Patent ID: 9421569
Filing Date: 2016-08-23
CPC Classification: B05C,B05D,C23C,C25D,G03F,H01L

Claim Text:
1. A plating apparatus of performing a plating process by supplying a plating liquid onto a substrate, the plating apparatus comprising: a substrate accommodating unit configured to accommodate therein the substrate; a plating liquid supplying device configured to supply the plating liquid of a preset temperature to the substrate accommodated in the substrate accommodating unit; a plating liquid draining device configured to drain the plating liquid dispersed from the substrate out of the substrate accommodating unit; and a controller configured to control the plating liquid supplying device and the plating liquid draining device, wherein the plating liquid supplying device includes a supply tank configured to store therein the plating liquid to be supplied onto the substrate; a discharge nozzle configured to discharge the plating liquid onto the substrate; and a plating liquid supplying line through which the plating liquid of the supply tank is supplied into the discharge nozzle, a first heating device is provided at either one of the supply tank and the plating liquid supplying line of the plating liquid supplying device, and is configured to heat the plating liquid to a first temperature lower than the preset temperature, and a second heating device is provided at the plating liquid supplying line between the first heating device and the discharge nozzle, and is configured to heat the plating liquid to a second temperature equal to or higher than the preset temperature, wherein the second heating device includes: a second temperature medium supplying unit configured to heat a second heat transfer medium to the second temperature; a temperature controller provided at the plating liquid supplying line between the first heating device and the discharge nozzle, and configured to heat the plating liquid to the second temperature by using heat of the second heat transfer medium from the second temperature medium supplying unit; and a first temperature medium supplying unit configured to heat a first heat transfer medium to the first temperature, and the controller is configured to supply the first heat transfer medium from the first temperature medium supplying unit to the temperature controller after stopping the discharge of the plating liquid from the discharge nozzle such that the plating liquid remaining in the temperature controller is cooled to the first temperature, wherein a heat transfer medium supplying line is connected with the temperature controller to supply the first and second heat transfer mediums to the temperature controller, and a flow path switching device is provided at the heat transfer medium supplying line to allow either one of the first heat transfer medium of the first temperature from the first temperature medium supplying unit and the second heat transfer medium of the second temperature from the second temperature medium supplying unit to flow in the heat transfer medium supplying line selectively.