| 摘要 |
A connecting device is provided to a wafer carrier for storing a wafer and connected to a purge port having a gas inlet into which a gas for purging an atmosphere in the wafer carrier flows. The connecting device includes, a base; a communication port formed in the base; and a close-contact mechanism that includes, a sealing ring, a groove, and a pressure-reducing passage that communicates with the groove. The pressure in a space defined by the groove and a peripheral edge of the gas inlet is reduced at a position where the base makes contact with the purge port, bringing the gas inlet into close contact with the communication port.
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