{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11251131","patent":{"patent_number":"US-11251131","title":"Copper contact plugs with barrier layers","assignee":null,"inventors":[],"filing_date":"2020-06-17T00:00:00.000Z","publication_date":"2022-02-15T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":20,"abstract":"A device includes a conductive layer including a bottom portion, and a sidewall portion over the bottom portion, wherein the sidewall portion is connected to an end of the bottom portion. An aluminum-containing layer overlaps the bottom portion of the conductive layer, wherein a top surface of the aluminum-containing layer is substantially level with a top edge of the sidewall portion of the conductive layer. An aluminum oxide layer is overlying the aluminum-containing layer. A copper-containing region is over the aluminum oxide layer, and is spaced apart from the aluminum-containing layer by the aluminum oxide layer. The copper-containing region is electrically coupled to the aluminum-containing layer through the top edge of the sidewall portion of the conductive layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Copper contact plugs with barrier layers","description":"A device includes a conductive layer including a bottom portion, and a sidewall portion over the bottom portion, wherein the sidewall portion is connected to an end of the bottom portion. An aluminum-","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11251131","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-11251131","citation_suggestion":"Patentable. \"Copper contact plugs with barrier layers\" (US-11251131). https://patentable.app/patents/US-11251131","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11251131","json":"https://patentable.app/api/llm-context/US-11251131","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:57:15.705Z"}