Patent ID: 7493705
Filing Date: 2009-02-24
Classification: F26B

Abstract:
1. A reduced-pressure drying apparatus for drying a solvent in a liquid under a reduced pressure by evaporation of the solvent, comprising: a chamber including a first chamber and a second chamber, the first chamber accommodating work to which a liquid containing a film forming material is applied, the second chamber being coupled to the first chamber through a communicating part; a depressurizing unit depressurizing at least the second chamber; a communicating valve opening and closing the communicating part; a control unit controlling a reduced pressure state at least of the second chamber by driving the depressurizing unit, the control unit also controlling an opening and closing state of the communicating part by driving the communicating valve; an introducing valve introducing an inactive gas at least into the first chamber from outside, wherein the control unit drives the introducing valve to introduce the inactive gas into the first chamber in the case where vapor of the solvent diffused in the first chamber is exhausted; and a rectifying plate provided in the first chamber, the rectifying plate having a plurality of venting holes for rectifying a flow of the introduced inactive gas from the work toward the communicating part.