Patent ID: 8404046
Filing Date: 2013-03-26
Classification: C30B,Y10T

Abstract:
1. A single crystal silicon pulling device, comprising, in a furnace, a cylindrical body surrounding a pulling path of single crystal silicon and a thermal shielding body surrounding the cylindrical body, the single crystal silicon pulling device pulling up the single crystal silicon while supplying gas from an upper part to a lower part in the furnace, the cylindrical body consisting of a thermal adjusting coiled pipe supplied with a medium for thermal adjusting coiled in a helical shape with a single crystal silicon pulling path of single crystal silicon being an approximate center, and a coil complementary member having an upper end being attached along a whole or part of a lower end of the thermal adjusting coiled pipe, and together with the thermal adjusting coiled pipe, forming a coil body to make constant intervals between any part of a lower end of the coil body and the thermal shielding body wherein, S