Patent ID: 8771806
Filing Date: 2014-07-08
Classification: B05D,C23C

Abstract:
1. A method of coating a surface of a workpiece with fluorocarbon, comprising: generating first atmospheric pressure glow plasma by supplying a reaction gas into a discharge space formed between a first electrode and a second electrode, the reaction gas containing hydrocarbon gas, fluorocarbon gas, and inert gas, the first and second electrodes being connected to an RF power supply of an atmospheric pressure plasma generator; and approaching the workpiece to the first electrode at a downstream side of a flow of the reaction gas passing through the discharge space and placing the workpiece outside the discharge space formed between the first and second electrodes, such that the first atmospheric pressure glow plasma generated in the discharge space is transferred into a space, which is between the first electrode and the workpiece and other than the discharge space, to generate a second atmospheric pressure glow plasma therein, whereby a fluorocarbon coating layer is formed on the surface of the workpiece and a contact angle of the coating layer with water is no less than 150 degrees; wherein a volume ratio fluorocarbon/hydrocarbon of the fluorocarbon gas and hydrocarbon gas contained in the reaction gas is within a range of 0.1 to 10.