In a liquid substance supply device, a three port two valve directional control valve is provided in a transfer line, and a substance container and the transfer line are connected together by a four port three valve directional control valve in such a way that the four port three valve
The present invention provides a semiconductor device which can prevent the oxidization of the surfaces of pad electrodes to enhance the connecting strength between the pad electrodes and external terminals. The semiconductor device according to the present invention comprises pad el
A blower motor control for an air conditioner is carried out so that when a detected actual rotation speed has come into an allowable deviation range to a target rotation speed at the time of controlling the motor so as to approach its rotation speed to the target rotation speed, the out
