A Polynomial Based Valley Search Algorithm for 3D NAND Flash Memory
نویسندگان
چکیده
Valley search aims to find the updated optimal read reference voltage (OPT) that minimizes raw bit error rate (RBER). In this paper, a valley algorithm is proposed, which can accurately OPT after five operations through simple calculation based on cubic polynomial approximation, without traversing all voltages between two adjacent program states. Experimental results of TLC chip show applying scheme reduced 0.183%, within correcting capability LDPC (8763, 8272) code (ECC).
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ژورنال
عنوان ژورنال: IEICE Electronics Express
سال: 2022
ISSN: ['1349-2543', '1349-9467']
DOI: https://doi.org/10.1587/elex.19.20210535