{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8514373","patent":{"patent_number":"US-8514373","title":"Movable body system, pattern formation apparatus, exposure apparatus and exposure method, and device manufacturing method","assignee":null,"inventors":[],"filing_date":"2010-08-25T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["G01D","G01D"],"num_claims":85,"abstract":"A laser beam emitted by an encoder main body enters a wafer table via a PBS from the outside, and reaches a grating at a point that is located right under exposure area, and is diffracted by the grating. Then, by receiving interference light of a first polarized component that has returned from the grating and a second polarized component reflected by the PBS, positional information of the wafer table is measured. Accordingly, because the first polarized component, which has passed through PBS passes through the wafer table until it is synthesized with the second polarized component again, does not proceed through the atmosphere outside, position measurement of the wafer table can be performed with high precision without the measurement beam being affected by the fluctuation of the atmosphere around the wafer table."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Movable body system, pattern formation apparatus, exposure apparatus and exposure method, and device manufacturing method","description":"A laser beam emitted by an encoder main body enters a wafer table via a PBS from the outside, and reaches a grating at a point that is located right under exposure area, and is diffracted by the grati","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8514373","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8514373","citation_suggestion":"Patentable. \"Movable body system, pattern formation apparatus, exposure apparatus and exposure method, and device manufacturing method\" (US-8514373). https://patentable.app/patents/US-8514373","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8514373","json":"https://patentable.app/api/llm-context/US-8514373","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:09:46.018Z"}