Patent ID: 9594314
Date: 2017-03-14
CPC Classifications: G03F

Claim:
1. An exposure apparatus configured to expose a pattern on a substrate, the apparatus comprising: a first detector configured to detect a shape of the substrate; a first alignment unit configured to conduct a first alignment of the substrate based on a detection result of the first detector; a second detector configured to detect a mark formed on the substrate that was aligned by the first alignment unit; a second alignment unit configured to conduct a second alignment of the substrate that was aligned by the first alignment unit based on a detection result of the second detector; and a controller, wherein, in a case where the first alignment of the substrate under a first condition cannot be conducted normally, the controller is configured to control the first alignment unit so that the first alignment of the substrate under a second condition is conducted, wherein the first alignment of the substrate under the first condition enables the second detector to detect the mark in a first view and the first alignment of the substrate under the second condition enables the second detector to detect the mark in a second view which is wider than the first view, wherein, in a case where the first alignment of the substrate was conducted under the first condition, the controller is configured to control the second alignment unit so that the second alignment of the substrate is conducted based on a detection result of the second detector which detects the mark in the first view, and wherein, in a case where the first alignment of the substrate was conducted under the second condition, the controller is configured to control the second alignment unit so that the second alignment of the substrate is conducted based on a detection result of the second detector which detects the mark in the second view.