{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9831310","patent":{"patent_number":"US-9831310","title":"Compound semiconductor device, method for producing the same, power-supply unit, and high-frequency amplifier","assignee":null,"inventors":[],"filing_date":"2013-05-23T00:00:00.000Z","publication_date":"2017-11-28T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H02M","H02M"],"num_claims":11,"abstract":"A compound semiconductor device includes: a compound semiconductor multilayer structure including a first buffer layer composed of AlN; and a second buffer layer composed of AlGaN and formed above the first buffer layer, wherein the second buffer layer contains carbon, and wherein the concentration of carbon in the second buffer layer increases with increasing distance from a lower surface of the second buffer layer toward an upper surface of the second buffer layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Compound semiconductor device, method for producing the same, power-supply unit, and high-frequency amplifier","description":"A compound semiconductor device includes: a compound semiconductor multilayer structure including a first buffer layer composed of AlN; and a second buffer layer composed of AlGaN and formed above the","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9831310","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-9831310","citation_suggestion":"Patentable. \"Compound semiconductor device, method for producing the same, power-supply unit, and high-frequency amplifier\" (US-9831310). https://patentable.app/patents/US-9831310","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9831310","json":"https://patentable.app/api/llm-context/US-9831310","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:58:35.253Z"}