{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11502221","patent":{"patent_number":"US-11502221","title":"Semiconductor light-emitting device including buffer structure","assignee":null,"inventors":[],"filing_date":"2020-12-10T00:00:00.000Z","publication_date":"2022-11-15T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":10,"abstract":"A semiconductor light-emitting device includes a buffer structure, a first-type semiconductor layer on the buffer structure, an active layer on the first-type semiconductor layer, and a second-type semiconductor layer on the active layer. The buffer structure includes a nucleation layer, a first dislocation-removing structure on the nucleation layer, and a buffer layer on the first dislocation-removing structure. The first dislocation-removing structure includes a first material layer on the nucleation layer and a second material layer on the first material layer. The second material layer has a lattice constant different from a lattice constant of the first material layer. A roughness of a top surface of the first material layer is higher than a roughness of a top surface of the nucleation layer and higher than a roughness of a top surface of the second material layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor light-emitting device including buffer structure","description":"A semiconductor light-emitting device includes a buffer structure, a first-type semiconductor layer on the buffer structure, an active layer on the first-type semiconductor layer, and a second-type se","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11502221","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-11502221","citation_suggestion":"Patentable. \"Semiconductor light-emitting device including buffer structure\" (US-11502221). https://patentable.app/patents/US-11502221","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11502221","json":"https://patentable.app/api/llm-context/US-11502221","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:26:21.681Z"}