Patent ID: 9222197
Filing Date: 2015-12-29
Classification: C30B,Y10T

Abstract:
1. A shield member placed between a raw material storage part and a substrate supporting part in an apparatus for growing a single crystal, the apparatus comprising: a vessel for growing the single crystal; a raw material storage part positioned at a lower portion of the vessel for growing the single crystal; a substrate supporting part, positioned above the raw material storage part so as to be opposed to the raw material storage part to support the substrate; and a heating apparatus positioned at an outer periphery of the vessel for growing the single crystal, thereby sublimating the raw material from the raw material storage part to grow the single crystal of the raw material onto the substrate, wherein a plurality of permeation holes through which the raw material gas passes is formed, wherein the shield member consists of a plurality of ring members, individual ones of the ring members having an opening with a different inner diameter and a different specific heat capacity, and the shield member is configured such that the heat capacity thereof increases from the center toward the outer periphery by arranging the ring members with a larger specific heat capacity closer to the outer periphery.