{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9660140","patent":{"patent_number":"US-9660140","title":"Ultraviolet light emitting diode and method for producing same","assignee":null,"inventors":[],"filing_date":"2013-10-15T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":6,"abstract":"An ultraviolet LED having increased light extraction efficiency includes: a single crystal sapphire substrate on which an array of protruding portions are formed; an AlN crystal buffer layer formed on the sapphire substrate; and an ultraviolet light emitting layer, in contact with the buffer layer, formed into a layered stack including an n-type conductive layer, a recombination layer, and a p-type conductive layer, in order from the buffer layer. The buffer layer includes a pillar array section and an integration section wherein pillars in the array are connected with one another. Each pillar extends from a protruding portion of the sapphire substrate, in a direction normal to one surface thereof. The pillars are separated from one another in the plane of the surface by a gap G. Light emitted from the ultraviolet light emitting layer is extracted to the outside through the pillar array section and the sapphire substrate."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ultraviolet light emitting diode and method for producing same","description":"An ultraviolet LED having increased light extraction efficiency includes: a single crystal sapphire substrate on which an array of protruding portions are formed; an AlN crystal buffer layer formed on","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9660140","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-9660140","citation_suggestion":"Patentable. \"Ultraviolet light emitting diode and method for producing same\" (US-9660140). https://patentable.app/patents/US-9660140","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9660140","json":"https://patentable.app/api/llm-context/US-9660140","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:35:00.559Z"}