Patent ID: 9745657
Date: 2017-08-29
CPC Classifications: C23C,H01L

Claim:
1. A method of forming a thin film, the method comprising: inserting a mask into a chamber, such that a first surface of the mask faces a support, and a second surface of the mask, opposite the first surface, faces a deposition source; depositing a first coating layer on the first surface of the mask by emitting one or more deposition materials from the deposition source toward the mask, such that the one or more deposition materials are deposited through a plurality of first slits in the mask onto the first surface of the mask; depositing a second coating layer on the second surface of the mask, such that the first and second coating layers are deposited simultaneously on the first and second surfaces of the mask, respectively; after deposition the first and second coating layers arranging a substrate between the support and the first surface of the mask, such that the first coating layer on the first surface of the mask contacts the substrate; and forming a thin film on the substrate by emitting the one or more deposition materials from the deposition source towards the substrate through a plurality of openings in the mask, such that the one or more deposition materials deposited on the substrate through the opening in the mask define the thin film.