{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9633997","patent":{"patent_number":"US-9633997","title":"Semiconductor device and method for manufacturing semiconductor device","assignee":null,"inventors":[],"filing_date":"2014-09-08T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":6,"abstract":"A semiconductor device, in which, in a density distribution of first conductivity type impurities in the first conductivity type region measured along a thickness direction of the semiconductor substrate, a local maximum value N1, a local minimum value N2, a local maximum value N3, and a density N4 are formed in this order from front surface side, a relationship of N1>N3>N2>N4 is satisfied, a relationship of N3/10>N2 is satisfied, and a distance “a” from the surface to the depth having the local maximum value N1 is larger than twice a distance “b” from the depth having the local maximum value N1 to the depth having the local minimum N2. "},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor device and method for manufacturing semiconductor device","description":"A semiconductor device, in which, in a density distribution of first conductivity type impurities in the first conductivity type region measured along a thickness direction of the semiconductor substr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9633997","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-9633997","citation_suggestion":"Patentable. \"Semiconductor device and method for manufacturing semiconductor device\" (US-9633997). https://patentable.app/patents/US-9633997","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9633997","json":"https://patentable.app/api/llm-context/US-9633997","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T18:51:32.463Z"}