A method of manufacturing a semiconductor substrate includes a device-forming process of forming a plurality of device areas in a substrate section, a first wiring process of forming circuit wirings connected to the plurality of device areas, an electrode pad-forming process of forming a plurality of electrode pads, a second wiring process of forming a potential adjustment wiring electrically connecting at least a part of the electrode pads, an electrode-forming process of forming electrode bodies on the electrode pads by electroless plating after the second wiring process, and a potential adjustment-releasing process of releasing a connection by the potential adjustment wiring after the electrode-forming process.