Patent ID: 8298380

Claim:
A method of making a thermally tempered coated article including a transparent conductive film on a tempered glass substrate, the method comprising: providing a glass substrate; sputter-depositing a high index layer having a high refractive index on the glass substrate, and then sputter-depositing a low index layer having a low refractive index on the glass substrate over at least the high index layer; after the high index layer and the low index layer have been sputter-deposited on the glass substrate, sputter-depositing an amorphous film on the glass substrate over each of the high index layer and the low index layer; thermally tempering the glass substrate with the amorphous film, the low index layer, and the high index layer thereon; and wherein heat used in said tempering causes at least the amorphous film to transform into a crystalline film, and wherein the crystalline film is transparent to visible light and electrically conductive following said tempering.