{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11495280","patent":{"patent_number":"US-11495280","title":"Semiconductor memory devices and memory systems including the same","assignee":null,"inventors":[],"filing_date":"2021-08-11T00:00:00.000Z","publication_date":"2022-11-08T00:00:00.000Z","cpc_codes":["G11C","G11C","G11C","G11C","G11C","G11C","G11C","G11C","G11C","H01L","H01L","H01L","G11C","G11C","H01L","H01L","H01L","H01L","H01L"],"num_claims":20,"abstract":"A semiconductor memory device includes an external resistor provided on a board and a plurality of memory dies mounted on the board, designated as a master die and slave dies. The memory dies are commonly connected to the external resistor. The master die performs a first impedance calibration operation during an initialization sequence of the semiconductor memory device and stores, in a first register set therein, first calibration data, a first voltage and a first temperature. Each of the slave dies, after the first impedance calibration operation is completed, performs a second impedance calibration operation during the initialization sequence and stores, in a second register set therein, second calibration data associated with the second impedance calibration operation and offset data corresponding to a difference between the first calibration data and the second calibration data."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor memory devices and memory systems including the same","description":"A semiconductor memory device includes an external resistor provided on a board and a plurality of memory dies mounted on the board, designated as a master die and slave dies. The memory dies are comm","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11495280","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-11495280","citation_suggestion":"Patentable. \"Semiconductor memory devices and memory systems including the same\" (US-11495280). https://patentable.app/patents/US-11495280","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11495280","json":"https://patentable.app/api/llm-context/US-11495280","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:05:59.222Z"}