Patent ID: 6544333
Filing Date: 2003-04-08
Classification: C23C,Y10S,Y10T

Abstract:
A silicon rod production apparatus, comprising:a reactor vessel containing at least one reaction chamber; at least one silicon filament provided within the reaction chamber; a source of a silicon-bearing gas connected to the interior of the vessel for supplying the gas into the reaction chamber to deposit polycrystalline silicon on the filament by chemical vapor deposition thereby growing a rod of polycrystalline silicon by progressively increasing the diameter of the rod; at least one induction coil that is positioned to surround at least a portion of the filament and the silicon rod to be grown thereon; and an electrical power supply that is connected to the induction coil and that supplies high frequency A.C. current to the at least one induction coil to inductively heat the growing rod.