Method for the manufacture of a pn junction with high breakdown voltage
    12.
    发明授权
    Method for the manufacture of a pn junction with high breakdown voltage 失效
    具有高击穿电压的pn结的制造方法

    公开(公告)号:US4672738A

    公开(公告)日:1987-06-16

    申请号:US776161

    申请日:1985-09-13

    Abstract: A method for the manufacture of a pn junction having a high breakdown voltage at the boundary surface of a semiconductor body, utilizing a mask which has a relatively large opening for introducing a dopant therethrough into the semiconductor body, the mask having a marginal edge which extends laterally beyond the edge of the relatively large opening. In the marginal edge, the mask is provided with smaller, auxiliary openings, the openings being sized and spaced such that lesser amounts of dopant pass through the opening as the distance of the auxiliary openings from the edge of the relatively larger opening increases. Upon introducing the dopant into the semiconductor body through the mask, there is generated a doping profile which gradually approaches the boundary surface with increasing distance from the edge of the relatively large opening.

    Abstract translation: 一种用于制造在半导体本体的边界表面具有高击穿电压的pn结的方法,利用具有相对较大的开口的掩模,用于将掺杂剂引入到半导体本体中,所述掩模具有延伸的边缘 横向超过相对较大开口的边缘。 在边缘处,掩模设置有较小的辅助开口,开口的尺寸和间隔使得当辅助开口距相对较大开口的边缘的距离增加时,较少量的掺杂剂通过开口。 当通过掩模将掺杂剂引入半导体本体时,产生掺杂分布,其随着距离相对大的开口的边缘的距离增加而逐渐接近边界表面。

    Bipolar transistor comprising carbon-doped semiconductor
    14.
    发明授权
    Bipolar transistor comprising carbon-doped semiconductor 有权
    包含碳掺杂半导体的双极晶体管

    公开(公告)号:US07420228B2

    公开(公告)日:2008-09-02

    申请号:US11246420

    申请日:2005-10-07

    Abstract: A bipolar transistor comprising a collector region of a first conduction type, and a subcollector region of the first conduction type at a first side of the collector region. The transistor further includes a base region of the second conduction type provided at a second side of the collector region, and an emitter region of the first conduction type which is provided above the base region on the side remote from the collection region. A carbon-doped semiconductor region is provided on the first side alongside the collector region. The bipolar transistor is characterized in that the carbon-doped semiconductor region has a carbon concentration of 1019-1021 cm−3 and the base region has a smaller cross section than the collector region and the collector region has, in the overlap region with the base region, a region having an increased doping compared with the remaining region. The carbon-doped semiconductor region prevents an outdiffusion from the zone of the collector region into the remaining region of the collector region.

    Abstract translation: 包括第一导电类型的集电极区域和在集电极区域的第一侧的第一导电类型的子集电极区域的双极晶体管。 晶体管还包括设置在集电极区域的第二侧的第二导电类型的基极区域和设置在远离收集区域的一侧的基极区域上方的第一导电类型的发射极区域。 在集电极区域旁边的第一侧设置碳掺杂半导体区域。 双极晶体管的特征在于,碳掺杂半导体区域的碳浓度为10〜20±0.01cm -3,基极 区域具有比集电极区域更小的横截面,并且在与基极区域的重叠区域中具有与剩余区域相比具有增加的掺杂的区域。 碳掺杂半导体区域防止从集电极区域向集电极区域的剩余区域的扩散。

    Memory device for storing electrical charge and method for fabricating the same
    15.
    发明授权
    Memory device for storing electrical charge and method for fabricating the same 失效
    用于存储电荷的存储器件及其制造方法

    公开(公告)号:US06995416B2

    公开(公告)日:2006-02-07

    申请号:US10853734

    申请日:2004-05-26

    Abstract: The invention provides a memory device for storing electrical charge, which has, as memory elements, tube elements applied on an electrode layer and connect-connected thereto. The tube elements are provided with a dielectric coating, a filling material for filling the space between the tube elements being provided. A counter-electrode connected to the filling material is formed such that an electrical capacitor for storing electrical charge is formed between the electrode layer and the counter-electrode. The tube elements advantageously comprise carbon nanotubes, as a result of which the capacitance of the capacitor on account of a drastic increase in the area of the capacitor electrode surface.

    Abstract translation: 本发明提供一种用于存储电荷的存储装置,其具有作为存储元件的施加在电极层上并连接到其上的管元件。 管元件设置有电介质涂层,用于填充管元件之间的空间的填充材料。 与填充材料连接的对电极形成为在电极层和对电极之间形成用于存储电荷的电容器。 管元件有利地包括碳纳米管,结果由于电容器电极表面的面积急剧增加,电容器的电容。

    Bipolar transistor
    16.
    发明申请
    Bipolar transistor 有权
    双极晶体管

    公开(公告)号:US20050006723A1

    公开(公告)日:2005-01-13

    申请号:US10912344

    申请日:2004-08-04

    CPC classification number: H01L29/66287 H01L29/7322

    Abstract: A bipolar transistor includes a first layer with a collector. A second layer has a base cutout for a base. A third layer includes a lead for the base. The third layer is formed with an emitter cutout for an emitter. An undercut is formed in the second layer adjoining the base cutout. The base is at least partially located in the undercut. In order to obtain a low transition resistance between the lead and the base, an intermediate layer is provided between the first and the second layer. The intermediate layer is selectively etchable with respect to the second layer. At least in the region of the undercut between the lead and the base, a base connection zone is provided that can be adjusted independent of other production conditions. The intermediate layer is removed in a contact region with the base.

    Abstract translation: 双极晶体管包括具有集电极的第一层。 第二层具有用于基座的基部切口。 第三层包括用于底座的引线。 第三层形成有用于发射极的发射极切口。 在与基座切口相邻的第二层中形成底切。 基部至少部分位于底切中。 为了在引线和基底之间获得低的过渡电阻,在第一和第二层之间设置中间层。 中间层相对于第二层可选择性地蚀刻。 至少在引线和基座之间的底切区域中,提供可以独立于其他生产条件进行调节的基础连接区域。 在与基底的接触区域中去除中间层。

    Method for manufacturing rod-shaped silicon structures
    20.
    发明授权
    Method for manufacturing rod-shaped silicon structures 失效
    棒状硅结构的制造方法

    公开(公告)号:US5449310A

    公开(公告)日:1995-09-12

    申请号:US222597

    申请日:1994-04-04

    Abstract: Rod-shaped or cylindrical structures in the nm range on a substrate of silicon are manufactured. A first cylinder of silicon is selectively epitaxially deposited in the hole of a mask layer of oxide, and the mask layer is removed. The silicon is then oxidized to form an oxide layer having such a thickness that a thinner, second cylinder of silicon having practically the same height as the first cylinder remains. In a last step, this oxide layer is removed, so that the second cylinder forms a freestanding silicon rod on the surface of the substrate.

    Abstract translation: 制造在硅衬底上的nm范围内的棒状或圆柱形结构。 硅的第一圆柱体被选择性地外延沉积在氧化物的掩模层的孔中,并且去除掩模层。 然后将硅氧化以形成具有这样厚度的氧化物层,使得具有与第一气缸几乎具有相同高度的较薄的第二硅柱体保持不变。 在最后一步中,去除该氧化物层,使得第二圆柱体在基底表面上形成独立的硅棒。

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