Patent ID: 8921147
Filing Date: 2014-12-30
Classification: C23C,H01L

Abstract:
1. A method of multi-stage vapor deposition of a tellurium containing material, the method comprising: flowing a first solid tellurium containing semiconductor material into a first heated chamber which produces a first tellurium containing material vapor, wherein the first heated chamber is heated to a temperature less than or equal to 1050° C.; depositing the first tellurium containing material vapor onto a substrate as a first tellurium containing semiconductor material layer; flowing a second solid state tellurium containing semiconductor material into a second heated chamber which produces a second tellurium containing material vapor, wherein the second heated chamber is heated to a temperature less than or equal to 1050° C.; and, depositing the second tellurium containing material vapor as a second tellurium containing material layer onto the deposited first tellurium containing material layer.