Apparatus for the pyrolytic production of rod-shaped semiconductor bodies

Claim 1

APPARATUS FOR PRODUCING ROD-SHAPED SEMICONDUCTOR BODIES OF HIGH PURITY BY PYROLYTICALLY DISSOCIATING AND PRECIPITATING THE SEMICONDUCTOR SUBSTANCE FROM A GASEOUS COMPOUND THEREOF UPON A HEATED CARRIED OF THE SAME MATERIAL, COMPRISING A VESSEL HAVING A METALLIC BASE PLATE, A PARTITION OF VITREOUS MATERIAL SUBDIVIDING THE INTERIOR OF SAID VESSEL INTO AN UPPER REACTION SPACE AND A LOWER ANTECHAMBER ADJACENT TO SAID BASE PLATE AND OF SMALLER HEIGHT THAN SAID REACTION SPACE, A STRUCTURE OF INVERTED U-SHAPE FORMING THE CARRIER LOCATED IN SAID REACTION SPACE AND HAVING ITS TWO ENDS PASS THROUGH SAID PARTITION, CURRENT-SUPPLYING HOLDER MEANS FOR SAID RESPECTIVE ENDS OF SAID STRUCTURE AND GAS-DUCT MEANS FOR SUPPLYING AND DISCHARGING GAS TO AND FROM SAID REACTION SPACE, SAID HOLDER MEANS AND SAID GAS-DUCT MEANS EXTENDING THROUGH SAID BASE PLATE AND BEING SUBSTANTIALLY CONTAINED IN SAID ANTECHAMBER, AND A LINER PLATE OF HEAT-INSULATING INORGANIC MATERIAL DISPOSED FACE-TO-FACE UPON SAID BASE PLATE AND SUBSTANTIALLY ENTIRELY COVERING IT WITH RESPECT TO SAID ANTECHAMBER.