发明申请
- 专利标题: SOFT INFORMATION MODULE
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申请号: US15882937申请日: 2018-01-29
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公开(公告)号: US20180151222A1公开(公告)日: 2018-05-31
- 发明人: Richard David Barndt , Xinde Hu , Anthony Dwayne Weathers
- 申请人: HGST Technologies Santa Ana, Inc.
- 主分类号: G11C11/56
- IPC分类号: G11C11/56 ; H03M13/11 ; G06F11/10 ; G11C16/34 ; G11C16/08 ; G06F11/08 ; G06F11/00
摘要:
A soft information module is coupled between one or more flash memory devices and a decoder. The soft information module receives a putative value of one or more memory cells of the one or more flash memory devices based on a read of the one or more memory cells at an initial read level, and one or more respective indicators of whether the putative value was read at one or more respective different read levels offset from the initial read level, and receives a page indicator for the read. The soft information module determines a cell program region for the read based on the putative value, the one or more respective indicators, and the page indicator, identifies a predetermined confidence value for the region, and provides the confidence value to the decoder for association with the putative value, the confidence value being representative of a likelihood that the one or more memory cells was programmed to the putative value.
公开/授权文献
- US10510405B2 Soft information module 公开/授权日:2019-12-17
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