Isolation method for semiconductor device
    2.
    发明申请

    公开(公告)号:US20060183296A1

    公开(公告)日:2006-08-17

    申请号:US11398536

    申请日:2006-04-06

    CPC classification number: H01L21/76232

    Abstract: An isolation method for a semiconductor device where an insulating mask layer is formed on desired regions of a semiconductor substrate. A trench is formed to a desired depth in the semiconductor substrate using the insulating mask layer as a mask. An oxide layer is formed on the insulating mask layer and on the sidewall of the trench. A trench liner layer is formed on the oxide layer. An insulating filler layer is formed in the trench in the semiconductor substrate, on which the trench liner layer is formed, so as to fill the trench. The insulating mask layer is removed. According to the isolation method for a semiconductor device, it is possible to reduce dents from occurring along the edge of the trench, reduce a bird's beak type oxide layer from occurring at an interface between the insulating mask layers, decrease the leakage current, or improve the electrical characteristics, such as threshold voltage.

    Method of fabricating a MOS transistor with elevated source/drain structure using a selective epitaxial growth process
    3.
    发明授权
    Method of fabricating a MOS transistor with elevated source/drain structure using a selective epitaxial growth process 有权
    使用选择性外延生长工艺制造具有升高的源极/漏极结构的MOS晶体管的方法

    公开(公告)号:US07033895B2

    公开(公告)日:2006-04-25

    申请号:US10823420

    申请日:2004-04-13

    Abstract: In a metal-oxide semiconductor (MOS) transistor with an elevated source/drain structure and in a method of fabricating the MOS transistor with the elevated source/drain structure using a selective epitaxy growth (SEG) process, a source/drain extension junction is formed after an epi-layer is formed, thereby preventing degradation of the source/drain junction region. In addition, the source/drain extension junction is partially overlapped by a lower portion of the gate layer, since two gate spacers are formed and two elevated source/drain layers are formed in accordance with the SEG process. This mitigates the short channel effect and reduces sheet resistance in the source/drain layers and the gate layer.

    Abstract translation: 在具有升高的源极/漏极结构的金属氧化物半导体(MOS)晶体管中,并且使用选择性外延生长(SEG)工艺制造具有升高的源极/漏极结构的MOS晶体管的方法中,源极/漏极延伸结是 在形成外延层之后形成,从而防止源极/漏极结区域的劣化。 此外,源极/漏极延伸结部分由栅极层的下部部分地重叠,因为形成了两个栅极间隔物,并且根据SEG工艺形成两个升高的源极/漏极层。 这减轻了短沟道效应并降低了源极/漏极层和栅极层中的薄层电阻。

    Method of fabricating non-volatile memory device having a structure of silicon-oxide-nitride-oxide-silicon
    5.
    发明授权
    Method of fabricating non-volatile memory device having a structure of silicon-oxide-nitride-oxide-silicon 有权
    制造具有氧化硅 - 氮化物 - 氧化物 - 硅的结构的非易失性存储器件的方法

    公开(公告)号:US06835621B2

    公开(公告)日:2004-12-28

    申请号:US10455676

    申请日:2003-06-05

    Abstract: In a method of fabricating a non-volatile memory device with a silicon-oxide-nitride-oxide-silicon (SONOS) structure, a silicon nitride layer, which is a charge trapping layer, and a polysilicon layer, which is a control gate electrode, are electrically isolated from one another in the resulting structure. According to the method, a silicon oxide layer as a tunneling layer and a silicon nitride layer pattern as a charge trapping layer are formed on a semiconductor substrate; an oxidation process is performed to form a silicon nitride oxide layer, as a blocking layer, at top and sides of the silicon nitride layer pattern and to form a gate insulating layer at an exposed portion of the semiconductor substrate; and a control gate electrode is formed on the silicon nitride oxide layer and the gate insulating layer.

    Abstract translation: 在制造具有氧化硅 - 氮化物 - 氧化物 - 硅(SONOS)结构的非易失性存储器件的方法中,作为电荷俘获层的氮化硅层和作为控制栅电极的多晶硅层 在所得结构中彼此电隔离。 根据该方法,在半导体衬底上形成作为隧穿层的氧化硅层和作为电荷俘获层的氮化硅层图案; 进行氧化处理以在氮化硅层图案的顶部和侧面形成氮化硅氧化物层作为阻挡层,并在半导体衬底的暴露部分形成栅极绝缘层; 并且在氮氧化硅层和栅极绝缘层上形成控制栅电极。

    Method of forming T-shaped isolation layer, method of forming elevated salicide source/drain region using the same, and semiconductor device having T-shaped isolation layer
    6.
    发明授权
    Method of forming T-shaped isolation layer, method of forming elevated salicide source/drain region using the same, and semiconductor device having T-shaped isolation layer 有权
    形成T型隔离层的方法,使用其形成升高的自对准硅源/漏区的方法,以及具有T形隔离层的半导体器件

    公开(公告)号:US06383877B1

    公开(公告)日:2002-05-07

    申请号:US09573268

    申请日:2000-05-18

    Abstract: A method of forming a T-shaped isolation layer, a method of forming an elevated salicide source/drain region using the same, and a semiconductor device having the T-shaped isolation layer are provided. In the method of forming the T-shaped isolation layer, an isolation layer having a narrow trench region in the lower portion thereof and a wide trench region in the upper portion thereof is formed on a semiconductor substrate. Also, in the method of forming the elevated salicide source/drain region, the method of forming the T-shaped isolation layer is used. In particular, conductive impurities can also be implanted into the lower portion of the wide trench region which constitutes the head of the T-shaped isolation layer and is extended to both sides from the upper end of the narrow trench region by controlling the depth of the wide trench region in an ion implantation step for forming the source/drain region.

    Abstract translation: 提供形成T形隔离层的方法,使用该方法形成提高的自对准硅化物源极/漏极区域的方法以及具有T形隔离层的半导体器件。 在形成T形隔离层的方法中,在半导体衬底上形成在其下部具有窄沟槽区和其上部宽沟槽区的隔离层。 此外,在形成升高的自对准硅化物源极/漏极区域的方法中,使用形成T形隔离层的方法。 特别地,也可以将导电杂质注入构成T形隔离层的头部的宽沟槽区域的下部,并且通过控制该窄沟槽区域的深度而从窄沟槽区域的上端延伸到两侧 在用于形成源极/漏极区域的离子注入步骤中形成宽沟槽区域。

    Method of fabricating MOS transistor using total gate silicidation process
    7.
    发明授权
    Method of fabricating MOS transistor using total gate silicidation process 失效
    使用全栅极硅化工艺制造MOS晶体管的方法

    公开(公告)号:US07101776B2

    公开(公告)日:2006-09-05

    申请号:US10806301

    申请日:2004-03-22

    Abstract: There is provided a method of fabricating a MOS transistor using a total gate silicidation process. The method includes forming an insulated gate pattern on a semiconductor substrate. The insulated gate pattern includes a silicon pattern and a sacrificial layer pattern, which are sequentially stacked. Spacers covering sidewalls of the gate pattern are formed, and source/drain regions are formed by injecting impurity ions into the semiconductor substrate using the spacers and the gate pattern as ion injection masks. The silicon pattern is exposed by removing the sacrificial layer pattern on the semiconductor substrate having the source/drain regions. The exposed silicon pattern is fully converted into a gate silicide layer, and concurrently a source/drain silicide layer is selectively formed on the surface of the source/drain regions.

    Abstract translation: 提供了使用总栅极硅化工艺制造MOS晶体管的方法。 该方法包括在半导体衬底上形成绝缘栅极图案。 绝缘栅图案包括依次层叠的硅图案和牺牲层图案。 形成覆盖栅极图案的侧壁的间隔物,并且通过使用间隔物和栅极图案作为离子注入掩模将杂质离子注入到半导体衬底中来形成源极/漏极区域。 通过去除具有源极/漏极区域的半导体衬底上的牺牲层图案来暴露硅图案。 暴露的硅图案完全转换为栅极硅化物层,并且同时在源极/漏极区域的表面上选择性地形成源极/漏极硅化物层。

    Multi-layered structure including an epitaxial layer having a low dislocation defect density, semiconductor device comprising the same, and method of fabricating the semiconductor device
    8.
    发明申请
    Multi-layered structure including an epitaxial layer having a low dislocation defect density, semiconductor device comprising the same, and method of fabricating the semiconductor device 审中-公开
    包括具有低位错缺陷密度的外延层的多层结构以及包含该外延层的半导体器件以及制造该半导体器件的方法

    公开(公告)号:US20050274981A1

    公开(公告)日:2005-12-15

    申请号:US11194529

    申请日:2005-08-02

    Abstract: A multi-layered structure of a semiconductor device includes a substrate, and a heteroepitaxial layer having a low dislocation defect density on the substrate. The heteroepitaxial layer consists of a main epitaxial layer and at least one intermediate epitaxial layer sandwished in the main epitaxial layer. At their interface, the heteroepitaxial layer, i.e., the bottom portion of the main epitaxial layer, and the substrate have different lattice constants. Also, the intermediate epitaxial layer has a different lattice constant from that of the portions of the main epitaxial layer contiguous to the intermediate epitaxial layer. The intermediate epitaxial layer also has a thickness smaller than the net thickness of the main epitaxial layer such that the intermediate epitaxial layer absorbs the strain in the heteroepitaxial layer. Thus, it is possible to obtain a multi-layered structure comprising an epitaxial layer that is relatively thin and has a low dislocation defect density.

    Abstract translation: 半导体器件的多层结构包括衬底和在衬底上具有低位错缺陷密度的异质外延层。 异质外延层由主外延层和在外延层中形成的至少一个中间外延层组成。 在其界面处,异质外延层,即主外延层的底部,以及基板具有不同的晶格常数。 此外,中间外延层具有与与外延层相邻的主外延层的部分的晶格常数不同的晶格常数。 中间外延层的厚度也小于主外延层的净厚度,使得中间外延层吸收异质外延层中的应变。 因此,可以获得包括相对薄且具有低位错缺陷密度的外延层的多层结构。

    Method of fabricating MOS transistor using total gate silicidation process
    9.
    发明申请
    Method of fabricating MOS transistor using total gate silicidation process 失效
    使用全栅极硅化工艺制造MOS晶体管的方法

    公开(公告)号:US20050009265A1

    公开(公告)日:2005-01-13

    申请号:US10806301

    申请日:2004-03-22

    Abstract: There is provided a method of fabricating a MOS transistor using a total gate silicidation process. The method includes forming an insulated gate pattern on a semiconductor substrate. The insulated gate pattern includes a silicon pattern and a sacrificial layer pattern, which are sequentially stacked. Spacers covering sidewalls of the gate pattern are formed, and source/drain regions are formed by injecting impurity ions into the semiconductor substrate using the spacers and the gate pattern as ion injection masks. The silicon pattern is exposed by removing the sacrificial layer pattern on the semiconductor substrate having the source/drain regions. The exposed silicon pattern is fully converted into a gate silicide layer, and concurrently a source/drain silicide layer is selectively formed on the surface of the source/drain regions.

    Abstract translation: 提供了使用总栅极硅化工艺制造MOS晶体管的方法。 该方法包括在半导体衬底上形成绝缘栅极图案。 绝缘栅图案包括依次层叠的硅图案和牺牲层图案。 形成覆盖栅极图案的侧壁的间隔物,并且通过使用间隔物和栅极图案作为离子注入掩模将杂质离子注入到半导体衬底中来形成源极/漏极区域。 通过去除具有源极/漏极区域的半导体衬底上的牺牲层图案来暴露硅图案。 暴露的硅图案完全转换为栅极硅化物层,并且同时在源极/漏极区域的表面上选择性地形成源极/漏极硅化物层。

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