Coated article with low-E coating including tin oxide interlayer
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Accused Products
Abstract
A coated article is provided which may be heat treated (e.g., thermally tempered) in certain instances. In certain example embodiments, an interlayer of or including a metal oxide such as tin oxide is provided under an infrared (IR) reflecting layer so as to be located between respective layers comprising silicon nitride and zinc oxide. It has been found that the use of such a tin oxide inclusive interlayer results in significantly improved mechanical durability, thermal stability and/or haze characteristics. In certain example embodiments, a zinc oxide inclusive layer is provide over an IR reflecting layer in order to improve thermal stability. A zirconium oxide overcoat may also be provided in certain example instances.
51 Citations
45 Claims
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1-27. -27. (canceled)
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28. A coated article comprising a coating supported by a glass substrate, the coating comprising:
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a first dielectric layer;
a first infrared (IR) reflecting layer comprising silver located over at least the dielectric layer;
a first layer comprising silicon nitride located over at least the first IR reflecting layer and the first dielectric layer;
a first layer comprising tin oxide located over and contacting the first layer comprising silicon nitride;
a first layer comprising zinc oxide located over and contacting the first layer comprising tin oxide, so that the first layer comprising tin oxide is located between and contacting the first layer comprising silicon nitride and the first layer comprising zinc oxide;
a second IR reflecting layer comprising silver located over and contacting the first layer comprising zinc oxide;
a contact layer located over and contacting the second IR reflecting layer;
a second layer comprising metal oxide located over and contacting the contact layer; and
at least another dielectric layer located over at least the second layer comprising metal oxide. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A coated article comprising a coating supported by a glass substrate, the coating comprising:
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a first infrared (IR) reflecting layer;
a first layer comprising silicon nitride on the glass substrate located over at least the first IR reflecting layer;
a first layer comprising tin oxide on the glass substrate located over and contacting the first layer comprising silicon nitride;
a first layer comprising zinc oxide on the glass substrate located over and contacting the first layer comprising tin oxide, so that the first layer comprising tin oxide is located between and contacting the first layer comprising silicon nitride and the first layer comprising zinc oxide;
a second IR reflecting layer comprising silver on the glass substrate located over and contacting the first layer comprising zinc oxide; and
at least another dielectric layer located over at least the second IR reflecting layer. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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Specification