{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11948800","patent":{"patent_number":"US-11948800","title":"Semiconductor device having work function metal stack","assignee":null,"inventors":[],"filing_date":"2022-12-14T00:00:00.000Z","publication_date":"2024-04-02T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":20,"abstract":"A device includes a pair of gate spacers on a substrate, and a gate structure on the substrate and between the gate spacers. The gate structure includes an interfacial layer, a metal oxide layer, a nitride-containing layer, a tungsten-containing layer, and a metal compound layer. The interfacial layer is over the substrate. The metal oxide layer is over the interfacial layer. The nitride-containing layer is over the metal oxide layer. The tungsten-containing layer is over the nitride-containing layer. The metal compound layer is over the tungsten-containing layer. The metal compound layer has a different material than a material of the tungsten-containing layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor device having work function metal stack","description":"A device includes a pair of gate spacers on a substrate, and a gate structure on the substrate and between the gate spacers. The gate structure includes an interfacial layer, a metal oxide layer, a ni","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11948800","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-11948800","citation_suggestion":"Patentable. \"Semiconductor device having work function metal stack\" (US-11948800). https://patentable.app/patents/US-11948800","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11948800","json":"https://patentable.app/api/llm-context/US-11948800","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:24:30.153Z"}