| 摘要 |
A plating apparatus 20 has a substrate holding/rotating device 110 configured to hold and rotate a substrate 2 and a plating liquid supplying device 30 configured to supply a plating liquid 35 onto the substrate 2. The plating liquid supplying device 30 has a supply tank 31 configured to store therein the plating liquid 35 to be supplied onto the substrate 2, a discharge nozzle 32 configured to discharge the plating liquid 35 onto the substrate 2 and a plating liquid supplying line 33 through which the plating liquid 35 within the supply tank 31 is supplied into the discharge nozzle 32. Further, an ammonia gas storage unit 170 is connected to the supply tank 31, and a concentration of an ammonia component within the plating liquid 35 stored in the supply tank 31 can be maintained within a preset target range. |
