{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11289405","patent":{"patent_number":"US-11289405","title":"Semiconductor device","assignee":null,"inventors":[],"filing_date":"2020-07-27T00:00:00.000Z","publication_date":"2022-03-29T00:00:00.000Z","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"],"num_claims":4,"abstract":"There is provided a semiconductor device that includes a wiring layer having a main surface and a rear surface which face opposite sides in a thickness direction, a first insulating layer covering an entirety of the rear surface, a second insulating layer which is in contact with the main surface, a semiconductor element which faces the second insulating layer and is mounted on the wiring layer, and a sealing resin which is in contact with the second insulating layer and covers the semiconductor element, wherein surface roughness of the main surface is larger than surface roughness of the rear surface."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor device","description":"There is provided a semiconductor device that includes a wiring layer having a main surface and a rear surface which face opposite sides in a thickness direction, a first insulating layer covering an ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11289405","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-11289405","citation_suggestion":"Patentable. \"Semiconductor device\" (US-11289405). https://patentable.app/patents/US-11289405","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11289405","json":"https://patentable.app/api/llm-context/US-11289405","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:24:21.057Z"}