Abstract: A method for manufacturing a substrate according to the first disclosure includes immersing a substrate on which a plurality of circuit patterns are formed in pure water or a corrosive solution, applying voltage between the plurality of circuit patterns in a state in which the substrate is immersed in the pure water or the corrosive solution and determining the substrate to be a defective product when a tree is generated in the plurality of circuit patterns due to the voltage application and determining the substrate to be a non-defective product when the tree is not generated.

Abstract: A wireless communication device including: a memory that stores a setting content of a beacon terminal to be rewritten, identification information of the beacon terminal, and a flag indicating whether the setting of the beacon terminal has been already rewritten, the setting content, the identification information and the flag being associated with each other; and a processor coupled to the memory and the processor configured to: acquire data broadcasted from the beacon terminal; and transmit the setting content to the beacon terminal, and cause the beacon terminal to change the setting when identification information of the beacon terminal included in the data acquired from the beacon terminal is identical with the identification information stored into the memory, changing the setting of the beacon terminal is not completed and a strength of a received signal from the beacon terminal is equal to or more than a threshold value.

Abstract: A wireless communication device including: a memory that stores a setting content of a beacon terminal to be rewritten, identification information of the beacon terminal, and a flag indicating whether the setting of the beacon terminal has been already rewritten, the setting content, the identification information and the flag being associated with each other; and a processor coupled to the memory and the processor configured to: acquire data broadcasted from the beacon terminal; and transmit the setting content to the beacon terminal, and cause the beacon terminal to change the setting when identification information of the beacon terminal included in the data acquired from the beacon terminal is identical with the identification information stored into the memory, changing the setting of the beacon terminal is not completed and a strength of a received signal from the beacon terminal is equal to or more than a threshold value.