Patent ID: 8691339
Filing Date: 2014-04-08
Classification: C23C,H01L,H05B

Abstract:
1. A method of forming a multilayer film on a substrate, the method comprising: depositing a first evaporating source material from a first evaporating source emitting a first projection and a second evaporating source material from a second evaporating source emitting a second projection onto the substrate while moving a base in a horizontal direction, the base being attached to the first evaporating source, the second evaporating source, a first angle limiting component, and a second angle limiting component; limiting the first projection and the second projection with the first angle limiting component extending from the base for a first length in a vertical direction, the first angle limiting component being between the first evaporating source and the second evaporating source, the limiting of the first projection and the second projection comprising selecting the first length; and further limiting the first projection with the second angle limiting component comprising: wherein the first evaporating source material and the second evaporating source material are different from each other, wherein the first evaporating source, the second evaporating source, the first angle limiting component, and the second angle limiting component are positioned with respect to each other and in accordance with the selected first and second lengths to provide a non-overlapping deposition region of the first evaporating source material, an overlapping deposition region of the first evaporating source material and the second evaporating source material, and a non-overlapping deposition region of the second evaporating source material such that when the base is moved in the horizontal direction, the multilayer film is formed comprising a first layer that is a deposition of only the first evaporating source material, a second layer that is a deposition of a mixture of the first evaporating source material and the second evaporating source material, and a third layer that is a deposition of only the second evaporating source material, and wherein the first and second lengths are selected to control thicknesses of the first, second, and third layers.