Patent ID: 8349145
Filing Date: 2013-01-08
Classification: C23C,H01L

Abstract:
1. A method of burying metal, comprising the steps of: preparing a substrate having a concave portion formed thereon; and supplying a metal vapor including a metal, in a gaseous state, a halogen-containing gas containing at least a halogen for etching the metal and a metal halide vapor including a metal halide in a gaseous state being a compound of element of the metal and element of the halogen, to the substrate, wherein the metal halide is deposited in the concave portion by supplying the metal halide vapor to the substrate to form a metal halide layer therein, and a metal in the metal vapor is precipitated under the metal halide layer by supplying the metal vapor to the formed metal halide layer, thereby depositing the metal between the metal halide layer and the substrate.