Patent ID: 9644894
Date: 2017-05-09
CPC Classifications: F27B,F27D,H01L

Claim:
1. A heat treatment container for a heat treatment on a SiC substrate under Si vapor pressure, the SiC substrate made of, at least in a surface thereof, single crystal SiC, the heat treatment container comprising: a container part including an internal space in which Si vapor pressure is caused, the internal space being partially open; and a substrate holder that is able to support the SiC substrate, the substrate holder configured such that, when the substrate holder supports the SiC substrate, an open portion of the container part is covered so that the internal space is hermetically sealed, wherein the open portion of the internal space of the container part is covered by the SiC substrate, the SiC substrate is placed on the substrate holder, thereby making the surface to be treated of the SiC substrate face the hermetically sealed space, and the heat treatment container in which the SiC substrate is heated under the Si vapor pressure is for etching.