A maximum timeout time for a communication between devices is determined. Hot saline water is ejected vertically upward to double the contact time between the droplets and the surrounding air. The ratio between the amount of heat generated in said heat-generating member at Curie temperature or higher to the amount of heat generated at room temperature in said heat-generating member is not more than \xbd. Accordingly, an interval between the line and a line which is arranged close to the line, determined in response to a line width of the lines, can satisfy a design rule; and, hence, the reduction of the wiring channels can be obviated, whereby the supply rate of the wiring channels can be enhanced, and, further, the integrity of a semiconductor chip can be enhanced. The multi-phase control unit is configured to obtain the target current, compute the number of the regulator phases needed to provide the target current to the load based on the efficiency characteristic of the regulator phases, and configure the regulator phases to provide the target current to the load. A1 and A2 represent S, O or Se; at least one of R1 to R6 represents a substituent represented by *-L-R wherein L represents a divalent linking group and R represents a hydrogen atom, an alkyl group, an oligooxyethylene group, an oligosiloxane group or a trialkylsilyl group.