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3D NAND DATA MAPPING ENABLING FAST READ MULTI-LEVEL 3D NAND TO IMPROVE LIFETIME CAPACITY
3D NAND DATA MAPPING ENABLING FAST READ MULTI-LEVEL 3D NAND TO IMPROVE LIFETIME CAPACITY
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机译：3D NAND数据映射可实现快速读取多级3D NAND，以提高使用寿命
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摘要
In this disclosure, a data mapping based on a three-dimensional lattice with an improved total transfer rate (i.e., lifetime capacity) with low read latency is disclosed. During recording, storage locations are recorded multiple times prior to erasure. Specifically, in the case of the first recording, there are 4/3 bits per cell available for recording, which is about 10.67 kB per cell and is used for data storage. Then, for the second write, there is one bit per cell, which is 8 kB per cell for data storage. Considering a block with 128 different cells and recording 32 kB of data, the first write is represented by 42.66 data records, while the second record is represented by 32 records for a total of 74.66 records. Previously, the number of records for 32 kB would be 64 records. Thus, by writing twice before erasing, more data can be stored.
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