{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8461586","patent":{"patent_number":"US-8461586","title":"Semiconductor device","assignee":null,"inventors":[],"filing_date":"2011-07-01T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G11C","G11C"],"num_claims":15,"abstract":"A semiconductor device with a novel structure in which stored data can be retained even when power is not supplied, and does not have a limitation on the number of write cycles. The semiconductor device includes a memory cell including a first transistor, a second transistor, and an insulating layer placed between a source region or a drain region of the first transistor and a channel formation region of the second transistor. The first transistor and the second transistor are provided to at least partly overlap with each other. The insulating layer and a gate insulating layer of the second transistor satisfy the following formula: (ta/tb)×(∈ra/∈rb)<0.1, where ta represents the thickness of the gate insulating layer, tb represents the thickness of the insulating layer, ∈ra represents the dielectric constant of the gate insulating layer, and ∈rb represents the dielectric constant of the insulating layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor device","description":"A semiconductor device with a novel structure in which stored data can be retained even when power is not supplied, and does not have a limitation on the number of write cycles. The semiconductor devi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8461586","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-8461586","citation_suggestion":"Patentable. \"Semiconductor device\" (US-8461586). https://patentable.app/patents/US-8461586","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8461586","json":"https://patentable.app/api/llm-context/US-8461586","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:56:01.528Z"}