Invention Grant
- Patent Title: Word line control method, word line control circuit device and semiconductor memory
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Application No.: US17171307Application Date: 2021-02-09
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Publication No.: US11693584B2Publication Date: 2023-07-04
- Inventor: Liang Zhang
- Applicant: Changxin Memory Technologies, Inc.
- Applicant Address: CN Anhui
- Assignee: Changxin Memory Technologies, Inc.
- Current Assignee: Changxin Memory Technologies, Inc.
- Current Assignee Address: CN Hefei
- Agency: Sheppard Mullin Richter & Hampton
- Priority: CN 1811351053.2 2018.11.14 CN 1821876360.8 2018.11.14
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F3/06 ; G11C29/02 ; G11C29/14 ; G11C29/18 ; G11C29/46 ; G11C29/12

Abstract:
A word line control method, a word line control circuit device, and a semiconductor memory are provided. The method includes: acquiring a row address input signal; acquiring a test mode signal; performing logical and decoding operations on the row address input signal and the test mode signal to generate a row address control signal, wherein the row address control signal includes at least two valid activation signals; and simultaneously activating at least two non-adjacent word lines based on the at least two valid activation signals. The row address control signal obtained allows simultaneous activation of at least two non-adjacent word lines. Since none of any two non-adjacent word lines share a common contact area, a test will not be affected by the disconnection of a contact area or the presence of high impedance, thus improving test accuracy.
Public/Granted literature
- US20210165602A1 WORD LINE CONTROL METHOD, WORD LINE CONTROL CIRCUIT DEVICE AND SEMICONDUCTOR MEMORY Public/Granted day:2021-06-03
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