{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9722071","patent":{"patent_number":"US-9722071","title":"Trench power transistor","assignee":null,"inventors":[],"filing_date":"2016-01-25T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L"],"num_claims":11,"abstract":"A trench power transistor is provided. The trench gate structure of the trench power transistor includes at least one insulting layer, a gate electrode, and a shielding electrode, which are disposed in a trench of an epitaxial layer. The insulating layer formed on an inner wall of the active trench to isolate an epitaxial layer from the gate and the shielding electrodes. The insulating layer includes a first dielectric layer, a second dielectric layer and a third dielectric layer. The first and second dielectric layers extend from an upper portion of the inner wall to a lower portion of the inner wall of the active trench. The third dielectric layer is formed on the second dielectric layer and located at the lower portion of the active trench. A portion of the second dielectric layer is interposed between the first and third dielectric layers."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Trench power transistor","description":"A trench power transistor is provided. The trench gate structure of the trench power transistor includes at least one insulting layer, a gate electrode, and a shielding electrode, which are disposed i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9722071","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-9722071","citation_suggestion":"Patentable. \"Trench power transistor\" (US-9722071). https://patentable.app/patents/US-9722071","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9722071","json":"https://patentable.app/api/llm-context/US-9722071","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:22:36.195Z"}