Patent ID: 7674713
Filing Date: 2010-03-09
Classification: C23C,H01L,Y02E,Y02P

Abstract:
1. A process for coating a substrate heated to a temperature below the condensation temperature of a semiconductor material at atmospheric pressure, comprising the steps of: mixing a controlled mass of semiconductor material and a heated inert gas stream; vaporizing the semiconductor material in the heated inert gas stream to create a fluid mixture having a temperature above the condensation temperature of the semiconductor material; directing the fluid mixture at the substrate, wherein the substrate is at substantially atmospheric pressure; depositing a layer of the semiconductor material onto a surface of the substrate; repeating the vaporizing, directing, and depositing steps, wherein a last layer of semiconductor material includes cadmium telluride; and treating the last layer including cadmium telluride with a reactive gas to enhance crystallization of the cadmium telluride.