Invention Grant
- Patent Title: Storage system and method for bad block recycling
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Application No.: US15583747Application Date: 2017-05-01
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Publication No.: US10229751B2Publication Date: 2019-03-12
- Inventor: Dudy Avraham , Ran Zamir , Idan Alrod , Eran Sharon
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Agency: Dickinson Wright PLLC
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G11C29/12 ; G11C16/14

Abstract:
A storage system is provided comprising a controller and a memory. The controller is configured to identify at least two physical blocks of memory that are designated as bad blocks because of at least one defective wordline; identify which wordlines in the at least two physical blocks of memory are defective; and create a logical block of memory from non-defective wordlines in the at least two physical blocks of memory, wherein some portions of the logical block are mapped to one of the at least two physical blocks of memory, and wherein other portions of the logical block are mapped to another one of the at least two physical blocks of memory.
Public/Granted literature
- US20180315487A1 STORAGE SYSTEM AND METHOD FOR BAD BLOCK RECYCLING Public/Granted day:2018-11-01
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