Crucible-free zone refining of semiconductor material including annular
support member
    1.
    发明授权
    Crucible-free zone refining of semiconductor material including annular support member 失效
    包括环形支撑构件的半导体材料的无坩埚区精炼

    公开(公告)号:US4140571A

    公开(公告)日:1979-02-20

    申请号:US840887

    申请日:1977-10-11

    摘要: A process for the crucible-free zone pulling of a polycrystalline rod heldertically, together with a seed crystal fixed at its lower end, in which a melting zone is produced by means of an induction heating coil surrounding the rod, which zone, by means of relative movement of the coil and rod, traverses the entire length of the rod starting from the seed crystal, characterized in that after attaching the seed crystal to the rod, a support member is moved, below the induction heating coil, towards the rod, which support member rests gently against the rod and after being positioned, solidifies to form a firm support for the rod. A device for carrying out the process is also included.

    摘要翻译: 一种无坩埚区域牵引垂直保持的多晶棒的方法,以及固定在其下端的晶种,其中通过围绕杆的感应加热线圈产生熔融区,该区域通过装置 所述线圈和所述杆的相对运动通过从所述晶种开始的所述杆的整个长度,其特征在于,在将所述晶种连接到所述杆之后,支撑构件在所述感应加热线圈下方朝向所述杆移动, 该支撑构件轻轻靠在杆上并在定位之后固化以形成用于杆的坚固支撑。 还包括用于执行该过程的设备。

    Device for the support of a crystalline rod
    2.
    发明授权
    Device for the support of a crystalline rod 失效
    用于支撑结晶棒的装置

    公开(公告)号:US4060392A

    公开(公告)日:1977-11-29

    申请号:US687711

    申请日:1976-05-19

    摘要: Device for supporting a crystalline rod during crucible-free zone melting ich comprises a zone-drawing apparatus, a rotating shaft in said apparatus, means for fastening the shaft in the apparatus, a screw bolt mounted for rotation with the shaft, the top end of the screw bolt having a bore for receiving a seed crystal, two or more swivel arms mounted adjacent to the bore and capable of being opened and closed, a ring coaxially surrounding the bolt and means for vertically moving the ring.

    摘要翻译: 用于在无坩埚区域熔化期间支撑结晶棒的装置,其包括区域拉伸装置,所述装置中的旋转轴,用于将轴紧固在装置中的装置,安装成与轴一起旋转的螺栓, 所述螺栓具有用于接收晶种的孔,邻近所述孔安装并能够打开和关闭的两个或更多个旋转臂,同轴地围绕所述螺栓的环和用于垂直移动所述环的装置。

    Process and apparatus for the semicontinuous production of silicon
moldings
    4.
    发明授权
    Process and apparatus for the semicontinuous production of silicon moldings 失效
    用于半连续生产硅模制品的工艺和设备

    公开(公告)号:US4175610A

    公开(公告)日:1979-11-27

    申请号:US925506

    申请日:1978-07-17

    CPC分类号: C30B29/06 C30B11/00

    摘要: The invention relates to a process and apparatus for manufacturing siliconastings or moldings, having a columnar structure of single-crystal regions of crystal with a preferential crystallographic orientation, and which can be manufactured cheaply and in large numbers in a semi-continuous mode of production. Liquid silicon is cast in a casting station, under an inert gas and preferably under reduced pressure, preferably in graphite molds which are exposed to a temperature gradient of 200.degree. to 1,000.degree. C. After cooling, the silicon is withdrawn automatically via a transport chamber connected to the casting station into special cooling stations, while the casting station is reloaded with an empty mold for repeating the process. The silicon blocks which have preferably been produced by this procedure are use as basic material for inexpensive solar cells having efficiencies of more than 10%, after they have been sawn into individual small wafers and have been doped and lead-bonded.

    摘要翻译: 本发明涉及一种用于制造硅铸件或模制品的方法和装置,其具有具有优先晶体取向的晶体单晶区域的柱状结构,并且可以以半连续的生产方式廉价地制造 。 液体硅在惰性气体中,优选在减压下浇铸,优选在暴露于200-1000℃的温度梯度的石墨模具中浇铸。冷却后,硅经由输送室 连接到铸造站到特殊的冷却站,而铸造站重新装入空模以重复该过程。 优选通过该方法制造的硅块在已经被锯切成单独的小晶片并已经被掺杂和引线键合之后,被用作效率高于10%的廉价太阳能电池的基本材料。