MEMORY DEVICE SKIPPING REFRESH OPERATION AND OPERATION METHOD THEREOF

    公开(公告)号:US20220246200A1

    公开(公告)日:2022-08-04

    申请号:US17474666

    申请日:2021-09-14

    Abstract: Provided are a memory device skipping a refresh operation and an operating method thereof. The memory device includes a memory cell array including N rows; a refresh controller configured to control a refresh operation for the N rows of the memory cell array based on a refresh command; and an access information storage circuit including a plurality of registers configured to store flag information corresponding to each of the N rows, wherein a first value indicates rows that have been accessed, and a second value indicates rows that have not been accessed. The refresh controller is further configured to control whether the refresh operation is performed for a first row of the N rows at a refresh timing for the first row based on the flag information corresponding to the first row

    ELECTRONIC DEVICE FOR OPTIMIZING SEMICONDUCTOR CHARACTERISTICS BASED ON PLACKETT-BURMAN DESIGN AND GENETIC ALGORITHM, AND OPERATING METHOD THEREOF

    公开(公告)号:US20250165685A1

    公开(公告)日:2025-05-22

    申请号:US18952627

    申请日:2024-11-19

    Abstract: An electronic device includes a Plackett-Burman design (PBD) execution circuit, a genetic algorithm (GA) execution circuit, and a control circuit. The PBD execution circuit is configured to generate an initial design of experiment (DOE) set including a plurality of initial cases regarding semiconductor characteristics of a memory device of an external device. The GA execution circuit is configured to convert a previous generation DOE set to a next generation DOE set. The control circuit is configured to transmit the initial DOE set to the external device, receive, from the external device, an initial characteristic evaluation, generate a starting DOE set based on the initial characteristic evaluation, and control a genetic algorithm to be performed with an experimental result of the starting DOE set as an input. Each of the plurality of initial cases corresponds to a combination of a plurality of setting values influencing the semiconductor characteristics.

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