Patent ID: 8211233

Claim:
A deposition apparatus comprising: a first evaporating source configured to evaporate a first evaporating source material onto a first deposition region, the first evaporating source being disposed on a base; a second evaporating source configured to evaporate a second evaporating source material onto a second deposition region, the second evaporating source being disposed on the base; a first angle limiting component in between and separated from the first evaporating sources and the second evaporating source, the first angle limiting component being disposed on the base; and second angle limiting components configured to control the size of the first deposition region and the size of the second deposition region, each of the second angle limiting components having a length greater than a length of the first angle limiting component, the second angle limiting components being disposed on the base, wherein the first evaporating source and the second evaporating source are positioned such that the first deposition region and the second deposition region partially overlap to form a first overlapping region, wherein the first evaporating source and the second evaporating source are coupled to move together in a direction with respect to a substrate to form a multilayer film on the substrate, wherein the first angle limiting component is configured to control the size of the first overlapping region, and wherein each of the second angle limiting components has first and second horizontal portions extending in a direction parallel to the substrate and a vertical portion, the first and second horizontal portions having first ends and second ends, the first ends being closer to the first evaporating source and the second evaporating source than the second ends, the vertical portion being attached between the second ends of the first and second horizontal portions.