Patent ID: 7086540

Claim:
A storage cassette for accommodating substrates, comprising: a box-shaped case with a space for retaining substrates and defining an entrance for inserting the substrates into the space; and a stopping mechanism comprising a first locating mechanism, a second locating mechanism and a stopper engaged therebetween, wherein the first and second locating mechanisms are respectively located at opposite sides of the entrance of the case, and each locating mechanism defines a first locating means, a second locating means closer to a corresponding side of the opposite sides of the entrance of the case than the first locating means, and a connecting means interconnecting the first locating means and the second locating means; wherein in a first position, the stopper is engaged in the first locating means whereby substrates accommodated in the cassette cannot be displaced; and in a second position, the stopper is engaged in the second locating means whereby the substrates can be freely removed from the space.