Patent ID: 9281223
Filing Date: 2016-03-08
CPC Classification: H01L

Claim Text:
1. A coupling system comprising: a transfer box having a transfer box body and a transfer box door; and an apparatus having an apparatus body and an apparatus door, wherein the transfer box door is made to support a wafer thereon and carry the wafer within an interior of the apparatus body; said coupling system having structures wherein: the transfer box has a first sealing structure hermetically sealable by means of tight coupling of the transfer box body and transfer box door; the apparatus has a second sealing structure hermetically sealable by means of tight coupling of the apparatus body and apparatus door; the transfer box and apparatus have a third sealing structure hermetically sealable by means of tight coupling of both, as formed between the transfer box body and apparatus body; and only when the transfer box and apparatus are tightly coupled, one undivided coupling chamber is formed hermetically by the third sealing structure, where a means for cleaning the coupling chamber is provided, and the transfer box door is separated from the transfer box body and taken into the interior of the apparatus body together with the apparatus door while supporting the wafer on the transfer box door.