Method for forming a self-aligned contact of a semiconductor device and method for manufacturing a semiconductor device using the same
    41.
    发明授权
    Method for forming a self-aligned contact of a semiconductor device and method for manufacturing a semiconductor device using the same 有权
    用于形成半导体器件的自对准接触的方法和使用其制造半导体器件的方法

    公开(公告)号:US06730570B2

    公开(公告)日:2004-05-04

    申请号:US10348017

    申请日:2003-01-22

    IPC分类号: H01L21336

    摘要: A method for forming a self-aligned contact in a semiconductor device which can reduce process failures and a method for manufacturing a semiconductor device that includes the self-aligned contact are provided. A self-aligned contact hole is formed in an interlayer dielectric film to expose a portion of the substrate between conductive structures formed thereon. A buffer layer is formed on a sidewall of the self-aligned contact hole, on the bottom of the self-aligned contact hole, and on the interlayer dielectric film such that the thickness of the buffer layer at an upper portion of the self-aligned contact hole is greater than the thickness of the buffer layer at the bottom of the self-aligned contact hole. After removing the portion of the buffer layer on the bottom of the self-aligned contact hole, a contact is formed in the self-aligned contact hole to make contact with the substrate.

    摘要翻译: 提供了一种用于在可以减少工艺故障的半导体器件中形成自对准接触的方法以及包括自对准接触的半导体器件的制造方法。 在层间电介质膜中形成自对准接触孔,以在其上形成的导电结构之间露出基板的一部分。 在自对准接触孔的侧壁,自对准接触孔的底部和层间电介质膜上形成缓冲层,使得缓冲层在自对准的上部的厚度 接触孔大于自对准接触孔底部缓冲层的厚度。 在自对准接触孔的底部上移除缓冲层的部分之后,在自对准接触孔中形成接触以与衬底接触。

    One-cylinder stack capacitor and method for fabricating the same

    公开(公告)号:US06700153B2

    公开(公告)日:2004-03-02

    申请号:US10136385

    申请日:2002-05-02

    IPC分类号: H01L27108

    摘要: An etch stop layer is formed over a surface of an interlayer insulating layer and over a surface of a conductive plug extending at a depth from the surface of the interlayer insulating layer. A lower mold layer is deposited over the etch stop layer, and a wet etch rate of the lower mold layer is adjusted by adding dopants to the lower mold layer during formation of the lower mold layer, and by annealing the lower mold layer. An upper mold layer is then deposited over the surface of the lower mold layer, such that a wet etch rate of the upper mold layer is less than the adjusted wet etch rate of the lower mold layer. The upper mold layer, the lower mold layer and the etch stop layer are then subjected to dry etching to form an opening therein which exposes at least a portion of the surface of the contact plug. Then a wet etching of the upper mold layer and the lower mold layer is performed so as to increase a size of the opening at the lower mold layer and so at to expose a surface portion of the etch stop layer adjacent the surface of the conductive plug. A conductive material is then deposited over the surface of the opening in the upper and lower mold layers to define a capacitor electrode.

    Nonvolatile memory devices and fabricating methods thereof
    44.
    发明授权
    Nonvolatile memory devices and fabricating methods thereof 有权
    非易失存储器件及其制造方法

    公开(公告)号:US08614476B2

    公开(公告)日:2013-12-24

    申请号:US13564992

    申请日:2012-08-02

    IPC分类号: H01L29/788

    摘要: Non-volatile memory devices, and fabricating methods thereof, include a floating gate over a substrate, a lower barrier layer including a first lower barrier layer on the upper surface of the floating gate, and a second lower barrier layer on a side surface of the floating gate to have a thickness smaller than a thickness of the first lower barrier layer, an inter-gate dielectric layer over the lower barrier layer, and a control gate over the inter-gate dielectric layer.

    摘要翻译: 非易失性存储器件及其制造方法包括在衬底上的浮置栅极,在浮置栅极的上表面上包括第一下阻挡层的下势垒层和位于浮置栅极的侧表面上的第二下势垒层 浮栅的厚度小于第一下阻挡层的厚度,下阻挡层上的栅极间电介质层和栅极间电介质层上的控制栅极。

    GATE STRUCTURES
    46.
    发明申请
    GATE STRUCTURES 有权
    门结构

    公开(公告)号:US20120187470A1

    公开(公告)日:2012-07-26

    申请号:US13340968

    申请日:2011-12-30

    IPC分类号: H01L29/788

    CPC分类号: H01L21/28273 H01L27/11531

    摘要: A method of forming a gate structure includes forming a tunnel insulation layer pattern on a substrate, forming a floating gate on the tunnel insulation layer pattern, forming a dielectric layer pattern on the floating gate, the dielectric layer pattern including a first oxide layer pattern, a nitride layer pattern on the first oxide layer pattern, and a second oxide layer pattern on the nitride layer pattern, the second oxide layer pattern being formed by performing an anisotropic plasma oxidation process on the nitride layer, such that a first portion of the second oxide layer pattern on a top surface of the floating gate has a larger thickness than a second portion of the second oxide layer pattern on a sidewall of the floating gate, and forming a control gate on the second oxide layer.

    摘要翻译: 形成栅极结构的方法包括在衬底上形成隧道绝缘层图案,在隧道绝缘层图案上形成浮栅,在浮栅上形成电介质层图案,电介质层图案包括第一氧化层图案, 所述第一氧化物层图案上的氮化物层图案和所述氮化物层图案上的第二氧化物层图案,所述第二氧化物层图案通过在所述氮化物层上进行各向异性等离子体氧化处理而形成,使得所述第二氧化物层图案的第二部分 在浮置栅极的顶表面上的氧化物层图案具有比浮置栅极的侧壁上的第二氧化物层图案的第二部分更大的厚度,并且在第二氧化物层上形成控制栅极。

    METHODS OF MANUFACTURING SEMICONDUCTOR DEVICES
    47.
    发明申请
    METHODS OF MANUFACTURING SEMICONDUCTOR DEVICES 有权
    制造半导体器件的方法

    公开(公告)号:US20120115293A1

    公开(公告)日:2012-05-10

    申请号:US13287509

    申请日:2011-11-02

    摘要: In a method of manufacturing a semiconductor device, a plurality of sacrificial layers and a plurality of insulating interlayers are repeatedly and alternately on a substrate. The insulating interlayers include a different material from a material of the sacrificial layers. At least one opening through the insulating interlayers and the sacrificial layers are formed. The at least one opening exposes the substrate. The seed layer is formed on an inner wall of the at least one opening using a first silicon source gas. A polysilicon channel is formed in the at least one opening by growing the seed layer. The sacrificial layers are removed to form a plurality of grooves between the insulating interlayers. A plurality of gate structures is formed in the grooves, respectively.

    摘要翻译: 在制造半导体器件的方法中,多个牺牲层和多个绝缘中间层在衬底上重复交替。 绝缘夹层包括与牺牲层的材料不同的材料。 通过绝缘夹层和牺牲层形成至少一个开口。 至少一个开口露出基板。 种子层使用第一硅源气体形成在至少一个开口的内壁上。 通过种植种子层在至少一个开口中形成多晶硅沟道。 去除牺牲层以在绝缘夹层之间形成多个凹槽。 在槽中分别形成有多个栅极结构。

    Vertical Memory Devices And Methods Of Manufacturing The Same
    48.
    发明申请
    Vertical Memory Devices And Methods Of Manufacturing The Same 有权
    垂直存储器件及其制造方法

    公开(公告)号:US20120098139A1

    公开(公告)日:2012-04-26

    申请号:US13246152

    申请日:2011-09-27

    IPC分类号: H01L23/48 H01L21/44

    CPC分类号: H01L27/11582 H01L29/7926

    摘要: A vertical memory device includes a channel, a ground selection line (GSL), word lines, a string selection line (SSL), and a contact. The channel includes a vertical portion and a horizontal portion. The vertical portion extends in a first direction substantially perpendicular to a top surface of a substrate, and the horizontal portion is connected to the vertical portion and parallel to the top surface of the substrate. The GSL, the word lines and the SSL are formed on a sidewall of the vertical portion of the channel sequentially in the first direction, and are spaced apart from each other. The contact is on the substrate and electrically connected to the horizontal portion of the channel.

    摘要翻译: 垂直存储器件包括通道,接地选择线(GSL),字线,字符串选择线(SSL)和触点。 通道包括垂直部分和水平部分。 垂直部分在基本上垂直于基板的顶表面的第一方向上延伸,并且水平部分连接到垂直部分并且平行于基板的顶表面。 GSL,字线和SSL沿着第一方向依次形成在通道的垂直部分的侧壁上,并且彼此间隔开。 触点位于基板上并电连接到通道的水平部分。