发明申请
- 专利标题: METHOD FOR ERROR TEST, RECORDATION AND REPAIR
- 专利标题(中): 错误测试,记录和修复方法
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申请号: US13098569申请日: 2011-05-02
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公开(公告)号: US20110209011A1公开(公告)日: 2011-08-25
- 发明人: Christian N. Mohr , Timothy B. Cowles
- 申请人: Christian N. Mohr , Timothy B. Cowles
- 申请人地址: US ID Boise
- 专利权人: MICRON TECHNOLOGY, INC.
- 当前专利权人: MICRON TECHNOLOGY, INC.
- 当前专利权人地址: US ID Boise
- 主分类号: G06F11/20
- IPC分类号: G06F11/20
摘要:
In a memory device, an on-die register is provided that is configured to store a row address as well as a column address of a memory cell that fails a test. Storing the row address frees testing from being limited to activating at one time only rows related to a common redundant segment. Storing the row address also guides repair using segmented redundancy. As an addition or alternative, information may be stored in an anti-fuse bank that is designed to provide access to a redundant cell but has not yet enabled access to that cell. If the information stored in the anti-fuse bank relates to the failure of the redundant cell, such information may be used to avoid repairing with that redundant cell.
公开/授权文献
- US08234527B2 Method for error test, recordation and repair 公开/授权日:2012-07-31
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