PROBLEM TO BE SOLVED: To provide a substrate cassette capable of stacking curved substrates so as to be parallel to each other as much as possible and storing them. SOLUTION: A substrate cassette (10) accommodating many substrates (32) laminated to each other, such as a wafer, has a first side surface (14) and a second side surface parallel to the first side surface (14). It has a housing including (16) and. At least an elongated first support (20) is provided for the substrate in the housing between the side surfaces (14, 16). The support (20) is separated from the first side surface (14) at least in part. The first aspect (14) is closest to at least one first support (20). [Selection diagram] Fig. 2
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