Invention Grant
- Patent Title: Memory device with redundancy for page-based repair
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Application No.: US17823740Application Date: 2022-08-31
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Publication No.: US12062407B2Publication Date: 2024-08-13
- Inventor: Alan John Wilson , Donald M. Morgan , John David Porter
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G11C29/54
- IPC: G11C29/54 ; G11C29/00

Abstract:
Apparatus and methods for page-based soft post package repair are disclosed. Based on data stored in a storage element, an address may be decoded to a prime row, a row-based redundant row, or a page-based redundant row. A match logic circuit may determine whether the address corresponds to a defective prime row and generate a match signal. A decoder can select a redundant row to be accessed instead of a prime row in response to the match signal indicating that the address data corresponding to the address to be accessed matches defective address data stored in a volatile memory. A page-based redundant row allows for page-by-page substitution for defective memory, allowing functional portions of memory to continue to be used.
Public/Granted literature
- US20240071558A1 MEMORY DEVICE WITH REDUNDANCY FOR PAGE-BASED REPAIR Public/Granted day:2024-02-29
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