Invention Grant
- Patent Title: Exposure apparatus, movable body drive system, pattern formation apparatus, exposure method, and device manufacturing method
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Application No.: US15704412Application Date: 2017-09-14
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Publication No.: US10310384B2Publication Date: 2019-06-04
- 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: JP2007-340460 20071228; JP2007-340641 20071228; JP2008-110766 20080421; JP2008-303735 20081128
- Main IPC: G03B27/42
- IPC: G03B27/42 ; G03B27/52 ; G03F7/20 ; G03F9/00

Abstract:
While a wafer stage moves linearly in a Y-axis direction, surface position information of a wafer surface at a plurality of detection points set at a predetermined interval in an X-axis direction is detected by a multipoint AF system, and by a plurality of alignment systems arranged in a line along the X-axis direction, marks at different positions on the wafer are each detected, and a part of a chipped shot of the wafer is exposed by a periphery edge exposure system. This allows throughput to be improved when compared with the case when detection operation of the marks, detection operation of the surface position information (focus information), and periphery edge exposure operation are performed independently.
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