Patent ID: 7884622

Claim:
A method of adjusting a moving position of a transfer arm, the transfer arm transferring a substrate to a mounting part for mounting the substrate thereon, said method comprising the steps of: supporting on the transfer arm a position detecting jig in a substrate shape having a capacitive sensor, the capacitive sensor being capable of detecting a capacitance between the capacitive sensor and a target object to detect a relative position to the target object; transferring the position detecting jig by the transfer arm and mounting the position detecting jig onto the mounting part; detecting a position of the position detecting jig with respect to a target object formed on the mounting part by the capacitive sensor on the position detecting jig to detect a mounting position of the position detecting jig on the mounting part; adjusting a moving position of the transfer arm when transferring the position detecting jig based on the mounting position of the position detecting jig; and when moving the position detecting jig by the transfer arm to above the mounting part, then delivering the position detecting jig to a rising/lowering member of the mounting part, and then lowering the position detecting jig by the rising/lowering member to mount the position detecting jig onto the mounting part, detecting a position of the position detecting jig with respect to the rising/lowering member as a target object by the capacitive sensor on the position detecting jig before lowering the position detecting jig, to detect a position in a horizontal direction of the position detecting jig above the mounting part.