{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9711685","patent":{"patent_number":"US-9711685","title":"Sapphire substrate and method for manufacturing the same and nitride semiconductor light emitting element","assignee":null,"inventors":[],"filing_date":"2016-04-11T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":19,"abstract":"A sapphire substrate provided with a plurality of projections on a principal surface on which a nitride semiconductor is grown to form a nitride semiconductor light emitting element. The projections have a substantially triangular pyramidal-shape the projections having a plurality of side surfaces and a pointed top. The side surfaces have an inclination angle of between 53° and 59° from a bottom of the projections. The side surfaces are crystal-growth-suppressed surfaces on which a growth of the nitride semiconductor is suppressed relative to a portion of the principal surface located between adjacent projections. A bottom of the projections has a substantially triangular shape having three outwardly curved arc-shaped sides, and each of the side surfaces has a substantially triangular shape having vertexes located at the top of the projection and at both ends of a respective side of the bottom of the projection."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Sapphire substrate and method for manufacturing the same and nitride semiconductor light emitting element","description":"A sapphire substrate provided with a plurality of projections on a principal surface on which a nitride semiconductor is grown to form a nitride semiconductor light emitting element. The projections h","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9711685","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-9711685","citation_suggestion":"Patentable. \"Sapphire substrate and method for manufacturing the same and nitride semiconductor light emitting element\" (US-9711685). https://patentable.app/patents/US-9711685","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9711685","json":"https://patentable.app/api/llm-context/US-9711685","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:09:45.007Z"}