Wafer rack provided with a gas distribution device
    4.
    发明授权
    Wafer rack provided with a gas distribution device 有权
    晶圆架设有气体分配装置

    公开(公告)号:US06209221B1

    公开(公告)日:2001-04-03

    申请号:US09312243

    申请日:1999-05-14

    CPC classification number: C23C16/455 C23C16/4583

    Abstract: Wafer rack consisting of a carrier frame provided with accommodations for at least two wafers. To provide uniform distribution of gas over said wafers a gas distribution device is fitted at least above each wafer, which gas distribution device is connected to the gas supply for the reactor in which the wafer rack is placed. Connection to such a gas supply can be via coupling of the wafer rack to a part of said reactor.

    Abstract translation: 晶圆架由承载框架组成,该框架设置有至少两个晶片的住宅。 为了在所述晶片上提供气体的均匀分布,气体分配装置至少装配在每个晶片的上方,该气体分配装置连接到其中放置晶片架的反应器的气体供应。 与这种气体供应的连接可以通过将晶片齿条连接到所述反应器的一部分。

    Safe arsenic gas phase doping
    5.
    发明授权
    Safe arsenic gas phase doping 有权
    安全砷气相掺杂

    公开(公告)号:US06413844B1

    公开(公告)日:2002-07-02

    申请号:US09758330

    申请日:2001-01-10

    CPC classification number: C23C16/4408 C23C16/0218 C30B31/06 H01L21/223

    Abstract: A method is described for safe gas phase doping a semiconductor with arsenic. The substrate including a semiconductor structure is exposed to arsine at elevated temperatures within a reaction chamber. Thereafter, prior to opening the reaction chamber, a sealant layer is formed over the semiconductor structure. The sealant layer inhibits outdiffusion of arsenic when the substrate is unloaded from the reaction chamber, enabling safe unloading at relatively high temperatures. In the illustrated embodiments, the sealant layer can be formed by oxidation, nitridation or chemical vapor deposition. Forming the sealant layer can be conducted prior to, during or after cooling the substrate to an unloading temperature. Preferably, a gettering step is conducted after gas phase doping and prior to forming the sealant layer, such as by exposing the substrate to HCl vapor.

    Abstract translation: 描述了用砷进行安全气相掺杂半导体的方法。 包括半导体结构的衬底在反应室内的升高的温度下暴露于胂。 此后,在打开反应室之前,在半导体结构上形成密封剂层。 当基材从反应室卸载时,密封剂层抑制砷的扩散,使得在较高温度下能够安全卸载。 在所示实施例中,密封剂层可以通过氧化,氮化或化学气相沉积形成。 密封剂层的形成可以在冷却基板之前,期间或之后进行到卸载温度。 优选地,吸气步骤在气相掺杂之后并且在形成密封剂层之前进行,例如通过将衬底暴露于HCl蒸气。

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