Patent ID: 8265787

Claim:
A substrate processing apparatus comprising: a substrate placing table having a placing surface for placing a substrate thereon; a processing section for processing the substrate on the substrate placing surface; a relative position changing device for changing a relative position of the substrate on the placing surface relative to the processing section; an image pickup section holding member which is fitted to the substrate placing table so as to be movable in a first direction relative to the placing surface and which has a facing section facing a normal direction of the placing surface and extending along a second direction; an image pickup section which is fitted to the facing section and which can pick up images of a first marker, a second marker and a third marker formed on the substrate placed on the placing surface; a storage section which can store a position of the first marker on the substrate and a position of the third marker on the substrate; and a control unit for performing control comprising, a first control, based on a signal from the image pickup section, to make the relative position changing device change the relative position so that a direction of a line connecting the first marker and the second marker accords with the first direction, a second control, based on a signal from the image pickup section, to store positions of the first marker and the third marker in a state that the direction of the line connecting the first marker and the second marker accords with the first direction, and a third control, based on a signal from the image pickup section that has picked up an image of a substrate other than the foregoing substrate of which the positions of the first marker and the third marker have been stored in the storage section, to make the relative position changing device change a relative position of the other substrate relative to the processing section so that a direction of a line connecting a first marker and a third marker on the other substrate accords with a direction of a line connecting the first marker and the third marker calculated from the positions of the first marker and the third marker stored in the storage section.