公开(公告)号：US20230033277A1

公开(公告)日：2023-02-02

申请号：US17390425

申请日：2021-07-30

Applicant: Intel Corporation

Inventor： William K. Waller ,  Dhruval J. Patel ,  Xiannan Di

IPC: G11C29/44 ,  G11C29/18 ,  G11C29/14 ,  G11C29/00

Abstract: Techniques for repair of a memory die are disclosed. In the illustrative embodiment, a faulty wordline (or bitline) can be remapped to a redundant wordline on the same layer by entering the address of the faulty wordline in a repair table for the layer. If there are more faulty wordlines on a layer than redundant wordlines available on the layer, the faulty wordlines can be remapped to redundant wordlines on a different layer, and the address of the faulty wordline can be placed in a repair table for the different layer. When a memory operation is received, the wordline address for the memory operation is checked against the repair tables to check if it remapped.

公开(公告)号：US12277985B2

公开(公告)日：2025-04-15

申请号：US17390425

申请日：2021-07-30

Applicant: Intel Corporation

Inventor： William K. Waller ,  Dhruval J. Patel ,  Xiannan Di

IPC: G11C29/00 ,  G11C29/14 ,  G11C29/18 ,  G11C29/44 ,  G11C29/12

Abstract: Techniques for repair of a memory die are disclosed. In the illustrative embodiment, a faulty wordline (or bitline) can be remapped to a redundant wordline on the same layer by entering the address of the faulty wordline in a repair table for the layer. If there are more faulty wordlines on a layer than redundant wordlines available on the layer, the faulty wordlines can be remapped to redundant wordlines on a different layer, and the address of the faulty wordline can be placed in a repair table for the different layer. When a memory operation is received, the wordline address for the memory operation is checked against the repair tables to check if it remapped.