{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9627179","patent":{"patent_number":"US-9627179","title":"Substrate alignment through detection of rotating timing pattern","assignee":null,"inventors":[],"filing_date":"2016-03-25T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["G11B","H01L","H01L","H01L","H01L","G11B","H01L","H01L"],"num_claims":20,"abstract":"Apparatus and method for aligning a rotatable substrate. In some embodiments, a circumferentially extending timing pattern is formed on a substrate. The timing pattern nominally extends about a center point of the substrate at a selected radius. The substrate is mounted to a support mechanism which rotates the substrate about a central axis. Due to mechanical tolerances, the central axis will be offset from the center point of the substrate as a result of an alignment error during the mounting of the substrate. The offset between the support mechanism central axis and the center point of the substrate is determined using a detector that detects two opposing cross-over transitions of the timing pattern during each revolution of the substrate. A feature may be written to the substrate by positioning a write element with respect to the substrate responsive to the detected offset."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Substrate alignment through detection of rotating timing pattern","description":"Apparatus and method for aligning a rotatable substrate. In some embodiments, a circumferentially extending timing pattern is formed on a substrate. The timing pattern nominally extends about a center","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9627179","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-9627179","citation_suggestion":"Patentable. \"Substrate alignment through detection of rotating timing pattern\" (US-9627179). https://patentable.app/patents/US-9627179","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9627179","json":"https://patentable.app/api/llm-context/US-9627179","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:35:24.633Z"}