| abstract |
The application discloses crucible and thermal field subassembly, wherein, the crucible includes the main part, the main part includes the diapire, the diapire has open-top's appearance chamber, the internal surface that holds the chamber is minor arc spherical crown or hemisphere face form, just the diapire certainly the center that holds the internal surface of chamber to open-ended thickness reduces gradually. The scheme achieves the purpose of reducing the oxygen content of the silicon rod. |