{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9748229","patent":{"patent_number":"US-9748229","title":"Semiconductor device","assignee":null,"inventors":[],"filing_date":"2015-11-30T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":3,"abstract":"A semiconductor device includes: an FET structure that is formed next to a looped trench on a semiconductor substrate and that has an n+ emitter region and an n− drain region facing each other in the depth direction of the looped trench across a p-type base region; a p-type floating region formed on the side of the looped trench opposite to the FET structure; and an emitter connecting part that is electrically connected to the n+ emitter region and a trench gate provided in the same trench, the emitter connecting part and the trench gate being insulated from each other by the looped trench. The trench gate faces the FET structure, and the emitter connecting part faces the p-type floating region, across 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","description":"A semiconductor device includes: an FET structure that is formed next to a looped trench on a semiconductor substrate and that has an n+ emitter region and an n− drain region facing each other in the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9748229","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-9748229","citation_suggestion":"Patentable. \"Semiconductor device\" (US-9748229). https://patentable.app/patents/US-9748229","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9748229","json":"https://patentable.app/api/llm-context/US-9748229","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:17:46.982Z"}