Invention Grant
- Patent Title: Semiconductor memory device
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Application No.: US15830311Application Date: 2017-12-04
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Publication No.: US10020055B2Publication Date: 2018-07-10
- Inventor: Kunifumi Suzuki , Kazuhiko Yamamoto
- Applicant: TOSHIBA MEMORY CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Main IPC: G11C13/00
- IPC: G11C13/00

Abstract:
According to embodiments, a semiconductor memory device includes a first electrode, a second electrode, a memory cell, and a control circuit. The memory cell is provided between the first electrode and the second electrode and includes a metal film and a resistance change film. The control circuit applies a voltage between the first electrode and the second electrode to perform transition of a resistive state of the memory cell. The control circuit performs a first writing operation by applying a first pulse having a voltage of a first polarity to the memory cell and applying a second pulse having a voltage of the first polarity smaller than the voltage of the first pulse to the memory cell continuously after applying the first pulse.
Public/Granted literature
- US20180130529A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2018-05-10
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