Patent ID: 8978718
Filing Date: 2015-03-17
Classification: H01L,Y10S

Abstract:
1. A gas purge device to be used for a load port apparatus, the load port apparatus comprising: a side base that defines a first mini-environment; and a door capable of closing an opening portion of the side base, the door being configured to hold a lid of a sealed container for containing an object to be contained, and to open and close the lid of the sealed container so that the object to be contained is insertable and removable into/from the sealed container, the gas purge device comprising: a cover member arranged in the first mini-environment in surrounding the opening portion, the cover member defining a second mini-environment in the first mini-environment; a curtain nozzle arranged inside of the second mini-environment at a position above the opening portion, for supplying a purge gas into the second mini-environment; a pair of purge nozzles arranged inside of the second mini-environment at both side portions of the opening portion so as to be capable of supplying the purge gas into the sealed container via the opening portion; a gas supply pipe extending toward the curtain nozzle, for supplying the purge gas to each of the pair of purge nozzles from a different direction from the extending direction of the gas supply pipe, and for supplying the purge gas to an internal space of the curtain nozzle by being connected to the internal space of the curtain nozzle at an end portion in the extending direction of the gas supply pipe; and a conductance adjusting unit arranged at the end portion of the gas supply pipe connected to the internal space of the curtain nozzle, for adjusting conductance at the end portion at the time of supplying the purge gas to the internal space of the curtain nozzle.