- Patent Title: Movable body drive method and movable body drive system, pattern formation method and apparatus, exposure method and apparatus, device manufacturing method, and calibration method
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Application No.: US15946030Application Date: 2018-04-05
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Publication No.: US10197924B2Publication Date: 2019-02-05
- Inventor: Yuichi Shibazaki
- Applicant: NIKON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIKON CORPORATION
- Current Assignee: NIKON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2006-237692 20060901
- Main IPC: G03F7/20
- IPC: G03F7/20 ; H01L21/68 ; G03F9/00 ; G01B21/04

Abstract:
A first stage system having a first stage and a first drive system that moves the first stage is configured to hold a mask illuminated with illumination light. A second stage system having a second stage and a second drive system that moves the second stage is configured to hold a substrate. A measurement system having a first encoder system and a second encoder system measures positional information of the first and second stages, respectively. The second encoder system measures the positional information of the second stage with a plurality of heads that face a grating section. The first and second drive systems are controlled based on correction information for compensating for a measurement error of the second encoder system that occurs due to the heads and measurement information of the first and the second encoder systems.
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