Applied Materials, Inc.
EVAPORATION APPARATUS, VAPOR DEPOSITION APPARATUS, AND EVAPORATION METHOD

Abstract:

An evaporation apparatus (100) is described, particularly for evaporating a reactive material such as lithium. The evaporation apparatus (100) includes an evaporation crucible (110) for evaporating a liquid material (105), a material conduit (120) for supplying the liquid material (105) to the evaporation crucible (110), and a valve (150) configured to close the material conduit (120) by solidifying a part of the liquid material (105) in the material conduit (120) with a cooling device (152). The valve (150) may include a cooling gas supply (154) for a cooling gas (106), and the cooling device (152) may be configured to cool the liquid material (105) with the cooling gas (106). Further described are a vapor deposition apparatus (200) for coating a substrate as well as an evaporation method.