dopant, the accommodating portion comprising an upper portion, a bottom portion disposed to face the upper portion, and a lateral portion disposed between outer peripheries of the upper portion and the bottom portion; a blow-preventing member which is provided above and spaced apart from the upper portion of the accommodating portion, the blow-preventing member preventing an inert gas which flows from above to below the accommodating portion from being directly blown to the accommodating portion; a cylindrical portion which has openings in upper and lower end surfaces thereof, the opening in the upper end surface being in communication with the accommodating portion to guide a volatilized dopant gas to the melt; and a heat-shielding member which covers at least a lower side of the accommodating portion to block a radiant heat from the melt to the accommodating portion.