Patent ID: 8574367
Filing Date: 2013-11-05
Classification: C23C

Abstract:
1. An evaporation source comprising a crucible in which an organic material which is an organic thin film material is accommodated, said crucible including a heating unit and at least one spray nozzle for spraying the organic material onto a substrate; wherein the heating unit is divided into at least two heaters provided in parallel and at a same vertical level on an external surface of said crucible at uniform intervals, said at least two heaters being separated from each other and being connected to each other by connecting members having elasticity; and wherein the connecting members are disposed between, and at the same vertical level as, said at least two heaters, and the connecting members surround the crucible so that connecting members formed on the external surface of a crucible having a small capacity are not extended and connecting members formed on the external surface of a crucible having a large capacity are extended by the elasticity.