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1.
公开(公告)号:US20180366197A1
公开(公告)日:2018-12-20
申请号:US15997717
申请日:2018-06-05
Applicant: Winbond Electronics Corp.
Inventor: Ping-Kun Wang , Shao-Ching Liao , Ming-Che Lin , Min-Chih Wei , Chuan-Sheng Chou
IPC: G11C13/00
CPC classification number: G11C13/0097 , G11C13/0007 , G11C13/0026 , G11C13/0028 , G11C13/004 , G11C13/0069 , G11C2013/0045 , G11C2013/009 , G11C2213/15 , G11C2213/31 , G11C2213/52 , H01L45/1233 , H01L45/1253 , H01L45/143 , H01L45/146 , H01L45/147
Abstract: A resistive memory and a resistance window recovery method for a resistive memory cell thereof are provided. During a first period, an over reset voltage difference is applied between a top electrode and a bottom electrode of the resistive memory cell, wherein the over reset voltage difference falls in a reset complementary switching (reset-CS) voltage range of the resistive memory cell. During a second period, a set voltage difference is applied between the top electrode and the bottom electrode of the resistive memory cell to increase a compliance current of the resistive memory cell. During a third period, a reset operation is performed on the resistive memory cell.
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公开(公告)号:US20220068382A1
公开(公告)日:2022-03-03
申请号:US17458559
申请日:2021-08-27
Applicant: Winbond Electronics Corp.
Inventor: Ming-Che Lin , Min-Chih Wei , Ping-Kun Wang , Yu-Ting Chen , Chih-Cheng Fu , Chang-Tsung Pai
IPC: G11C13/00
Abstract: A resistive memory apparatus including a memory cell array, at least one dummy transistor and a control circuit is provided. The memory cell array includes a plurality of memory cells. Each of the memory cells includes a resistive switching element. The dummy transistor is electrically isolated from the resistive switching element. The control circuit is coupled to the memory cell array and the dummy transistor. The control circuit is configured to provide a first bit line voltage, a source line voltage and a word line voltage to the dummy transistor to drive the dummy transistor to output a saturation current. The control circuit is further configured to determine a value of a second bit line voltage for driving the memory cells according to the saturation current. In addition, an operating method and a memory cell array of the resistive memory apparatus are also provided.
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公开(公告)号:US20210057640A1
公开(公告)日:2021-02-25
申请号:US16991055
申请日:2020-08-12
Applicant: Winbond Electronics Corp.
Inventor: Wen-Chia Ou , Chih-Chao Huang , Min-Chih Wei , Yu-Ting Chen , Chi-Ching Liu
Abstract: A method of fabricating a semiconductor device includes the following steps. A plurality of doped regions are formed in a substrate. A first dielectric layer is formed on the substrate. A plurality of first contacts and second contacts are formed in the first dielectric layer to be connected to the plurality of doped regions. A memory element is formed on the first dielectric layer. The memory element is electrically connected to the second contact. A second dielectric layer is formed on the first dielectric layer. The second dielectric layer surrounds the memory element. A conductive line is formed in the second dielectric layer. A top surface of the conductive line is at a same level as a top surface of the memory element, and the conductive line is electrically connected to the plurality of first contacts.
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公开(公告)号:US20250072295A1
公开(公告)日:2025-02-27
申请号:US18945580
申请日:2024-11-13
Applicant: Winbond Electronics Corp.
Inventor: Wen-Chia Ou , Chih-Chao Huang , Min-Chih Wei , Yu-Ting Chen , Chi-Ching Liu
Abstract: A method of fabricating a semiconductor device includes the following steps. A plurality of doped regions are formed in a substrate. A first dielectric layer is formed on the substrate. A plurality of first contacts and second contacts are formed in the first dielectric layer to be connected to the plurality of doped regions. A memory element is formed on the first dielectric layer. The memory element is electrically connected to the second contact. A second dielectric layer is formed on the first dielectric layer. The second dielectric layer surrounds the memory element. A conductive line is formed in the second dielectric layer. A top surface of the conductive line is at a same level as a top surface of the memory element, and the conductive line is electrically connected to the plurality of first contacts.
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公开(公告)号:US12193337B2
公开(公告)日:2025-01-07
申请号:US16991055
申请日:2020-08-12
Applicant: Winbond Electronics Corp.
Inventor: Wen-Chia Ou , Chih-Chao Huang , Min-Chih Wei , Yu-Ting Chen , Chi-Ching Liu
Abstract: A method of fabricating a semiconductor device includes the following steps. A plurality of doped regions are formed in a substrate. A first dielectric layer is formed on the substrate. A plurality of first contacts and second contacts are formed in the first dielectric layer to be connected to the plurality of doped regions. A memory element is formed on the first dielectric layer. The memory element is electrically connected to the second contact. A second dielectric layer is formed on the first dielectric layer. The second dielectric layer surrounds the memory element. A conductive line is formed in the second dielectric layer. A top surface of the conductive line is at a same level as a top surface of the memory element, and the conductive line is electrically connected to the plurality of first contacts.
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公开(公告)号:US11908516B2
公开(公告)日:2024-02-20
申请号:US17458559
申请日:2021-08-27
Applicant: Winbond Electronics Corp.
Inventor: Ming-Che Lin , Min-Chih Wei , Ping-Kun Wang , Yu-Ting Chen , Chih-Cheng Fu , Chang-Tsung Pai
CPC classification number: G11C13/0038 , G11C13/004 , G11C13/0026 , G11C13/0028 , G11C2213/79
Abstract: A resistive memory apparatus including a memory cell array, at least one dummy transistor and a control circuit is provided. The memory cell array includes a plurality of memory cells. Each of the memory cells includes a resistive switching element. The dummy transistor is electrically isolated from the resistive switching element. The control circuit is coupled to the memory cell array and the dummy transistor. The control circuit is configured to provide a first bit line voltage, a source line voltage and a word line voltage to the dummy transistor to drive the dummy transistor to output a saturation current. The control circuit is further configured to determine a value of a second bit line voltage for driving the memory cells according to the saturation current. In addition, an operating method and a memory cell array of the resistive memory apparatus are also provided.
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公开(公告)号:US20240233819A9
公开(公告)日:2024-07-11
申请号:US18399609
申请日:2023-12-28
Applicant: Winbond Electronics Corp.
Inventor: Ming-Che Lin , Min-Chih Wei , Ping-Kun Wang , Yu-Ting Chen , Chih-Cheng Fu , Chang-Tsung Pai
IPC: G11C13/00
CPC classification number: G11C13/0038 , G11C13/0026 , G11C13/0028 , G11C13/004 , G11C2213/79
Abstract: A resistive memory apparatus including a memory cell array, at least one dummy transistor and a control circuit is provided. The memory cell array includes a plurality of memory cells. Each of the memory cells includes a resistive switching element. The dummy transistor is electrically isolated from the resistive switching element. The control circuit is coupled to the memory cell array and the dummy transistor. The control circuit is configured to provide a first bit line voltage, a source line voltage and a word line voltage to the dummy transistor to drive the dummy transistor to output a saturation current. The control circuit is further configured to determine a value of a second bit line voltage for driving the memory cells according to the saturation current. In addition, an operating method and a memory cell array of the resistive memory apparatus are also provided.
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公开(公告)号:US20240135990A1
公开(公告)日:2024-04-25
申请号:US18399609
申请日:2023-12-28
Applicant: Winbond Electronics Corp.
Inventor: Ming-Che Lin , Min-Chih Wei , Ping-Kun Wang , Yu-Ting Chen , Chih-Cheng Fu , Chang-Tsung Pai
IPC: G11C13/00
CPC classification number: G11C13/0038 , G11C13/0026 , G11C13/0028 , G11C13/004 , G11C2213/79
Abstract: A resistive memory apparatus including a memory cell array, at least one dummy transistor and a control circuit is provided. The memory cell array includes a plurality of memory cells. Each of the memory cells includes a resistive switching element. The dummy transistor is electrically isolated from the resistive switching element. The control circuit is coupled to the memory cell array and the dummy transistor. The control circuit is configured to provide a first bit line voltage, a source line voltage and a word line voltage to the dummy transistor to drive the dummy transistor to output a saturation current. The control circuit is further configured to determine a value of a second bit line voltage for driving the memory cells according to the saturation current. In addition, an operating method and a memory cell array of the resistive memory apparatus are also provided.
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公开(公告)号:US10658036B2
公开(公告)日:2020-05-19
申请号:US16045749
申请日:2018-07-26
Applicant: Winbond Electronics Corp.
Inventor: Shao-Ching Liao , Ping-Kun Wang , Ming-Che Lin , Min-Chih Wei , Chia-Hua Ho , Chien-Min Wu
Abstract: A forming method of a resistive memory device is provided. The forming method includes: conducting a forming procedure to apply a forming voltage to the resistive memory device such that the resistive memory device changes from a high resistive state to a low resistive state and measuring a first current of the resistive memory device; performing a thermal step on the resistive memory device and measuring a second current of the resistive memory device; and comparing the second current to the first current and determining to apply a first voltage signal or a second voltage signal to the resistive memory device or to finish the forming procedure according to a comparison result of the first current and the second current. In addition, a memory storage apparatus including a resistive memory device is also provided.
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公开(公告)号:US10475513B2
公开(公告)日:2019-11-12
申请号:US15997717
申请日:2018-06-05
Applicant: Winbond Electronics Corp.
Inventor: Ping-Kun Wang , Shao-Ching Liao , Ming-Che Lin , Min-Chih Wei , Chuan-Sheng Chou
Abstract: A resistive memory and a resistance window recovery method for a resistive memory cell thereof are provided. During a first period, an over reset voltage difference is applied between a top electrode and a bottom electrode of the resistive memory cell, wherein the over reset voltage difference falls in a reset complementary switching (reset-CS) voltage range of the resistive memory cell. During a second period, a set voltage difference is applied between the top electrode and the bottom electrode of the resistive memory cell to increase a compliance current of the resistive memory cell. During a third period, a reset operation is performed on the resistive memory cell.
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