Invention Grant
US07802132B2 Technique to improve and extend endurance and reliability of multi-level memory cells in a memory device
有权
提高和延长存储器件中多级存储单元的耐久性和可靠性的技术
- Patent Title: Technique to improve and extend endurance and reliability of multi-level memory cells in a memory device
- Patent Title (中): 提高和延长存储器件中多级存储单元的耐久性和可靠性的技术
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Application No.: US11840421Application Date: 2007-08-17
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Publication No.: US07802132B2Publication Date: 2010-09-21
- Inventor: Ravi Annavajjhala , Brian A. Dargel , Hiroyuki Kuwahara , Touhid M. Raza
- Applicant: Ravi Annavajjhala , Brian A. Dargel , Hiroyuki Kuwahara , Touhid M. Raza
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agent Rita M. Wisor
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A novel technique to improve and extend endurance and reliability of a memory device utilizing multi-level cells is disclosed. As a memory device ages, it's reliability deteriorates. Prior to the memory device becoming completely unreliable, the memory device transitions from a multi-level cell operating mode to a reduced capacity operating mode. When operating in the multi-level cell mode, the memory system stores multiple bits per cell. The memory system stores fewer bits per cell when operating in the reduced capacity. The transition between modes is achieved by setting all bits of a particular memory page to a specific value, for example, either a logic “1” or a logic “0.”
Public/Granted literature
- US20090046509A1 TECHNIQUE TO IMPROVE AND EXTEND ENDURANCE AND RELIABILITY OF MULTI-LEVEL MEMORY CELLS IN A MEMORY DEVICE Public/Granted day:2009-02-19
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