{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11521922","patent":{"patent_number":"US-11521922","title":"Printed circuit board","assignee":null,"inventors":[],"filing_date":"2021-03-26T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":20,"abstract":"A printed circuit board includes a first wiring structure including first insulating layers and first wiring layers; a second wiring structure disposed on the first wiring structure and including second insulating layers and second wiring layers; and a third wiring structure disposed on the second wiring structure and including a third insulating layer and a third wiring layer disposed on the third insulating layer. At least a portion of at least one of the second wiring layers has a fine pitch, relatively finer than those of the first wiring layers and the third wiring layer, wherein at least a portion of one of the first wiring layers is connected to at least a portion of the third wiring layer through a first wiring via, and wherein the first wiring via penetrates at least one of the first insulating layers, the second insulating layers, and the third insulating layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Printed circuit board","description":"A printed circuit board includes a first wiring structure including first insulating layers and first wiring layers; a second wiring structure disposed on the first wiring structure and including seco","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11521922","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-11521922","citation_suggestion":"Patentable. \"Printed circuit board\" (US-11521922). https://patentable.app/patents/US-11521922","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11521922","json":"https://patentable.app/api/llm-context/US-11521922","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:59:09.152Z"}