Patent ID: 7962016

Claim:
A heating crucible for an organic thin film forming apparatus, the heating crucible comprising: a main body to contain an organic substance; a cover disposed on the main body, the cover being constituted by an insulating material and comprising a nozzle through which a gaseous organic substance comes out from the main body; a cover heater disposed on a surface of the cover facing away from the main body, the cover heater being constituted by a thin film type heater; a heat-resistant layer disposed so that the cover heater is disposed between the surface of the cover facing away from the main body and the heat-resistant layer; a reflective layer disposed between the cover heater and the heat-resistant layer; and a body heater disposed on the main body; wherein the nozzle extends from a surface of the cover facing toward the main body to a surface of the heat-resistant layer facing away from the main body; wherein an entry opening of the nozzle through which the gaseous organic substance enters the nozzle is flush with the surface of the cover facing toward the main body; wherein an exit opening of the nozzle through which the gaseous organic substance exits from the nozzle is flush with the surface of the heat-resistant layer facing away from the main body; and wherein the nozzle converges from the entry opening to a throat of the nozzle at a junction between the cover and the heat-resistant layer, and diverges from the throat of the nozzle to the exit opening.