Patent ID: 7597962

Claim:
A heat treated coated article including a coating supported by a glass substrate, the coating comprising: a dielectric layer; a layer comprising silicon nitride; a layer comprising zinc oxide over and directly contacting the layer comprising silicon nitride; a layer comprising an oxide of Ni and/or Cr over and directly contacting the layer comprising zinc oxide; an infrared (IR) reflecting layer comprising silver on the glass substrate, located over and directly contacting the layer comprising an oxide of Ni and/or Cr; another layer comprising an oxide of Ni and/or Cr located over and directly contacting the IR reflecting layer comprising silver; a layer comprising a metal oxide located over and directly contacting the another layer comprising the oxide of Ni and/or Cr; a layer comprising silicon nitride located over the layer comprising the metal oxide; and wherein the layer comprising zinc oxide is formed using a ceramic target comprising zinc oxide so that the IR reflecting layer comprising silver has a specific resistivity (SR) of no greater than 4.2 microohms·cm and the coating has a sheet resistance of no greater than 3.8 ohms/square.