Patent ID: 6858084

Claim:
An electroless plating apparatus comprising: a holding device for holding a substrate with a surface, to be plated, facing upwardly; a plating liquid holding mechanism for sealing a periphery of the surface, to be plated, of the substrate while the substrate is held by said holding device; an electroless plating treatment liquid supply device for supplying an electroless plating liquid to the surface, to be plated, of the substrate while being sealed by said plating liquid holding mechanism to allow supplied electroless plating liquid to be retained on the substrate; a heating device provided in the vicinity of the substrate when the substrate is held by said holding device for heating the substrate in its entirety; and a temperature control device for controlling a temperature of said heating device, wherein said heating device has a plurality of divided zones and temperatures in respective zones are to be controlled, respectively, by said temperature control device.