Patent ID: 7378133

Claim:
A method of forming a layer, said method comprising: installing at least first and second containers to an installation chamber, each of the first and second containers containing an organic compound; vacuum-exhausting the installation chamber; heating the first and second containers to a temperature T in the installation chamber; making a first degree of vacuum in the installation chamber and in a deposition chamber; opening a gate between the installation chamber and the deposition chamber; carrying the heated first and second containers to an evaporation holder previously heated to the temperature T, wherein the evaporation holder is in the deposition chamber; closing the gate between the installation chamber and the deposition chamber; disposing a substrate in the deposition chamber; and forming a film over the substrate in the deposition chamber by evaporating the organic compound contained in the first and second containers by making a second degree of vacuum in the deposition chamber higher than the first degree of vacuum while independently heating the first and second containers, wherein evaporation of the organic compound from the first and second containers is controlled by independently adjusting a distance between the first container and the evaporation holder and a distance between the second container and the evaporation holder.