Patent ID: 8152921
Filing Date: 2012-04-10
Classification: C30B,Y10T

Abstract:
1. A hot zone structure for a Czochralski crystal growth, comprising: a thermally insulated shielding member configured to allow an inlet flow to stream inside the thermally insulated shielding member as a first partial flow and a second partial flow, said first partial flow being guided through a melt region; a crucible; and the melt region that comprises a region above said crucible and between said crucible and said thermally insulated shielding member, and a region inside said crucible; wherein the thermally insulated shielding member comprises a channel inside a structure of said thermally insulated shielding member, said channel being configured to guide said second partial flow for preventing said second partial flow from interacting with said thermally insulated shielding member in said melt region and said first partial flow in said melt region.