发明名称 Non-volatile semiconductor memory segregating sequential data during garbage collection to reduce write amplification
摘要 A non-volatile semiconductor memory is disclosed comprising a memory device including a memory array having a plurality of blocks, each block comprising a plurality of memory segments. A plurality of logical block address (LBA) ranges are defined each identifying a plurality of LBA addresses, wherein at least one block is assigned to each LBA range. A plurality of write commands are received from a host, wherein each write command identifies at least one LBA. Data is written for each write command to the memory device. During a garbage collection operation, a memory segment storing valid write data is identified to be relocated, and the valid write data is relocated to a memory segment in a block of the corresponding LBA range.
申请公布号 US8316176(B1) 申请公布日期 2012.11.20
申请号 US20100707552 申请日期 2010.02.17
申请人 PHAN LAN D.;SURYABUDI DOMINIC S.;WESTERN DIGITAL TECHNOLOGIES, INC. 发明人 PHAN LAN D.;SURYABUDI DOMINIC S.
分类号 G06F12/00 主分类号 G06F12/00
代理机构 代理人
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