Coated article with low-E coating including IR reflecting layer(s) and corresponding method
4 Assignments
0 Petitions
Accused Products
Abstract
A coated article is provided that may be heat treated in certain example embodiments. A coating of the coated article includes a zinc oxide inclusive layer located over and contacting a contact layer that is in contact with an infrared (IR) reflecting layer of a material such as silver. It has been found that the use of such a zinc oxide inclusive layer results in improved thermal stability upon heat treatment, increased visible transmission, and/or lower sheet resistance (Rs).
74 Citations
44 Claims
-
1-34. -34. (canceled)
-
35. A method of making a heat treated coated article comprising a coating supported by a glass substrate, the method comprising:
-
sputter-depositing a first dielectric layer over at least the glass substrate;
sputter-depositing a first infrared (IR) reflecting layer comprising silver over at least the first dielectric layer;
sputter-depositing a first layer comprising zinc oxide over at least the first IR reflecting layer and the first dielectric layer;
sputter-depositing a second IR reflecting layer comprising silver over and contacting the first layer comprising zinc oxide;
sputter-depositing a layer comprising an oxide of NiCr over and contacting the second IR reflecting layer by sputtering a target comprising NiCr in an atmosphere comprising at least oxygen gas, so that the layer comprising the oxide of NiCr is an oxide as it is sputter-deposited on the substrate;
sputter-depositing a second layer comprising zinc oxide over and contacting the layer comprising the oxide of NiCr;
depositing another dielectric layer located over at least the second layer comprising zinc oxide; and
heat treating the coated article after the aforesaid layers have been deposited on the glass substrate, so that when measured monolithically following heat treatment the coated article has a visible transmission of at least 80%, a sheet resistance (Rs) of less than or equal to 2.5 ohms/square, and a normal emissivity (E) of less than or equal to about 0.04. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
-
Specification