{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9646839","patent":{"patent_number":"US-9646839","title":"Ta based ohmic contact","assignee":null,"inventors":[],"filing_date":"2014-06-11T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":31,"abstract":"A method of forming an Ohmic contact including forming a Ta layer in a contact area of a barrier, forming a Ti layer on the first Ta layer, and forming an Al layer on the Ti layer, wherein the barrier layer comprises AlGaN having a 10% to 40% Al composition and a thickness in a range between 30 Å to 100 Å, and wherein the barrier layer is on a channel layer comprising GaN."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ta based ohmic contact","description":"A method of forming an Ohmic contact including forming a Ta layer in a contact area of a barrier, forming a Ti layer on the first Ta layer, and forming an Al layer on the Ti layer, wherein the barrier","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9646839","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-9646839","citation_suggestion":"Patentable. \"Ta based ohmic contact\" (US-9646839). https://patentable.app/patents/US-9646839","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9646839","json":"https://patentable.app/api/llm-context/US-9646839","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:23:57.562Z"}