Invention Grant
- Patent Title: Identifying a failing group of memory cells in a multi-plane storage operation
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Application No.: US15409583Application Date: 2017-01-19
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Publication No.: US10248515B2Publication Date: 2019-04-02
- Inventor: Charan Srinivasan , Eyal Gurgi
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kligler & Associates
- Main IPC: G06F11/20
- IPC: G06F11/20 ; G11C16/16 ; G11C16/10 ; G11C16/34 ; G11C16/26

Abstract:
An apparatus includes an interface and storage circuitry. The interface is configured to communicate with a memory that includes multiple memory cells arranged in multiple planes that each includes one or more blocks of the memory cells. The storage circuitry is configured to apply a multi-plane storage operation to multiple blocks simultaneously across the respective planes. In response to detecting that the multi-plane storage operation has failed, the storage circuitry is configured to apply a single-plane storage operation to one or more of the blocks that were accessed in the multi-plane storage operation, including a given block, and to identify the given block as a bad block if the single-plane operation applied to the given block fails. The storage circuitry is further configured to store data in the blocks that were accessed in the multi-plane operation but were not identified as bad blocks.
Public/Granted literature
- US20180203774A1 IDENTIFYING A FAILING GROUP OF MEMORY CELLS IN A MULTI-PLANE STORAGE OPERATION Public/Granted day:2018-07-19
Information query