Patent ID: 8445373
Filing Date: 2013-05-21
Classification: B32B,H01L,Y02E

Abstract:
1. A method of activating an indium tin oxide (ITO) thin film deposited, directly or indirectly, on a substrate, the method comprising: baking the ITO thin film in a low oxygen environment containing oxygen at a temperature of at least 450 degrees C. for at least about 30 minutes so as to provide for (1) a post-baked resistivity of the ITO thin film that is below a resistivity of a corresponding air-baked ITO thin film, (2) a post-baked visible spectrum absorption and transmission of the ITO thin film that respectively are below and above the absorption and transmission of the corresponding air-baked ITO thin film, and (3) a post-baked infrared reflectivity of the ITO thin film that is above the reflectivity of the corresponding air-baked ITO thin film, and wherein the post-baked resistivity of the ITO film from about 1.75×10