Ulvac, Inc.

Hisato Tanaka

Yuya Inoue

Tamotsu Tanifuji

Makoto Takahashi

Kuniyoshi Sekine

A substrate transfer processing apparatus capable of processing a substrate at high speed is provided. A mounting table on which a substrate is mounted includes a plate-shaped main body and a recessed part formed in a rear surface of the plate-shaped main body. Since the mounting table is lightweight as compared to the mounting table before the recessed part is formed therein, the load on a motor is small and the running cost is low even when the mounting table is moved at high speed. Because the plate-shaped main body is made of granite, the mounting surface can be made flat and smooth by polishing. Since the mounting surface is flat and smooth, the accuracy in positioning the substrate is high.

Substrate transfer processing apparatus

Provided is a substrate stage which can transfer a substrate at a high speed. In the substrate stage of the present invention, auxiliary mounting tables are attached to a main mounting table, and lower rails are arranged over on the main mounting table and above the auxiliary mounting tables. When both ends of the lower rails are bent upwardly by a vertically adjusting unit in order to prevent the both ends of the lower rails to be bent downwardly, the lower rails are made straight. Since the lower rail is not divided, the linearity is ensured and the moving plate does not stutter so that transfer of the substrate at high speed can be performed.

Stage

A movable table, which has a substrate to be processed mounted thereon and moves, includes: a main plate formed of a metallic material; and a plurality of sub plates which is disposed on the main plate and is formed of a material with a hardness higher than the metallic material, and the top surfaces of the plurality of sub plates are mounting surfaces of the substrate to be processed.

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Chigasaki, Japan

Hisato Tanaka