{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8471377","patent":{"patent_number":"US-8471377","title":"Semiconductor device and semiconductor circuit substrate","assignee":null,"inventors":[],"filing_date":"2011-04-21T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":16,"abstract":"A semiconductor circuit substrate includes a transistor-forming substrate and a circuit-forming substrate. The transistor-forming substrate is a GaN substrate and has a Bipolar Junction Transistor (BJT) located in its top surface. The bottom surface of the transistor-forming substrate is flat and has contact regions. The circuit-forming substrate is a material other than a compound semiconductor and has no semiconductor active elements. The circuit-forming substrate has a flat top surface, contact regions buried in and exposed at the top surface, and passive circuits. The transistor-forming substrate and the circuit-forming substrate are directly bonded together without any intervening film, such as an insulating film."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor device and semiconductor circuit substrate","description":"A semiconductor circuit substrate includes a transistor-forming substrate and a circuit-forming substrate. The transistor-forming substrate is a GaN substrate and has a Bipolar Junction Transistor (BJ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8471377","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-8471377","citation_suggestion":"Patentable. \"Semiconductor device and semiconductor circuit substrate\" (US-8471377). https://patentable.app/patents/US-8471377","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8471377","json":"https://patentable.app/api/llm-context/US-8471377","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:50:41.470Z"}