Invention Grant
- Patent Title: Flexible row redundancy system
- Patent Title (中): 灵活的行冗余系统
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Application No.: US12131307Application Date: 2008-06-02
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Publication No.: US07774660B2Publication Date: 2010-08-10
- Inventor: Louis L. Hsu , Gregory J. Fredeman , Rajiv V. Joshi , Toshiaki Kirihata
- Applicant: Louis L. Hsu , Gregory J. Fredeman , Rajiv V. Joshi , Toshiaki Kirihata
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Brian P. Verminski
- Main IPC: G11C29/00
- IPC: G11C29/00

Abstract:
A row redundancy system is provided for replacing faulty wordlines of a memory array having a plurality of banks. The row redundancy system includes a remote fuse bay storing at least one faulty address corresponding to a faulty wordline of the memory array; a row fuse array for storing row fuse information corresponding to at least one bank of the memory array; and a copy logic module for copying at least one faulty address stored in the remote fuse bay into the row fuse array; wherein the copy logic module is programmed to copy the at least one faulty address into the row fuse information stored in the row fuse array corresponding to a predetermined number of banks in accordance with a selectable repair field size.
Public/Granted literature
- US20080229144A1 FLEXIBLE ROW REDUNDANCY SYSTEM Public/Granted day:2008-09-18
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