Patent ID: 8123862

Claim:
A deposition apparatus comprising: a film formation chamber including, an evaporation source comprising: a hollow cylindrical wall, the hollow cylindrical wall comprising a first cylindrical heater and a second cylindrical heater under the first cylindrical heater; a crucible having a top cover, the top cover having an opening, wherein the crucible is provided so as to be surrounded by the hollow cylindrical wall; a support provided so as to be in direct contact with a bottom surface of the crucible; and a driving portion being arranged to move the support together with the crucible between a first position and a second position, wherein the first position allows the first cylindrical heater to surround an entirety of a side surface of the crucible, wherein the second position allows the first cylindrical heater to surround the opening of the crucible and the second cylindrical heater to surround a lower portion of the crucible, and wherein a length of the hollow cylindrical wall is greater than a distance between the opening of the crucible and the bottom surface of the crucible.