{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9804498","patent":{"patent_number":"US-9804498","title":"Filtering lead from photoresist stripping solution","assignee":null,"inventors":[],"filing_date":"2014-06-09T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":20,"abstract":"A photoresist stripping tool includes a reservoir configured to contain photoresist stripping solution and a Pb filter comprising a filter element with Tin (Sn) exterior surfaces. A semiconductor wafer fabrication system includes a semiconductor wafer attached to the photoresist stripping tool that strips photoresist from the semiconductor wafer. A photoresist stripping processes includes stripping photoresist from a leaded semiconductor wafer with photoresist stripping solution within the photoresist stripping tool, filtering Lead Pb from the photoresist stripping solution with the Pb filter, and stripping photoresist from a lead-free semiconductor wafer with the filtered photoresist stripping solution."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Filtering lead from photoresist stripping solution","description":"A photoresist stripping tool includes a reservoir configured to contain photoresist stripping solution and a Pb filter comprising a filter element with Tin (Sn) exterior surfaces. A semiconductor wafe","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9804498","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-9804498","citation_suggestion":"Patentable. \"Filtering lead from photoresist stripping solution\" (US-9804498). https://patentable.app/patents/US-9804498","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9804498","json":"https://patentable.app/api/llm-context/US-9804498","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:40:25.481Z"}