Invention Grant
US07663950B2 Method for column redundancy using data latches in solid-state memories
有权
使用固态存储器中的数据锁存器进行列冗余的方法
- Patent Title: Method for column redundancy using data latches in solid-state memories
- Patent Title (中): 使用固态存储器中的数据锁存器进行列冗余的方法
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Application No.: US12163017Application Date: 2008-06-27
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Publication No.: US07663950B2Publication Date: 2010-02-16
- Inventor: Farookh Moogat , Raul-Adrian Cernea , Shou-Chang Tsao , Tai-Yuan Tseng
- Applicant: Farookh Moogat , Raul-Adrian Cernea , Shou-Chang Tsao , Tai-Yuan Tseng
- Applicant Address: US CA Milpitas
- Assignee: Sandisk Corporation
- Current Assignee: Sandisk Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Davis Wright Tremaine LLP
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G11C7/10

Abstract:
A memory has defective locations in its user portion replaceable by redundant locations in a redundant portion. Data latches in the user and redundant portions allow data sensed from or to be written to a memory to be exchanged with a data bus. A defective location latching redundancy scheme assumes the column circuits including data latches for defective columns to be still useable. The data latches for the defective columns are used to buffer corresponding redundant data that are normally accessible from their data latches in the redundant portion. In this way both the user and redundant data are available from the user data latches, and streaming data into or out of the data bus is simplified and performance improved.
Public/Granted literature
- US20080266957A1 Method for Column Redundancy Using Data Latches in Solid-State Memories Public/Granted day:2008-10-30
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