Method for fabricating trench capacitors and semiconductor device with trench capacitors
    42.
    发明授权
    Method for fabricating trench capacitors and semiconductor device with trench capacitors 失效
    制造沟槽电容器的方法和具有沟槽电容器的半导体器件

    公开(公告)号:US06878600B2

    公开(公告)日:2005-04-12

    申请号:US10436426

    申请日:2003-05-12

    CPC classification number: H01L27/1087

    Abstract: A method for fabricating trench capacitors having trenches with mesopores, the trench capacitors being suitable both for discrete capacitors and for integrated semiconductor memories, significantly increases the surface area for electrodes of the capacitors and, hence, the capacitance thereof. The mesopores, which are small woodworm-hole-like channels having diameters from approximately 2 to 50 nm, are fabricated electrochemically. It is, thus, possible to produce capacitances with a large capacitance-to-volume ratio. Growth of the mesopores stops, at the latest, when the mesopores reach a minimum distance from another mesopore or adjacent trench (self-passivation). As such, the formation of “short circuits” between two adjacent mesopores can be avoided in a self-regulated manner. Furthermore, a semiconductor device is provided including at least one trench capacitor on the front side of a semiconductor substrate fabricated by the method according to the invention.

    Abstract translation: 一种用于制造具有中孔的沟槽的沟槽电容器的方法,所述沟槽电容器适用于分立电容器和集成半导体存储器,显着增加了电容器的电极的表面积,并因此显着增加了其电容。 电化学地制造直径为约2〜50nm的小木蛾孔状通道的中孔。 因此,可以产生具有大的电容容积比的电容。 当介孔达到与另一个中孔或相邻沟槽的最小距离(自钝化)时,介孔的生长最终停止。 因此,可以以自我调节的方式避免在两个相邻介孔之间形成“短路”。 此外,提供一种半导体器件,其包括通过根据本发明的方法制造的半导体衬底的前侧上的至少一个沟槽电容器。

    Electrically programmable non-volatile memory cell configuration
    46.
    发明授权
    Electrically programmable non-volatile memory cell configuration 有权
    电可编程非易失性存储单元配置

    公开(公告)号:US06215140B1

    公开(公告)日:2001-04-10

    申请号:US09398691

    申请日:1999-09-20

    CPC classification number: H01L21/8229 H01L27/1021

    Abstract: A memory cell configuration in a semiconductor substrate is proposed, in which the semiconductor substrate is of the first conductivity type. Trenches which run parallel to one another are incorporated in the semiconductor substrate, and first address lines run along the side walls of the trenches. Second address lines are formed on the semiconductor substrate, transversely with respect to the trenches. Semiconductor substrate regions, in which a diode and a dielectric whose conductivity can be changed are arranged, are located between the first address lines and the second address lines. A suitable current pulse can be used to produce a breakdown in the dielectric, with information thus being stored in the dielectric.

    Abstract translation: 提出半导体衬底中的存储单元结构,其中半导体衬底是第一导电类型。 相互平行延伸的沟槽并入半导体衬底中,并且第一地址线沿着沟槽的侧壁延伸。 第二地址线在半导体衬底上相对于沟槽横向地形成。 布置有可以改变导电性的二极管和电介质的半导体衬底区域位于第一地址线和第二地址线之间。 可以使用合适的电流脉冲来产生电介质中的击穿,由此将信息存储在电介质中。

    Method for fabricating a dopant region
    48.
    发明授权
    Method for fabricating a dopant region 有权
    掺杂剂区域的制造方法

    公开(公告)号:US6133126A

    公开(公告)日:2000-10-17

    申请号:US398688

    申请日:1999-09-20

    CPC classification number: H01L21/76888 H01L21/2256 H01L27/105 H01L27/1052

    Abstract: A method for fabricating a dopant region is disclosed. The dopant region is formed by providing a semiconductor substrate that has a surface. An electrically insulating intermediate layer is applied to the surface. A doped semiconductor layer is then applied to the electrically insulating intermediate layer, the semiconductor layer being of a first conductivity type and contains a dopant of the first conductivity type. A temperature treatment of the semiconductor substrate at a predefined diffusion temperature is performed, so that the dopant diffuses partially out of the semiconductor layer through the intermediate layer into the semiconductor substrate and forms there a dopant region of the first conductivity type. The electrical conductivity of the intermediate layer is modified, so that an electrical contact between the semiconductor substrate and the semiconductor layer is produced through the intermediate layer.

    Abstract translation: 公开了一种制造掺杂剂区域的方法。 通过提供具有表面的半导体衬底形成掺杂剂区域。 将电绝缘的中间层施加到表面。 然后将掺杂半导体层施加到电绝缘中间层,所述半导体层是第一导电类型并且包含第一导电类型的掺杂剂。 执行预定扩散温度下的半导体衬底的温度处理,使得掺杂剂从半导体层中部分扩散通过中间层进入半导体衬底,并在其上形成第一导电类型的掺杂区域。 改变中间层的导电性,从而通过中间层产生半导体衬底和半导体层之间的电接触。

    Process for Simultaneous Deposition of Crystalline and Amorphous Layers with Doping
    50.
    发明申请
    Process for Simultaneous Deposition of Crystalline and Amorphous Layers with Doping 有权
    同时沉积具有掺杂的结晶和无定形层的方法

    公开(公告)号:US20110133188A1

    公开(公告)日:2011-06-09

    申请号:US13026326

    申请日:2011-02-14

    Abstract: One embodiment of the present invention relates to method for the concurrent deposition of multiple different crystalline structures on a semiconductor body utilizing in-situ differential epitaxy. In one embodiment of the present invention a preparation surface is formed, resulting in two distinct crystalline regions, a monocrystalline silicon substrate region and an isolating layer region. A monocrystalline silicon layer and an amorphous silicon layer are concurrently formed directly onto the preparation surface in the monocrystalline silicon substrate region and the isolating layer region, respectively. Deposition comprises the formation of two or more sub-layers. The process parameters can be varied for each individual sub-layer to optimize deposition characteristics.

    Abstract translation: 本发明的一个实施例涉及利用原位差分外延在半导体主体上同时沉积多个不同结晶结构的方法。 在本发明的一个实施方案中,形成制备表面,得到两个不同的结晶区域,单晶硅衬底区域和隔离层区域。 单晶硅层和非晶硅层同时直接分布在单晶硅衬底区域和隔离层区域的制备表面上。 沉积包括形成两个或更多个子层。 可以为每个单独的子层改变工艺参数以优化沉积特性。

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