Patent ID: 8192544
Filing Date: 2012-06-05
Classification: C30B,F27B,F27D,Y02P,Y10T

Abstract:
1. An apparatus configured to manufacture a polycrystalline silicon ingot for solar batteries comprising a door control device using a hinge, the apparatus comprising: a vacuum chamber; a crucible in the vacuum chamber, wherein the crucible has a predetermined shape; a susceptor surrounding the crucible to protect the crucible; a support under the susceptor configured to support the susceptor; a heater configured to heat the crucible to melt a raw silicon material in the crucible; an insulation plate below the susceptor spaced apart by a predetermined distance from the susceptor, wherein the insulation plate comprises an opening; a cooling plate having a diameter corresponding to a diameter of the opening of the insulation plate, wherein the cooling plate is configured to move upwards through the opening of the insulation plate and come into close contact with or approaching a lower end of the susceptor to cool a lower end of the crucible; a cooling plate support shaft under the cooling plate to support the cooling plate; a cooling plate moving unit configured to actuate the cooling plate and the cooling plate support shaft; an inert gas supply and discharge unit configured to supply inert gas into the vacuum chamber or discharge the inert gas outside of the vacuum chamber; a temperature sensor configured to measure a temperature of the crucible; and a control unit configured to control the temperature in the crucible using an output value transmitted from the temperature sensor such that the raw silicon material is evenly melted and grown in the crucible, wherein: