SINGLE-CRYSTAL SILICON PULLING SILICA CONTAINER AND PRODUCING METHOD THEREOF
    22.
    发明申请
    SINGLE-CRYSTAL SILICON PULLING SILICA CONTAINER AND PRODUCING METHOD THEREOF 审中-公开
    单晶硅拉丝二氧化硅容器及其制造方法

    公开(公告)号:US20140182510A1

    公开(公告)日:2014-07-03

    申请号:US14122509

    申请日:2013-02-19

    Inventor: Shigeru Yamagata

    Abstract: A single-crystal silicon pulling silica container including: a transparent silica glass layer in the inner side of the silica container; and an opaque silica glass layer containing gaseous bubbles in the outer side of the silica container, wherein the transparent layer constitutes of a high-OH group layer placed on an inner surface side of the silica container containing the OH group at a concentration of 200 to 2000 ppm by mass and a low-OH group layer having the OH group concentration lower than the high-OH group layer containing Ba at a concentration of 50 to 2000 ppm by mass. Resulting in the silica container used for pulling single-crystal silicon, providing the silica container improves etching corrosion resistance of the container inner surface to silicon melt when the entire inner surface of transparent silica glass of the container is crystallized short after using the container and method for such silica container.

    Abstract translation: 一种单晶硅拉硅石容器,其包括:二氧化硅容器的内侧的透明石英玻璃层; 以及在二氧化硅容器的外侧含有气泡的不透明二氧化硅玻璃层,其中,所述透明层构成高OH基层,所述高OH基层位于含有浓度为200〜200的OH基团的二氧化硅容器的内表面侧 2000质量ppm,OH基浓度低于含有浓度为50〜2000质量ppm的Ba的高OH基层的低-OH基层。 导致用于拉拔单晶硅的二氧化硅容器,当容器内透明石英玻璃的整个内表面在使用容器之后结晶短时,提供二氧化硅容器提高容器内表面对硅熔体的耐蚀刻腐蚀性和方法 用于这种二氧化硅容器。

    Quartz glass crucible and method for the production thereof
    23.
    发明申请
    Quartz glass crucible and method for the production thereof 有权
    石英玻璃坩埚及其生产方法

    公开(公告)号:US20050178319A1

    公开(公告)日:2005-08-18

    申请号:US10512114

    申请日:2003-04-03

    Abstract: A known quartz glass crucible for crystal pulling consists of a crucible wall, having an outer layer which is provided in an external area thereof with a crystallisation promoter which results in crystallisation of quartz glass, forming cristobalite when the quartz glass crucible is heated according to specified use in crystal pulling. The aim of the invention is to provide a quartz glass crucible which has a long service life. As a result, the crystallisation promoter contains, in addition to a silicon, a first component which acts as a reticulating agent in quartz glass and a second component which is free of alkali metals and which acts as an agent forming separating points in quartz glass. The above mentioned components are contained and incorporated into a doping area (8) of the outer layer (6) having a layer thickness of more than 0.2 mm.

    Abstract translation: 已知的用于晶体拉制的石英玻璃坩埚由坩埚壁组成,外壁具有结晶促进剂,结晶促进剂导致石英玻璃结晶,当石英玻璃坩埚根据规定加热时形成方英石 用于水晶拉。 本发明的目的是提供一种使用寿命长的石英玻璃坩埚。 结果,除了硅之外,结晶促进剂还含有在石英玻璃中充当网状剂的第一组分和不含碱金属的第二组分,其作为在石英玻璃中形成分离点的试剂。 上述组分被包含并且结合到层厚度大于0.2mm的外层(6)的掺杂区域(8)中。

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