Method for patterning ceramic layers
    2.
    发明授权
    Method for patterning ceramic layers 失效
    图案化陶瓷层的方法

    公开(公告)号:US06953722B2

    公开(公告)日:2005-10-11

    申请号:US10425461

    申请日:2003-04-29

    IPC分类号: H01L21/311 H01L21/8242

    CPC分类号: H01L27/10867 H01L21/31133

    摘要: In a method for forming patterned ceramic layers, a ceramic material is deposited on a substrate and is subsequently densified by heat treatment, for example. In this case, the initially amorphous material is converted into a crystalline or polycrystalline form. In order that the now crystalline material can be removed again from the substrate, imperfections are produced in the ceramic material, for example by ion implantation. As a result, the etching medium can more easily attack the ceramic material, so that the latter can be removed with a higher etching rate. Through inclined implantation, the method can be performed in a self-aligning manner and the ceramic material can be removed on one side, by way of example, in trenches or deep trench capacitors.

    摘要翻译: 在用于形成图案化陶瓷层的方法中,陶瓷材料沉积在基底上,并随后通过热处理致密化。 在这种情况下,最初的无定形材料被转化为结晶或多晶形式。 为了现在的结晶材料可以再次从衬底去除,例如通过离子注入在陶瓷材料中产生缺陷。 结果,蚀刻介质可以更容易地侵蚀陶瓷材料,使得后者可以以更高的蚀刻速率被去除。 通过倾斜注入,该方法可以以自对准的方式进行,并且陶瓷材料可以通过例如在沟槽或深沟槽电容器中被一侧除去。

    Stacked capacitor and method for producing stacked capacitors for dynamic memory cells
    5.
    发明申请
    Stacked capacitor and method for producing stacked capacitors for dynamic memory cells 失效
    叠层电容器和用于制造用于动态存储单元的叠层电容器的方法

    公开(公告)号:US20070059893A1

    公开(公告)日:2007-03-15

    申请号:US11518504

    申请日:2006-09-07

    IPC分类号: H01L21/336

    摘要: A method produces stacked capacitors for dynamic memory cells, in which a number of trenches (48) are formed in the masking layer (40), each trench (48) being arranged above a respective contact plug (26) and extending from the top (42) of the masking layer (40) to the contact plugs (26). A conductive layer (50) covers the side walls (49) of the trenches (48) and the contact plugs (26) in order to form a first electrode (60) of a stacked capacitor (12). In an upper region (63), which is remote from the contact stack (26), the conductive layer (50) is replaced by an insulating layer, so that it is not possible for a short circuit to arise in the event of any adhesion between adjacent electrodes.

    摘要翻译: 一种方法产生用于动态存储单元的堆叠电容器,其中在掩模层(40)中形成有多个沟槽(48),每个沟槽(48)布置在相应的接触插塞(26)的上方并从顶部 屏蔽层(40)的至少部分(42)连接到接触插塞(26)。 为了形成叠层电容器(12)的第一电极(60),导电层(50)覆盖沟槽(48)的侧壁(49)和接触插塞(26)。 在远离接触堆叠(26)的上部区域(63)中,导电层(50)由绝缘层代替,使得在任何粘附的情况下不可能出现短路 在相邻电极之间。

    Stacked capacitor and method for producing stacked capacitors for dynamic memory cells
    6.
    发明授权
    Stacked capacitor and method for producing stacked capacitors for dynamic memory cells 失效
    叠层电容器和用于制造用于动态存储单元的叠层电容器的方法

    公开(公告)号:US07413951B2

    公开(公告)日:2008-08-19

    申请号:US11518504

    申请日:2006-09-07

    IPC分类号: H01L21/8242

    摘要: A method produces stacked capacitors for dynamic memory cells, in which a number of trenches (48) are formed in the masking layer (40), each trench (48) being arranged above a respective contact plug (26) and extending from the top (42) of the masking layer (40) to the contact plugs (26). A conductive layer (50) covers the side walls (49) of the trenches (48) and the contact plugs (26) in order to form a first electrode (60) of a stacked capacitor (12). In an upper region (63), which is remote from the contact stack (26), the conductive layer (50) is replaced by an insulating layer, so that it is not possible for a short circuit to arise in the event of any adhesion between adjacent electrodes.

    摘要翻译: 一种方法产生用于动态存储单元的堆叠电容器,其中在掩模层(40)中形成有多个沟槽(48),每个沟槽(48)布置在相应的接触插塞(26)的上方并从顶部 屏蔽层(40)的至少部分(42)连接到接触插塞(26)。 为了形成叠层电容器(12)的第一电极(60),导电层(50)覆盖沟槽(48)的侧壁(49)和接触插塞(26)。 在远离接触堆叠(26)的上部区域(63)中,导电层(50)由绝缘层代替,使得在任何粘附的情况下不可能出现短路 在相邻电极之间。

    Method for fabricating trench capacitor with insulation collar electrically connected to substrate through buried contact, in particular, for a semiconductor memory cell
    7.
    发明申请
    Method for fabricating trench capacitor with insulation collar electrically connected to substrate through buried contact, in particular, for a semiconductor memory cell 失效
    用于制造具有绝缘环的沟槽电容器的方法,所述绝缘套环通过埋入触点电连接到衬底,特别是用于半导体存储器单元

    公开(公告)号:US20050026384A1

    公开(公告)日:2005-02-03

    申请号:US10901406

    申请日:2004-07-27

    摘要: Fabricating a trench capacitor with an insulation collar in a substrate, which is electrically connected thereto on one side through a buried contact, in particular, for a semiconductor memory cell with a planar selection transistor in the substrate and connected through the buried contact, includes providing a trench using an opening in a hard mask, providing a capacitor dielectric in lower and central trench regions, the collar in central and upper trench regions, and a conductive filling at least as far as the insulation collar topside, completely filling the trench with a filling material, carrying out STI trench fabrication process, removing the filling material and sinking the filling to below the collar topside, forming an insulation region on one side above the collar; uncovering a connection region on a different side above the collar, and forming the buried contact by depositing and etching back a metallic filling.

    摘要翻译: 在衬底中制造具有绝缘套环的沟槽电容器,其在一侧通过埋入触点电连接,特别地,用于具有衬底中的平面选择晶体管并通过埋入触点连接的半导体存储器单元包括提供 在硬掩模中使用开口的沟槽,在下部和中部沟槽区域中提供电容器电介质,在中央和上部沟槽区域中的套环,以及至少与绝缘套环顶部一样的导电填充物,完全用一个 填充材料,执行STI沟槽制造工艺,去除填充材料并将填充物下沉到轴环顶部以下,在轴环上方的一侧上形成绝缘区域; 露出套环上方不同侧的连接区域,并通过沉积和蚀刻金属填充物来形成掩埋触点。

    Method for fabricating trench capacitor with insulation collar electrically connected to substrate through buried contact, in particular, for a semiconductor memory cell
    8.
    发明授权
    Method for fabricating trench capacitor with insulation collar electrically connected to substrate through buried contact, in particular, for a semiconductor memory cell 失效
    用于制造具有绝缘环的沟槽电容器的方法,所述绝缘套环通过埋入触点电连接到衬底,特别是用于半导体存储器单元

    公开(公告)号:US07273790B2

    公开(公告)日:2007-09-25

    申请号:US10901406

    申请日:2004-07-27

    IPC分类号: H01L21/20

    摘要: Fabricating a trench capacitor with an insulation collar in a substrate, which is electrically connected thereto on one side through a buried contact, in particular, for a semiconductor memory cell with a planar selection transistor in the substrate and connected through the buried contact, includes providing a trench using an opening in a hard mask, providing a capacitor dielectric in lower and central trench regions, the collar in central and upper trench regions, and a conductive filling at least as far as the insulation collar topside, completely filling the trench with a filling material, carrying out STI trench fabrication process, removing the filling material and sinking the filling to below the collar topside, forming an insulation region on one side above the collar; uncovering a connection region on a different side above the collar, and forming the buried contact by depositing and etching back a metallic filling.

    摘要翻译: 在衬底中制造具有绝缘套环的沟槽电容器,其在一侧通过埋入触点电连接,特别地,用于具有衬底中的平面选择晶体管并通过埋入触点连接的半导体存储器单元包括提供 在硬掩模中使用开口的沟槽,在下部和中部沟槽区域中提供电容器电介质,在中央和上部沟槽区域中的套环,以及至少与绝缘套环顶部一样的导电填充物,完全用一个 填充材料,执行STI沟槽制造工艺,去除填充材料并将填充物下沉到轴环顶部以下,在轴环上方的一侧上形成绝缘区域; 露出套环上方不同侧的连接区域,并通过沉积和蚀刻金属填充物来形成掩埋触点。

    Negative ion implant mask formation for self-aligned, sublithographic resolution patterning for single-sided vertical device formation
    10.
    发明授权
    Negative ion implant mask formation for self-aligned, sublithographic resolution patterning for single-sided vertical device formation 失效
    用于单面垂直器件形成的自对准,亚光刻分辨率图案的负离子注入掩模形成

    公开(公告)号:US06498061B2

    公开(公告)日:2002-12-24

    申请号:US09730674

    申请日:2000-12-06

    IPC分类号: H01L218242

    CPC分类号: H01L27/10867

    摘要: A process for fabricating a single-sided semiconductor deep trench structure filled with polysilicon trench fill material includes the following steps. Form a thin film, silicon nitride, barrier layer over the trench fill material. Deposit a thin film of an amorphous silicon masking layer over the barrier layer. Perform an angled implant into portions of the amorphous silicon masking layer which are not in the shadow of the deep trench. Strip the undoped portions of the amorphous silicon masking layer from the deep trench. Then strip the newly exposed portions of barrier layer exposing a part of the trench fill polysilicon surface and leaving the doped, remainder of the amorphous silicon masking layer exposed. Counterdope the exposed part of the trench fill material. Oxidize exposed portions of the polysilicon trench fill material, and then strip the remainder of the masking layer.

    摘要翻译: 用于制造填充有多晶硅沟槽填充材料的单面半导体深沟槽结构的工艺包括以下步骤。 在沟槽填充材料上形成薄膜,氮化硅,阻挡层。 在阻挡层上沉积非晶硅掩模层的薄膜。 对非深度沟槽阴影的非晶硅掩模层的部分进行成角度的注入。 从深沟槽剥离非晶硅掩模层的未掺杂部分。 然后剥离暴露部分沟槽填充多晶硅表面的势垒层的新暴露部分,并且使非晶硅掩模层的掺杂剩余部分露出。 反映出暴露部分的沟槽填充材料。 氧化多晶硅沟槽填充材料的暴露部分,然后剥离掩模层的其余部分。