Patent ID: 9174250
Filing Date: 2015-11-03
Classification: B08B,C23C,H01L

Abstract:
1. A method of cleaning off an organic deposition material accumulated on a mask used to form an organic deposition material pattern on a substrate, the method comprising: using the mask, having a plurality of slots in a deposition chamber comprising a deposition source, to form the organic deposition material pattern on the substrate while the mask or the substrate is separated from the other by a set distance and moved relative to the other; transporting the mask to a stock chamber maintained at a vacuum and adjacent to the deposition chamber; cleaning off the organic deposition material accumulated on the mask in the stock chamber by using a cleaning device; wherein the cleaning off of the organic deposition material is performed using plasma; wherein the cleaning device comprises: wherein the cleaning device is configured to remove an organic material deposited on the mask by using the plasma.