Invention Grant
- Patent Title: Optimizing fuseROM usage for memory repair
- Patent Title (中): 优化fuseROM用于内存修复
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Application No.: US14038306Application Date: 2013-09-26
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Publication No.: US09053799B2Publication Date: 2015-06-09
- Inventor: Devanathan Varadarajan , Harsharaj Ellur
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; Frank D. Cimino
- Priority: IN528/CHE/2013 20130702
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G11C17/16 ; G11C17/18 ; G11C29/44

Abstract:
A memory repair system in an integrated circuit (IC) that optimizes the fuseROM used for memory repair. The IC includes a plurality of memory wrappers. Each memory wrapper includes a memory block with a fuse register and a bypass register. The bypass register has a bypass data that indicates a defective memory wrapper of the plurality of memory wrappers. A fuseROM controller is coupled to the plurality of memory wrappers. A memory bypass chain links the bypass registers in the plurality of memory wrappers with the fuseROM controller. The fuseROM controller loads the bypass data in the memory bypass chain. A memory data chain links the fuse registers in the plurality of memory wrappers with the fuseROM controller. The memory data chain is re-configured to link the fuse registers in a set of defective memory wrappers of the plurality of memory wrappers responsive to the bypass data loaded in the memory bypass chain.
Public/Granted literature
- US20150012786A1 OPTIMIZING fuseROM USAGE FOR MEMORY REPAIR Public/Granted day:2015-01-08
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