{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9698287","patent":{"patent_number":"US-9698287","title":"Epitaxial wafer, method for producing the same, semiconductor element, and optical sensor device","assignee":null,"inventors":[],"filing_date":"2014-04-23T00:00:00.000Z","publication_date":"2017-07-04T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":11,"abstract":"An epitaxial wafer of the present invention includes a substrate composed of a III-V compound semiconductor, a multiple quantum well structure composed of a III-V compound semiconductor and located on the substrate, and a top layer composed of a III-V compound semiconductor and located on the multiple quantum well structure. The substrate has a plane orientation of (100) and an off angle of −0.030° or more and +0.030° or less, and a surface of the top layer has a root-mean-square roughness of less than 10 nm."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Epitaxial wafer, method for producing the same, semiconductor element, and optical sensor device","description":"An epitaxial wafer of the present invention includes a substrate composed of a III-V compound semiconductor, a multiple quantum well structure composed of a III-V compound semiconductor and located on","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9698287","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-9698287","citation_suggestion":"Patentable. \"Epitaxial wafer, method for producing the same, semiconductor element, and optical sensor device\" (US-9698287). https://patentable.app/patents/US-9698287","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9698287","json":"https://patentable.app/api/llm-context/US-9698287","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:40:36.095Z"}