{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8471237","patent":{"patent_number":"US-8471237","title":"Circuit board including a graphene film having contact region covering a recessed region and a patterned metal film covering the contact region and in direct electrical contact therewith, and device including same","assignee":null,"inventors":[],"filing_date":"2011-01-26T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":9,"abstract":"A circuit board having a graphene circuit according to the present invention includes: a base substrate; a patterned aluminum oxide film formed on the base substrate, the patterned aluminum oxide film having an average composition of Al2−xO3+x (where x is 0 or more), the patterned aluminum oxide film having a recessed region whose surface has one or more cone-shaped recesses therein; a graphene film preferentially grown only on the patterned aluminum oxide film, the graphene film having one or more graphene atomic layers, the graphene film having a contact region that covers the recessed region, the graphene film growing parallel to a flat surface of the recessed region and parallel to an inner wall surface of each cone-shaped recess of the recessed region; and a patterned metal film, a part of the patterned metal film covering and having electrical contact with the contact region, the patterned metal film filling each recess covered by the graphene film."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Circuit board including a graphene film having contact region covering a recessed region and a patterned metal film covering the contact region and in direct electrical contact therewith, and device including same","description":"A circuit board having a graphene circuit according to the present invention includes: a base substrate; a patterned aluminum oxide film formed on the base substrate, the patterned aluminum oxide film","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8471237","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-8471237","citation_suggestion":"Patentable. \"Circuit board including a graphene film having contact region covering a recessed region and a patterned metal film covering the contact region and in direct electrical contact therewith, and device including same\" (US-8471237). https://patentable.app/patents/US-8471237","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8471237","json":"https://patentable.app/api/llm-context/US-8471237","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T22:29:22.681Z"}