BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1A is a partial cross-sectional view of a soldering apparatus of an embodiment 1 in a state where a stopper is in a closed position;
FIG. 1B is a partial cross-sectional view of the soldering apparatus of the embodiment 1 in a state where the stopper is in an opened position;
FIG. 2 is a process flow chart of a soldering process;
FIG. 3 is a partial cross-sectional view of a soldering apparatus of an embodiment 2;
FIG. 4 is an elevation of an open/close unit having an electromagnetic solenoid type actuator;
FIG. 5 is a cross-sectional view illustrating a nozzle assembly utilizing an open/close unit utilizing a piezo actuator;
FIG. 6 is an elevation view illustrating another open/close unit utilizing a piezo actuator;
FIG. 7A is a partial cross-sectional view of a soldering apparatus of an embodiment 3, and FIG. 7B is a bottom view seen from a direction VIIB;
FIG. 8A is a partial cross-sectional view of a soldering apparatus of an embodiment 4, and FIG. 8B is a magnified view of a portion VIIIB;
FIG. 9 is a partial cross-sectional view of a first prior soldering apparatus; and
FIG. 10 is a partial cross-sectional view of a soldering apparatus of another type.