| 摘要 |
A coating device includes a coating material source, and at least one substrate disposed opposite to the coating material source. The substrate has a coating surface that receives coating material from the coating material source to form a film thereon. A board is disposed on the coating surface of the substrate. The height and thickness of the board and the angle between the board and the substrate determines gradually changed slope and gradually changed area of the film on the board, whereby the slope and the area can be precisely controlled during the deposition process.
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