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公开(公告)号:US12245428B2
公开(公告)日:2025-03-04
申请号:US17575418
申请日:2022-01-13
Applicant: MACRONIX International Co., Ltd.
Inventor: Hang-Ting Lue , Chia-Jung Chiu , Teng-Hao Yeh , Guan-Ru Lee
IPC: H10B41/27 , H10B41/10 , H10B43/10 , H10B43/27 , H01L21/786
Abstract: A three-dimensional AND flash memory device includes a gate stack structure, a charge storage structure, a first conductive pillar and a second conductive pillar, an insulating pillar, and a channel pillar. The gate stack structure includes gate layers and insulating layers stacked alternately with each other. The first and second conductive pillars extend through the gate stack structure. The channel pillar extends through the gate stack structure. The charge storage structure is disposed between the gate stack structure and the channel pillar. The channel pillar includes: a first part and a second part connected each other. The first part is located between the charge storage structure and the insulating pillar. The second part includes a first region electrically connected to the first conductive pillar, and a second region electrically connected to the second conductive pillar. A curvature of the first part is smaller than a curvature of the second part.
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公开(公告)号:US11678486B2
公开(公告)日:2023-06-13
申请号:US16784167
申请日:2020-02-06
Applicant: MACRONIX International Co., Ltd.
Inventor: Hang-Ting Lue , Wei-Chen Chen , Teng Hao Yeh , Guan-Ru Lee
IPC: H01L27/11582 , H01L27/11565 , H01L23/528 , H01L21/02 , H01L21/311 , H01L29/51 , H01L21/306 , H01L21/28
CPC classification number: H01L27/11582 , H01L23/528 , H01L27/11565 , H01L21/0217 , H01L21/02164 , H01L21/02271 , H01L21/02532 , H01L21/02595 , H01L21/30604 , H01L21/31111 , H01L29/40117 , H01L29/513 , H01L29/518
Abstract: Provided are a 3D flash memory and an array layout thereof. The 3D flash memory includes a gate stack structure, a annular channel pillar, a first source/drain pillar, a second source/drain pillar and a charge storage structure. The gate stack structure is disposed on a dielectric base and includes a plurality of gate layers electrically insulated from each other. The annular channel pillar is disposed on the dielectric base and penetrates through the gate stack structure. The first source/drain pillar and the second source/drain pillar are disposed on the dielectric base, are located within the channel pillar and penetrate through the gate stack structure. The first source/drain pillar and the second source/drain pillar are separated from each other and are each connected to the channel pillar. The charge storage structure is disposed between each of the plurality of gate layers and the channel pillar.
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公开(公告)号:US09721964B2
公开(公告)日:2017-08-01
申请号:US14297346
申请日:2014-06-05
Applicant: Macronix International Co., Ltd.
Inventor: Guan-Ru Lee
IPC: H01L27/115 , H01L27/11582 , H01L21/28
CPC classification number: H01L27/11582 , H01L21/28282
Abstract: A memory device includes a plurality of stacks of conductive strips alternating with insulating strips. At least one of the insulating strips includes an insulating material with a dielectric constant equal to or lower than 3.6. A plurality of structures of a conductive material is arranged orthogonally over the stacks. Memory elements are disposed in interface regions at cross-points between side surfaces of the stacks and structures. The insulating strips can have equivalent oxide thicknesses EOT substantially greater than their respective physical thicknesses. The EOT can be at least 10% greater than the respective physical thicknesses. The at least one of the insulating strips can consist essentially of the insulating material with a dielectric constant equal to or lower than 3.6.
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公开(公告)号:US09673051B1
公开(公告)日:2017-06-06
申请号:US14996014
申请日:2016-01-14
Applicant: MACRONIX INTERNATIONAL CO., LTD.
Inventor: Guan-Ru Lee
IPC: H01L23/48 , H01L21/033 , H01L21/768 , H01L23/528
CPC classification number: H01L23/5283 , H01L21/0337 , H01L21/31144 , H01L21/76895
Abstract: An integrated circuit comprises a plurality of strips of material over a substrate, the plurality of strips including strips S(i), each strip S(i) for i going from 3 to n having a first segment and a second segment separated by a gap from the first segment. The integrated circuit comprises a plurality of landing areas, the plurality of landing areas including landing areas A(i), each landing area A(i) for i going from 3 to n−2 connecting a first segment of strip S(i) in the plurality of strips with a second segment of strip S(i+2) in the plurality of strips, and disposed within the gap between the first and second segments in strip S(i+1). The strips S(i) have a first pitch in a direction orthogonal to the strips, and the landing areas A(i) have a second pitch twice the first pitch in the direction orthogonal to the strips of material.
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公开(公告)号:US20160336306A1
公开(公告)日:2016-11-17
申请号:US14711874
申请日:2015-05-14
Applicant: MACRONIX INTERNATIONAL CO., LTD.
Inventor: Guan-Ru Lee
IPC: H01L27/02 , H01L21/306 , H01L29/16 , H01L21/283 , H01L27/115 , H01L29/04
CPC classification number: H01L21/283 , H01L27/11582 , H01L29/04 , H01L29/16
Abstract: A memory device comprises a patterned multi-layers stacking structure, a semiconductor capping layer, a memory layer and a channel layer. The patterned multi-layers stacking structure is formed on a substrate and has at least one trench used to define a plurality of ridge-shaped stacks comprising at least one conductive strip in the patterned multi-layers stacking structure. The semiconductor capping layer covers on the ridge-shaped stacks. The memory layer covers on sidewalls of the trench. The channel layer covers on the memory layer, the semiconductor capping layer and a bottom of the trench, wherein the channel layer is directly in contact with the semiconductor capping layer.
Abstract translation: 存储器件包括图案化的多层堆叠结构,半导体覆盖层,存储层和沟道层。 图案化的多层堆叠结构形成在基板上,并且具有至少一个沟槽,用于限定多个脊形堆叠,其包括图案化多层堆叠结构中的至少一个导电条。 半导体覆盖层覆盖在脊形堆叠上。 存储层覆盖在沟槽的侧壁上。 沟道层覆盖存储层,半导体覆盖层和沟槽的底部,其中沟道层直接与半导体覆盖层接触。
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公开(公告)号:US20240373630A1
公开(公告)日:2024-11-07
申请号:US18312207
申请日:2023-05-04
Applicant: MACRONIX International Co., Ltd.
Inventor: Kuan-Yuan Shen , Guan-Ru Lee , Chia-Jung Chiu
IPC: H10B43/27
Abstract: A semiconductor device includes a staircase structure and an extension part. The stacked structure is located on a dielectric substrate. The staircase structure includes a plurality of conductive layers and a plurality of insulating layers stacked alternately on each other. The extension part is located at an end of the lower stair part of the staircase structure. The resistance value of the extension part is different from the resistance value of the plurality of conductive layers.
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公开(公告)号:US11985822B2
公开(公告)日:2024-05-14
申请号:US17009968
申请日:2020-09-02
Applicant: MACRONIX INTERNATIONAL CO., LTD.
Inventor: Teng-Hao Yeh , Chih-Wei Hu , Hang-Ting Lue , Guan-Ru Lee
IPC: H01L27/115 , H01L23/522 , H01L23/535 , H01L27/11565 , H01L27/11582 , H10B43/10 , H10B43/27
CPC classification number: H10B43/27 , H01L23/5226 , H10B43/10
Abstract: A memory device is provided. The memory device includes a stacked structure, a tubular element, a conductive pillar and memory cells. The tubular element includes a dummy channel layer and penetrates the stacked structure. The conductive pillar is enclosed by the tubular element and extending beyond a bottom surface of the dummy channel layer. The memory cells are in the stacked structure and electrically connected to the conductive pillar.
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公开(公告)号:US20230284446A1
公开(公告)日:2023-09-07
申请号:US17684271
申请日:2022-03-01
Applicant: MACRONIX International Co., Ltd.
Inventor: Guan-Ru Lee
IPC: H01L27/11582
CPC classification number: H01L27/11582
Abstract: A 3D AND flash memory device includes a gate stack structure, a channel stack structure, a source pillar and a drain pillar, and a plurality of charge storage structures. The gate stack structure is located on the dielectric substrate. The gate stack structure includes a plurality of gate layers and a plurality of insulating layers stacked alternately with each other. The channel stack structure extends through the gate stack structure. The channel stack structure includes a plurality of channel rings spaced apart from each other. The source pillar and the drain pillar are located in the channel stack structure and are respectively electrically connected to the plurality of channel rings. The plurality of charge storage structures are located between the plurality of gate layers and the plurality of channel rings.
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公开(公告)号:US20230269944A1
公开(公告)日:2023-08-24
申请号:US18308594
申请日:2023-04-27
Applicant: MACRONIX International Co., Ltd.
Inventor: Hang-Ting Lue , Wei-Chen Chen , Teng-Hao Yeh , Guan-Ru Lee
IPC: H10B43/27 , H01L23/528 , H10B43/10
CPC classification number: H10B43/27 , H01L23/528 , H10B43/10 , H01L21/0217
Abstract: Provided are a 3D flash memory and an array layout thereof. The 3D flash memory includes a gate stack structure, a annular channel pillar, a first source/drain pillar, a second source/drain pillar and a charge storage structure. The gate stack structure is disposed on a dielectric base and includes a plurality of gate layers electrically insulated from each other. The annular channel pillar is disposed on the dielectric base and penetrates through the gate stack structure. The first source/drain pillar and the second source/drain pillar are disposed on the dielectric base, are located within the channel pillar and penetrate through the gate stack structure. The first source/drain pillar and the second source/drain pillar are separated from each other and are each connected to the channel pillar. The charge storage structure is disposed between each of the plurality of gate layers and the channel pillar.
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公开(公告)号:US11638379B2
公开(公告)日:2023-04-25
申请号:US17511829
申请日:2021-10-27
Applicant: MACRONIX INTERNATIONAL CO., LTD.
Inventor: Min-Feng Hung , Chia-Jung Chiu , Guan-Ru Lee
IPC: H10B43/20 , H01L29/417 , H01L21/762
Abstract: A method for forming a memory device is provided. The memory device includes a substrate; a stack including a plurality of conductive layers and a plurality of insulating layers being alternatively stacked on the substrate; a plurality of memory structures formed on the substrate and penetrating the stack; a plurality of isolation structures formed on the substrate and penetrating the stack, wherein the isolation structures dividing the memory structures into a plurality of first memory structures and a plurality of second memory structures; and a plurality of common source pillars formed on the substrate and penetrating the stack, wherein the common source pillars directly contact the isolation structures.
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