Abstract:
PROBLEM TO BE SOLVED: To rapidly test physical characteristics about the performance of a substrate and a lithographic equipment. SOLUTION: The characteristic is tested about the extending pattern formed at least by a single line approximately extending in a first direction. The extending pattern is formed on the substrate or a substrate table and preferably extends 50 times as long as the width of the line. The testing method includes a procedure to move the substrate table in the first direction x, and one to measure the characteristic of the extending pattern in the first direction. The characteristic is the result of the physical characteristic of the extending pattern in the second direction y normal to the first direction. In the next step, the position of the substrate table is corrected from the measured position of the extending pattern. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a structure of a substrate support that has low heat sensitivity while the structure is light and stiff. SOLUTION: A lithographic apparatus includes: an illumination system configured to adjust a radiation beam; a support constructed to support a patterning device, the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a substrate support constructed to hold a substrate; and a projection system configured to project the patterned radiation beam onto a target portion of the substrate. The substrate support includes parts made of an open cell plastic foam material. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a calibration method for calibrating a stage position of a lithography apparatus. SOLUTION: This detection method detects a property of an extended pattern formed by at least one line generally extending in a first direction. The extended pattern is formed on a substrate W or on a substrate table WT and preferably extends over a length at least 50 times wider than a width of the line. The extended pattern is focus sensitive. The detection method includes moving the substrate table WT in the first direction and measuring along the first direction the property of the extended pattern. The property may be a result of a physical property of the extended pattern in a second direction at a right angle to the first direction. A next step allows a calibration of a substrate table position to be derived from the measured position of the extended pattern. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
ITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD A detection method for detecting a property of an extended pattern formed by at least one line generally extending in a first direction. The extended pattern is formed on a substrate or on a substrate table and preferably extends over a length of at least 50x the width of the line. The extended pattern is focus sensitive. The detection method includes moving the substrate table in a first direction and measuring along that first direction a property of the extended pattern. The property can be a result of a physical property of the extended pattern in a second direction perpendicular to the first direction. In a next step a calibration of the substrate table position can be derived from the measured position of the extended pattern.
Abstract:
A detection method for detecting a property of an extended pattern formed by at least one line generally extending in a first direction. The extended pattern is formed on a substrate or on a substrate table and preferably extends over a length of at least 50x the width of the line. The extended pattern is focus sensitive. The detection method includes moving the substrate table in a first direction and measuring along that first direction a property of the extended pattern. The property can be a result of a physical property of the extended pattern in a second direction perpendicular to the first direction. In a next step a calibration of the substrate table position can be derived from the measured position of the extended pattern.