Patent ID: 8097342

Claim:
An oven door assembly comprising: first, second, and third substantially parallel and spaced apart glass substrates, the first substrate being provided for an interior side of the oven door and the third substrate being provided for an exterior side of the oven door, with the second substrate being located between at least the first and third substrates; a first sputter-deposited transparent conductive coating (TCC) supported by a major surface of the first substrate facing away from an interior of the oven; a second sputter-deposited TCC supported by a major surface of the second substrate; wherein each said TCC comprises: a first barrier layer comprising silicon nitride, a first contact layer on and directly contacting the first barrier layer, a conductive layer comprising silver on and directly contacting the first contact layer, a second contact layer on and directly contacting the conductive layer comprising silver, a second barrier layer, which is a dielectric, over at least the second contact layer, and a protective overcoat based on zirconium oxide on and contacting the second barrier layer.