Invention Grant
- Patent Title: Systems and methods for performing row hammer refresh operations in redundant memory
-
Application No.: US15855514Application Date: 2017-12-27
-
Publication No.: US10410710B2Publication Date: 2019-09-10
- Inventor: Joosang Lee
- 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: Fletcher Yoder, P.C.
- Main IPC: G11C11/406
- IPC: G11C11/406 ; G11C11/403 ; G11C11/408

Abstract:
Steering logic circuitry includes bit-flipping logic that determines a first neighboring redundant word line adjacent to a redundant word line of a memory bank, which also includes normal word lines. Redundant word lines include main word lines, each of which includes paired word lines. Each paired word line includes two redundant word lines. The steering logic circuitry also includes border determination logic that determines whether the redundant word line is on a border between the redundant word lines and an end of the memory bank or the normal word lines. The steering logic circuitry further includes main word line steering logic that determines a neighboring main word line that a second neighboring redundant word line adjacent to the redundant word line is disposed in, and paired word line steering logic that determines a neighboring paired word line that the second neighboring redundant word line is disposed in.
Public/Granted literature
- US20190198090A1 SYSTEMS AND METHODS FOR PERFORMING ROW HAMMER REFRESH OPERATIONS IN REDUNDANT MEMORY Public/Granted day:2019-06-27
Information query