Patent ID: 8432603

Claim:
A method of fabricating an electrochromic window, the method comprising: sequentially depositing layers on a glass substrate while in a substantially vertical orientation at multiple deposition stations within a single pass integrated vacuum deposition system to fabricate an entirely inorganic and solid state electrochromic device having a low level of electric short related defects, visible during tinting of the electrochromic device; depositing a tungsten oxide electrochromic layer while the glass substrate is in a first deposition station of the multiple deposition stations; depositing a nickel tungsten oxide counter electrode layer while the glass substrate is in a second deposition station of the multiple deposition stations to form a stack of the electrochromic device including the electrochromic layer and the counter electrode layer; depositing lithium while the glass substrate is in a third deposition station of the multiple deposition stations; and depositing a transparent conductive oxide while the glass substrate is in a fourth deposition station of the multiple deposition stations, wherein the glass substrate is in the substantially vertical orientation during translational movement between the multiple stations depositing the layers on the glass substrate within the integrated vacuum deposition system, wherein the glass substrate does not leave the integrated vacuum deposition system at any time during the sequential deposition of the electrochromic layer and the counter electrode layer, and wherein the glass substrate has a size of at least 20×20 inches and up to about 80 inches by 120 inches.