Patent ID: 8735188

Claim:
An atomic layer deposition apparatus comprising: a reaction chamber; a substrate support installed at an inside of the reaction chamber to support a substrate; and a shower head including one or more nozzle sets configured to inject first and second source gases and a purge gas onto the substrate, wherein the shower head is disposed above the substrate support, wherein at least one of the substrate support and the shower head is installed so as to move in a first direction, wherein each of the one or more nozzle sets includes a first part nozzle set configured to deposit the first source gas and a second part nozzle set configured to deposit the second source gas, wherein the first part nozzle set includes a first source gas injection nozzle, a purge gas injection nozzle, and a purge gas exhaust hole, wherein the second part nozzle set includes a second source gas injection nozzle, a purge gas injection nozzle, and a purge gas exhaust hole, and wherein each of the first and second source gas injection nozzles, the purge gas injection nozzle, and the purge gas exhaust hole extends in a substantially perpendicular direction to the first direction, and wherein the purge gas injection nozzle has a slope inclined toward the purge gas exhaust hole.