{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8508638","patent":{"patent_number":"US-8508638","title":"3T pixel for CMOS image sensors with low reset noise and low dark current generation utilizing parametric reset","assignee":null,"inventors":[],"filing_date":"2005-03-14T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["H04N","H04N"],"num_claims":12,"abstract":"The present invention describes in detail the solid-state image sensor, specifically the image sensors pixel that has three transistors, high sensitivity, low reset noise, and low dark current. Low reset noise is achieved by parametrically changing the voltage dependent capacitance of the charge detection node in such a manner that during reset the charge detection node capacitance is low while during sensing and integration cycles the charge detection node capacitance is high. This feature thus results in high dynamic range, which is important for sensors using very small pixels. The low dark current generation is achieved by quenching the interface states by placing a p+ implant near the silicon-silicon dioxide interface."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"3T pixel for CMOS image sensors with low reset noise and low dark current generation utilizing parametric reset","description":"The present invention describes in detail the solid-state image sensor, specifically the image sensors pixel that has three transistors, high sensitivity, low reset noise, and low dark current. Low re","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8508638","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-8508638","citation_suggestion":"Patentable. \"3T pixel for CMOS image sensors with low reset noise and low dark current generation utilizing parametric reset\" (US-8508638). https://patentable.app/patents/US-8508638","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8508638","json":"https://patentable.app/api/llm-context/US-8508638","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:22:56.119Z"}