{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9790600","patent":{"patent_number":"US-9790600","title":"Etching agent for copper or copper alloy","assignee":null,"inventors":[],"filing_date":"2015-11-02T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","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"],"num_claims":16,"abstract":"Object is to provide an etching solution which generates less foam and can etch copper or copper alloy at high selectivity when used in a step of etching copper or 5 copper alloy in an electronic substrate having both of copper or copper alloy and nickel. The etching solution to be used in a step of selectively etching copper or copper alloy in an electronic substrate having both of copper or copper alloy and nickel has, as essential components thereof, (A) a linear alkanolamine, (B) a chelating agent having an acid group in the molecule thereof, and (C) hydrogen peroxide."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Etching agent for copper or copper alloy","description":"Object is to provide an etching solution which generates less foam and can etch copper or copper alloy at high selectivity when used in a step of etching copper or 5 copper alloy in an electronic subs","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9790600","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-9790600","citation_suggestion":"Patentable. \"Etching agent for copper or copper alloy\" (US-9790600). https://patentable.app/patents/US-9790600","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9790600","json":"https://patentable.app/api/llm-context/US-9790600","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:58:42.136Z"}