Device useful for pulling a single crystal made of semiconductor material, comprises a pot-like element, which shields the growing crystal from thermal radiation, and the cross-section of the pot-like element is reduced by a hole

摘要

Device comprises a pot-like element, which shields the growing crystal from thermal radiation, where a cross-section of the pot-like element is reduced by at least one hole. Independent claims are also included for: (1) a method comprising arranging the multiple holes in the pot-like element into a circular pattern, and situating it in the vicinity of the cooling element; and (2) a method for determining and adjusting the thermal conduction of the pot-like element for shielding thermal radiation in the device for pulling a single crystal, where the device comprises a cooling element, which is filled with hot water, and the spread of the temperature in the pot-like element is observed using a thermographic camera, and is adjusted by means of screwing or by removing screws holes inserted into the pot-like element.