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公开(公告)号:US10854616B2
公开(公告)日:2020-12-01
申请号:US16391130
申请日:2019-04-22
Applicant: MACRONIX International Co., Ltd.
Inventor: Chin-Cheng Yang
IPC: H01L27/115 , H01L23/544 , H01L21/66 , H01L21/311
Abstract: Reference marks for forming a staircase structure are disposed along slit areas of a 3D memory structure, and slits of the 3D memory structure are formed on the slit areas. In a staircase area, the reference marks are formed by etching the topmost one of stacked layers, having a pair of a dielectric layer and a sacrificial layer, in a stacked structure.
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公开(公告)号:US20190013325A1
公开(公告)日:2019-01-10
申请号:US15645824
申请日:2017-07-10
Applicant: MACRONIX International Co., Ltd.
Inventor: Chi-Hao Huang , Chin-Cheng Yang
IPC: H01L27/11578 , H01L21/265 , H01L21/266 , H01L21/308
Abstract: A semiconductor device and method of fabricating the same are provided. The semiconductor device includes a substrate having a trench and an etching stop layer. The etching stop layer is disposed in the substrate and surrounds the bottom surface and a portion of a sidewall of the trench.
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公开(公告)号:US20180294276A1
公开(公告)日:2018-10-11
申请号:US15483019
申请日:2017-04-10
Applicant: MACRONIX INTERNATIONAL CO., LTD.
Inventor: Kuan-Cheng Liu , Yu-Lin Liu , Cheng-Wei Lin , Chin-Cheng Yang , Shou-Wei Huang
IPC: H01L27/11582 , H01L23/544 , H01L23/528 , H01L21/28 , H01L21/768 , H01L21/027 , H01L21/311
Abstract: A semiconductor device includes a semiconductor substrate, a circuit unit and an align mark. The circuit unit is disposed on the semiconductor substrate. The align mark includes a first part and a second part respectively formed in the semiconductor substrate and adjacent to two opposite sides of the circuit unit, wherein the first part and the second part depart from each other for a predetermined distance along with a first direction.
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公开(公告)号:US20160189977A1
公开(公告)日:2016-06-30
申请号:US14582924
申请日:2014-12-24
Applicant: MACRONIX International Co., Ltd.
Inventor: Chin-Cheng Yang
IPC: H01L21/3213 , H01L21/311 , H01L21/02
CPC classification number: H01L21/32139 , H01L21/0338
Abstract: A patterning method and a patterned material layer are provided. After providing a substrate including a material layer, a hard mask layer including trenches extending in a first direction is formed over the material layer. A filling material layer is formed on the hard mask layer to cover the hard mask layer and fills in the trenches. A mask layer in a grid pattern is formed on the filling material layer. The mask layer includes first grid lines extending in the first direction and second grid lines extending in a second direction, and each of the underlying trench is located between two most adjacent first grid lines. The material layer is etched with the mask layer as an etching mask to form a patterned material layer including a plurality of first holes and a plurality of second holes.
Abstract translation: 提供了图案化方法和图案化材料层。 在提供包括材料层的基板之后,在材料层上形成包括沿第一方向延伸的沟槽的硬掩模层。 在硬掩模层上形成填充材料层以覆盖硬掩模层并填充在沟槽中。 在填充材料层上形成网格图案的掩模层。 掩模层包括沿第一方向延伸的第一栅格线和沿第二方向延伸的第二栅格线,并且每个下面的沟槽位于两个最相邻的第一栅格线之间。 用掩模层作为蚀刻掩模蚀刻材料层以形成包括多个第一孔和多个第二孔的图案化材料层。
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公开(公告)号:US09343477B2
公开(公告)日:2016-05-17
申请号:US14478626
申请日:2014-09-05
Applicant: MACRONIX International Co., Ltd.
Inventor: Chin-Cheng Yang
IPC: H01L27/115 , H01L21/311 , H01L21/3213 , H01L21/28
CPC classification number: H01L27/11582 , H01L21/31144 , H01L21/32139 , H01L27/11575
Abstract: Provided is a semiconductor device including a substrate and a stack layer. The substrate includes a first region, a second region, and a third region. The third region is disposed between the first region and the second region. Since a top surface of the substrate in the first region is lower than the top surface of the substrate in the second region, the substrate in the third region has a first step height. The stack layer is disposed on the substrate in the first and third regions. The top surface of the stack layer in the first region and the third region and the top surface of the substrate in the second region are substantially coplanar.
Abstract translation: 提供了包括基板和堆叠层的半导体器件。 衬底包括第一区域,第二区域和第三区域。 第三区域设置在第一区域和第二区域之间。 由于第一区域中的基板的顶表面比第二区域中的基板的顶表面低,所以第三区域中的基板具有第一台阶高度。 堆叠层在第一和第三区域中设置在基板上。 第一区域中的堆叠层的顶表面和第二区域中的第三区域和衬底的顶表面基本上共面。
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公开(公告)号:US12094814B2
公开(公告)日:2024-09-17
申请号:US17350936
申请日:2021-06-17
Applicant: MACRONIX International Co., Ltd.
Inventor: Chin-Cheng Yang
IPC: H01L23/522 , H01L23/48 , H01L23/528 , H10B43/10 , H10B43/27 , H10B43/35
CPC classification number: H01L23/5226 , H01L23/481 , H01L23/5283 , H10B43/10 , H10B43/27 , H10B43/35
Abstract: A memory device includes a staircase structure, multiple first plugs, multiple second plugs, and multiple third plugs. The staircase structure includes multiple gate layers and multiple insulating layers alternately stacked on each other, and the staircase structure includes multiple first blocks and multiple second blocks which alternate with each other. The first plugs are disposed in the first blocks, and the first plugs in a same first block are staggered with each other. The second plugs are disposed in the first blocks. The second plugs in a same first block are staggered with each other, and the first plugs and the second plugs in a same first block are staggered with each other. The third plugs are disposed in the second blocks.
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公开(公告)号:US10446437B2
公开(公告)日:2019-10-15
申请号:US15289231
申请日:2016-10-10
Applicant: MACRONIX INTERNATIONAL CO., LTD.
Inventor: Chin-Cheng Yang
IPC: H01L23/498 , H01L21/768 , G11C16/08 , H01L23/522 , H01L23/528 , H01L27/11524 , H01L27/11529 , H01L27/11556 , H01L27/1157 , H01L27/11573 , H01L27/11582 , H01L27/11548 , H01L27/11575 , H01L27/11526
Abstract: Multilevel circuitry such as a a 3D memory array, has a set of contact regions arranged around a perimeter of a multilevel region, in which connection is made to circuit elements in a number W levels. Each of the contact regions has a number of steps having landing areas thereon, including steps on up to a number M levels, where the number M can be much less than W. A combination of contact regions provides landing areas on all of the W levels, each of the contact regions in the combination having landing areas on different subsets of the W levels. A method of forming the device uses an etch-trim process to form M levels in all of the contact regions, and one or more anisotropic etches in some of the contact regions.
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公开(公告)号:US20190146330A1
公开(公告)日:2019-05-16
申请号:US15810551
申请日:2017-11-13
Applicant: MACRONIX INTERNATIONAL CO., LTD.
Inventor: Chin-Cheng Yang
IPC: G03F1/42 , H01L27/11521 , H01L27/11556 , H01L27/11526 , H01L27/11568 , H01L27/11582 , H01L27/11573 , H01L21/768 , H01L23/528 , H01L23/522 , G03F1/80 , G03F1/76
Abstract: A method for forming an aligned mask comprises etching a reference mark on a substrate to demarcate a boundary of an etch region; forming an etch mask on the substrate, using an exposure setting, the etch mask having a boundary; and measuring a distance between the reference mark and the boundary. When the measured distance is outside a margin of a target distance, then the etch mask is removed from the substrate, the exposure setting is changed, a next etch mask is formed using the changed exposure setting, and said measuring is repeated. A set of reference marks can be etched on a top level in a set of levels to demarcate boundaries of etch regions. An etch-trim process can be performed to form steps in the set of levels, wherein the etch-trim process includes at least first and second etch-trim cycles using first and second reference marks.
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公开(公告)号:US10153263B2
公开(公告)日:2018-12-11
申请号:US14861933
申请日:2015-09-22
Applicant: MACRONIX International Co., Ltd.
Inventor: Chin-Cheng Yang , Chia-Hua Lin , Chih-Hao Huang
Abstract: A structure of a patterned material layer including separate patterns arranged in rows and columns is described. The separate patterns in at least one row including the outmost row each have a larger dimension in the column direction than the separate patterns in the other rows. The separate patterns in at least one column including the outmost column each have a larger dimension in the row direction than the separate patterns in the other columns.
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公开(公告)号:US10153233B1
公开(公告)日:2018-12-11
申请号:US15655596
申请日:2017-07-20
Applicant: MACRONIX International Co., Ltd.
Inventor: Chi-Hao Huang , Chin-Cheng Yang
IPC: H01L23/522 , H01L23/528 , H01L21/768
Abstract: An interconnect structure including a first dielectric layer, a first conductive layer, a second conductive layer, a capping layer, and a via is provided. The first dielectric layer has a first trench and a second trench. The first conductive layer is located in the first trench. The second conductive layer is located in the second trench, and a top surface of the second conductive layer is lower than a top surface of the first dielectric layer. The capping layer having a via opening exposing a portion of the first conductive layer covers the first dielectric layer, the first conductive layer, and the second conductive layer. The via located on the first conductive layer and the first dielectric layer located between the first conductive layer and the second conductive layer is filled into the via opening and electrically connected to the first conductive layer.
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