Invention Grant
- Patent Title: Hardware and software programmable fuses for memory repair
- Patent Title (中): 硬件和软件可编程保险丝用于内存修复
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Application No.: US11447495Application Date: 2006-06-06
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Publication No.: US07498838B2Publication Date: 2009-03-03
- Inventor: Esin Terzioglu , Gil I. Winograd
- Applicant: Esin Terzioglu , Gil I. Winograd
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H03K19/173
- IPC: H03K19/173

Abstract:
The present invention relates to a system and method for increasing the manufacturing yield of a plurality of memory cells used in cell arrays. A programmable fuse, having both hardware and software elements, is used with the plurality of memory cells to indicate that at least one memory cell is unusable and should be shifted out of operation. The software programmable element includes a programmable register adapted to shift in an appropriate value indicating that at least one of the memory cells is flawed. The hardware element includes a fuse gated with the programmable register. Shifting is indicated either by software programmable fuse or hard fuse. Soft fuse registers may be chained together forming a shift register.
Public/Granted literature
- US20060220680A1 Hardware and software programmable fuses for memory repair Public/Granted day:2006-10-05
Information query
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