System and process for high-density, low-energy plasma enhanced vapor phase epitaxy
    8.
    发明授权
    System and process for high-density, low-energy plasma enhanced vapor phase epitaxy 有权
    用于高密度,低能量等离子体增强气相外延的系统和工艺

    公开(公告)号:US09466479B2

    公开(公告)日:2016-10-11

    申请号:US13792238

    申请日:2013-03-11

    申请人: Sulzer Metco AG

    发明人: Hans Von Känel

    摘要: A process for epitaxial deposition of compound semiconductor layers includes several steps. In a first step, a substrate is removably attached to a substrate holder that may be heated. In a second step, the substrate is heated to a temperature suitable for epitaxial deposition. In a third step, substances are vaporized into vapor particles, such substances including at least one of a list of substances, comprising elemental metals, metal alloys and dopants. In a fourth step, the vapor particles are discharged to the deposition chamber. In a fifth step, a pressure is maintained in the range of 10^−3 to 1 mbar in the deposition chamber by supplying a mixture of gases comprising at least one gas, wherein vapor particles and gas particles propagate diffusively. In a sixth optional step, a magnetic field may be applied to the deposition chamber. In a seventh step, the vapor particles and gas particles are activated by a plasma in direct contact with the sample holder. In an eighth step, vapor particles and gas particles are allowed to react, so as to form a uniform epitaxial layer on the heated substrate by low-energy plasma-enhanced vapor phase epitaxy.

    摘要翻译: 化合物半导体层的外延沉积工艺包括几个步骤。 在第一步骤中,基板可移除地附接到可被加热的基板保持器。 在第二步骤中,将衬底加热到​​适于外延沉积的温度。 在第三步骤中,物质被蒸发成蒸汽颗粒,这些物质包括元素列表中的至少一种,包括元素金属,金属合金和掺杂剂。 在第四步骤中,蒸气颗粒被排放到沉积室。 在第五步骤中,通过提供包含至少一种气体的气体的混合物,其中蒸气颗粒和气体颗粒扩散地传播,在沉积室中将压力保持在10 -3 -3 mbar的范围内。 在第六可选步骤中,可以将磁场施加到沉积室。 在第七步骤中,蒸汽颗粒和气体颗粒通过与样品保持器直接接触的等离子体激活。 在第八步骤中,允许蒸气颗粒和气体颗粒反应,以便通过低能量等离子体增强的气相外延在加热的衬底上形成均匀的外延层。

    SEMICONDUCTOR ARRANGEMENT AND FORMATION THEREOF
    10.
    发明申请
    SEMICONDUCTOR ARRANGEMENT AND FORMATION THEREOF 有权
    半导体布置及其形成

    公开(公告)号:US20150349059A1

    公开(公告)日:2015-12-03

    申请号:US14289911

    申请日:2014-05-29

    摘要: A semiconductor arrangement and method of formation are provided. The semiconductor arrangement includes a semiconductor column having a first portion comprising a first material, a second portion comprising a second material, and a third portion comprising a third material, where the second material is different than the first material and the third material. The first portion, the second portion, and the third portion have substantially equal widths. A first abrupt interface exists between a top surface of the first portion and a bottom surface of the second portion, and a second abrupt interface exists between a top surface of the second portion and a bottom surface of the third portion, in an embodiment. In an embodiment, the column forms part of a transistor where the first portions functions as a source or drain, the second portion functions as a channel, and the third portion functions as a drain or source.

    摘要翻译: 提供了半导体布置和形成方法。 半导体装置包括具有第一部分的半导体柱,第一部分包括第一材料,第二部分包括第二材料,第三部分包括第三材料,其中第二材料不同于第一材料和第三材料。 第一部分,第二部分和第三部分具有基本相等的宽度。 在一个实施例中,在第一部分的顶表面和第二部分的底表面之间存在第一突然界面,并且在第二部分的顶表面和第三部分的底表面之间存在第二突然界面。 在一个实施例中,列形成晶体管的一部分,其中第一部分用作源极或漏极,第二部分用作沟道,第三部分用作漏极或源极。