Raised vertical channel transistor device
    31.
    发明授权
    Raised vertical channel transistor device 有权
    升高的垂直沟道晶体管器件

    公开(公告)号:US07675109B2

    公开(公告)日:2010-03-09

    申请号:US12265734

    申请日:2008-11-06

    申请人: Shian-Jyh Lin

    发明人: Shian-Jyh Lin

    IPC分类号: H01L29/78

    摘要: A method for fabricating a vertical channel transistor device is provided. An opening is formed in a dielectric stack comprised of a pad nitride layer and a pad oxide layer. A plurality of epitaxial silicon growth and dry etching processes are carried out to form drain, vertical channel and source in the opening. Subsequently, sidewall gate dielectric and sidewall gate electrode are formed on the vertical channel. The present invention is suited for dynamic random access memory (DRAM) devices, particularly suited for very high-density trench-capacitor DRAM devices.

    摘要翻译: 提供一种用于制造垂直沟道晶体管器件的方法。 在由衬垫氮化物层和衬垫氧化物层组成的电介质堆叠中形成开口。 进行多个外延硅生长和干蚀刻工艺以在开口中形成漏极,垂直沟道和源极。 随后,在垂直沟道上形成侧壁栅极电介质和侧壁栅电极。 本发明适用于特别适用于非常高密度的沟槽电容器DRAM器件的动态随机存取存储器(DRAM)器件。

    Semiconductor memory device and fabrication method thereof
    32.
    发明授权
    Semiconductor memory device and fabrication method thereof 有权
    半导体存储器件及其制造方法

    公开(公告)号:US07638391B2

    公开(公告)日:2009-12-29

    申请号:US11951270

    申请日:2007-12-05

    IPC分类号: H01L21/8242 H01L27/108

    CPC分类号: H01L27/10867

    摘要: A method for fabricating a semiconductor memory device. A pair of neighboring trench capacitors is formed in a substrate. An insulating layer having a pair of connecting structures therein is formed on the substrate, in which the pair of connecting structures is electrically connected to the pair of neighboring trench capacitors. An active layer is formed on the insulating layer between the pair of connecting structures so as to cover the pair of connecting structures. A pair of gate structures is formed on the active layer to electrically connect to the pair of trench capacitors. A semiconductor memory device is also disclosed.

    摘要翻译: 一种制造半导体存储器件的方法。 在衬底中形成一对相邻的沟槽电容器。 在其上形成有一对连接结构的绝缘层,其中一对连接结构电连接到该对相邻的沟槽电容器。 在一对连接结构之间的绝缘层上形成有源层,以便覆盖该对连接结构。 在有源层上形成一对栅极结构,以电连接到该对沟槽电容器。 还公开了一种半导体存储器件。

    METHOD FOR FABRICATING DEEP TRENCH DRAM ARRAY
    33.
    发明申请
    METHOD FOR FABRICATING DEEP TRENCH DRAM ARRAY 有权
    用于制造深层TRENCH DRAM阵列的方法

    公开(公告)号:US20090104747A1

    公开(公告)日:2009-04-23

    申请号:US12046470

    申请日:2008-03-12

    申请人: Shian-Jyh Lin

    发明人: Shian-Jyh Lin

    IPC分类号: H01L21/8242

    CPC分类号: H01L27/1087 H01L27/0207

    摘要: A method for fabricating deep trench DRAM array is disclosed. A substrate having thereon a memory array area is provided. An array of deep trench patterns is formed in the memory array area. The deep trench (DT) capacitor patterns include first dummy DT patterns in a first column, second dummy DT patterns in a first row and a plurality of effective DT capacitor patterns. Each of the first dummy DT patterns has an extended width (W) along a first direction, which is greater than or equal to a photomask's shift tolerance. Each of the second dummy DT patterns has an extended length (L) along a second direction, which is greater than or equal to the photomask's shift tolerance. The first direction is normal to the second direction.

    摘要翻译: 公开了一种用于制造深沟槽DRAM阵列的方法。 提供其上具有存储器阵列区域的衬底。 在存储器阵列区域中形成深沟槽图形的阵列。 深沟槽(DT)电容器图案包括第一列中的第一虚拟DT图案,第一行中的第二虚设DT图案和多个有效DT电容器图案。 第一虚拟DT图案中的每个图案沿着第一方向具有大于或等于光掩模的偏移容限的扩展宽度(W)。 第二虚拟DT图案中的每一个沿着第二方向具有大于或等于光掩模的移动公差的延伸长度(L)。 第一个方向与第二个方向正交。

    METHOD FOR FABRICATING A SEMICONDUCTOR DEVICE
    34.
    发明申请
    METHOD FOR FABRICATING A SEMICONDUCTOR DEVICE 有权
    制造半导体器件的方法

    公开(公告)号:US20090068813A1

    公开(公告)日:2009-03-12

    申请号:US11964516

    申请日:2007-12-26

    IPC分类号: H01L21/02

    摘要: A method for fabricating the semiconductor device comprises providing a semiconductor substrate having a device region and a testkey region. A first trench is formed in the device region and a second trench is formed in the testkey region. A conductive layer with a first etching selectivity is formed in the first and second trenches. A first implantation process is performed in a first direction to form a first doped region with a first impurity and an undoped region in the conductive layer simultaneously and respectively in the device region and in the testkey region. A second implantation process is performed in the second trench to form a second doped region with a second impurity in the conductive layer, wherein the conductive layer in the second trench has a second etching selectivity higher than the first etching selectivity.

    摘要翻译: 一种制造半导体器件的方法包括提供具有器件区域和测试键区域的半导体衬底。 在器件区域中形成第一沟槽,并且在测试键区域中形成第二沟槽。 在第一和第二沟槽中形成具有第一蚀刻选择性的导电层。 在第一方向上执行第一注入工艺以在导电层中同时并分别在器件区域和测试键区中形成具有第一杂质和未掺杂区的第一掺杂区。 在第二沟槽中执行第二注入工艺以在导电层中形成具有第二杂质的第二掺杂区,其中第二沟槽中的导电层具有高于第一蚀刻选择性的第二蚀刻选择性。

    Electrical device and method for fabricating the same
    35.
    发明授权
    Electrical device and method for fabricating the same 有权
    电气装置及其制造方法

    公开(公告)号:US07446355B2

    公开(公告)日:2008-11-04

    申请号:US11556170

    申请日:2006-11-03

    IPC分类号: H01L29/76

    摘要: A method of fabricating self-aligned recess utilizing asymmetric poly spacer is disclosed. A semiconductor substrate having thereon a first pad layer and second pad layer is provided. A plurality of trenches is embedded in a memory array region of the semiconductor substrate. Each of the trenches includes a trench top layer that extrudes from a main surface of the semiconductor substrate. Asymmetric poly spacer is formed on one side of the extruding trench top layer and is used, after oxidized, as a mask for forming a recess in close proximity to the trenches.

    摘要翻译: 公开了一种使用不对称聚合间隔物制造自对准凹槽的方法。 提供了其上具有第一焊盘层和第二焊盘层的半导体衬底。 多个沟槽嵌入在半导体衬底的存储器阵列区域中。 每个沟槽包括从半导体衬底的主表面挤出的沟槽顶层。 非对称聚合物间隔物形成在挤出沟槽顶层的一侧上,并且在氧化之后用作用于在靠近沟槽形成凹部的掩模。

    METHOD FOR MAKING A RAISED VERTICAL CHANNEL TRANSISTOR DEVICE
    36.
    发明申请
    METHOD FOR MAKING A RAISED VERTICAL CHANNEL TRANSISTOR DEVICE 有权
    制造垂直通道晶体管器件的方法

    公开(公告)号:US20080012066A1

    公开(公告)日:2008-01-17

    申请号:US11536686

    申请日:2006-09-29

    申请人: Shian-Jyh Lin

    发明人: Shian-Jyh Lin

    IPC分类号: H01L21/8238

    摘要: A method for fabricating a vertical channel transistor device is provided. An opening is formed in a dielectric stack comprised of a pad nitride layer and a pad oxide layer. A plurality of epitaxial silicon growth and dry etching processes are carried out to form drain, vertical channel and source in the opening. Subsequently, sidewall gate dielectric and sidewall gate electrode are formed on the vertical channel. The present invention is suited for dynamic random access memory (DRAM) devices, particularly suited for very high-density trench-capacitor DRAM devices.

    摘要翻译: 提供一种用于制造垂直沟道晶体管器件的方法。 在由衬垫氮化物层和衬垫氧化物层组成的电介质堆叠中形成开口。 进行多个外延硅生长和干蚀刻工艺以在开口中形成漏极,垂直沟道和源极。 随后,在垂直沟道上形成侧壁栅极电介质和侧壁栅电极。 本发明适用于特别适用于非常高密度的沟槽电容器DRAM器件的动态随机存取存储器(DRAM)器件。

    METHOD FOR FABRICATING RECESSED GATE MOS TRANSISTOR DEVICE
    37.
    发明申请
    METHOD FOR FABRICATING RECESSED GATE MOS TRANSISTOR DEVICE 有权
    用于制造接收栅极MOS晶体管器件的方法

    公开(公告)号:US20070264772A1

    公开(公告)日:2007-11-15

    申请号:US11685756

    申请日:2007-03-13

    IPC分类号: H01L21/8242

    摘要: A method of fabricating self-aligned gate trench utilizing trench top oxide (TTO) poly spacer is disclosed. A semiconductor substrate having thereon a pad oxide layer and pad nitride layer is provided. A plurality of trench capacitors are embedded in a memory array region of the semiconductor substrate. Each of the trench capacitors has a TTO that extrudes from a main surface of the semiconductor substrate. Poly spacers are formed on two opposite sides of the extruding TTO and are used, after oxidized, as an etching hard mask for etching a recessed gate trench in close proximity to the trench capacitor.

    摘要翻译: 公开了一种使用沟槽顶部氧化物(TTO)聚合间隔物制造自对准栅极沟槽的方法。 提供其上具有衬垫氧化物层和衬垫氮化物层的半导体衬底。 多个沟槽电容器嵌入在半导体衬底的存储器阵列区域中。 每个沟槽电容器具有从半导体衬底的主表面挤出的TTO。 聚合物间隔物形成在挤出TTO的两个相对侧上,并且在氧化后用作蚀刻硬掩模,用于蚀刻紧邻沟槽电容器的凹陷栅极沟槽。

    3-stage method for forming deep trench structure and deep trench capacitor
    39.
    发明申请
    3-stage method for forming deep trench structure and deep trench capacitor 有权
    形成深沟槽结构和深沟槽电容器的3阶段方法

    公开(公告)号:US20050221616A1

    公开(公告)日:2005-10-06

    申请号:US10816820

    申请日:2004-04-05

    摘要: A method for forming a deep trench structure comprises the steps of providing a silicon substrate; forming a mask layer of a predetermined pattern on the silicon substrate to expose a portion of the silicon substrate; forming a first trench in the exposed portion of the silicon substrate, the first trench having a first depth; forming a nitride layer on the surfaces of the whole structure; forming a second trench in the first trench downward, the second trench having a second depth greater than the first depth; forming another nitride layer on the surfaces of the whole structure; and forming a third trench in the second trench downward, the third trench having a third depth greater than the second depth. The method of the present invention can make the whole trench have better etch uniformity, thereby obtaining good electrical performance.

    摘要翻译: 形成深沟槽结构的方法包括以下步骤:提供硅衬底; 在所述硅衬底上形成预定图案的掩模层以暴露所述硅衬底的一部分; 在所述硅衬底的暴露部分中形成第一沟槽,所述第一沟槽具有第一深度; 在整个结构的表面上形成氮化物层; 在所述第一沟槽中形成第二沟槽,所述第二沟槽具有大于所述第一深度的第二深度; 在整个结构的表面上形成另一个氮化物层; 以及在所述第二沟槽中向下形成第三沟槽,所述第三沟槽的第三深度大于所述第二深度。 本发明的方法可以使整个沟槽具有更好的蚀刻均匀性,从而获得良好的电性能。

    Method of forming a vertical memory device with a rectangular trench
    40.
    发明申请
    Method of forming a vertical memory device with a rectangular trench 审中-公开
    形成具有矩形沟槽的垂直存储器件的方法

    公开(公告)号:US20050221560A1

    公开(公告)日:2005-10-06

    申请号:US11139450

    申请日:2005-05-27

    摘要: A method of forming a vertical memory device with a rectangular trench. First, a substrate covered by a photoresist layer is provided. Next, the photoresist layer is defined by a mask to form a rectangular opening, wherein the mask has two rectangular transparent patterns arranged with a predetermined interval. Next, the substrate is etched using the defined photoresist layer as a mask to form a single rectangular trench and the photoresist layer is then removed. Finally, a trench capacitor and a vertical transistor are successively formed in the rectangular trench to finish the vertical memory device.

    摘要翻译: 一种形成具有矩形沟槽的垂直存储器件的方法。 首先,提供由光致抗蚀剂层覆盖的基板。 接下来,通过掩模限定光致抗蚀剂层以形成矩形开口,其中掩模具有以预定间隔布置的两个矩形透明图案。 接下来,使用限定的光致抗蚀剂层作为掩模来蚀刻基板以形成单个矩形沟槽,然后除去光致抗蚀剂层。 最后,在矩形沟槽中依次形成沟槽电容器和垂直晶体管,以完成垂直存储器件。