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    CONTACTS FOR SOLAR CELLS
    8.
    发明申请
    CONTACTS FOR SOLAR CELLS 有权
    太阳能电池联系人

    公开(公告)号：US20150179870A1

    公开(公告)日：2015-06-25

    申请号：US14137970

    申请日：2013-12-20

    申请人： Matthieu Moors ,  David D. Smith ,  Gabriel Harley ,  Taeseok Kim

    发明人： Matthieu Moors ,  David D. Smith ,  Gabriel Harley ,  Taeseok Kim

    IPC分类号： H01L31/18 ,  H01L31/0224

    CPC分类号： H01L31/061 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/068 ,  H01L31/1864 ,  Y02E10/547

    摘要： A method of fabricating a solar cell is disclosed. The method can include forming a dielectric region on a surface of a solar cell structure and forming a metal layer on the dielectric layer. The method can also include configuring a laser beam with a particular shape and directing the laser beam with the particular shape on the metal layer, where the particular shape allows a contact to be formed between the metal layer and the solar cell structure.

    摘要翻译： 公开了一种制造太阳能电池的方法。 该方法可以包括在太阳能电池结构的表面上形成电介质区域，并在电介质层上形成金属层。 该方法还可以包括配置具有特定形状的激光束并且将具有特定形状的激光束引导到金属层上，其中特定形状允许在金属层和太阳能电池结构之间形成接触。

    High throughput laser ablation processes and structures for forming contact holes in solar cells
    9.
    发明授权
    High throughput laser ablation processes and structures for forming contact holes in solar cells 有权
    用于在太阳能电池中形成接触孔的高通量激光烧蚀工艺和结构

    公开(公告)号：US08692111B2

    公开(公告)日：2014-04-08

    申请号：US13298136

    申请日：2011-11-16

    申请人： Taeseok Kim ,  Gabriel Harley ,  David D. Smith ,  Peter John Cousins

    发明人： Taeseok Kim ,  Gabriel Harley ,  David D. Smith ,  Peter John Cousins

    IPC分类号： H01L21/00 ,  H01L31/00

    CPC分类号： H01L31/1804 ,  H01L31/022441 ,  H01L31/0682 ,  Y02E10/547 ,  Y02P70/521

    摘要： Contact holes of solar cells are formed by laser ablation to accommodate various solar cell designs. Throughput of the solar cell ablation process is improved by incorporating linear base diffusion regions with narrow width, for example as compared to an overlying metal contact. Throughput of the solar cell ablation process may also be improved by having contact holes to base diffusion regions that are perpendicular to contact holes to emitter diffusion regions. To allow for continuous laser scanning, a laser blocking layer may be located over an interlayer dielectric to prevent contact hole formation on certain regions, such as regions where a metal contact of one polarity may electrically shunt to a diffusion region of opposite polarity. In a hybrid design, a solar cell may have both linear and dotted base diffusion regions. An electro-optical modulator may be employed to allow for continuous laser scanning in dotted base diffusion designs.

    摘要翻译： 通过激光烧蚀形成太阳能电池的接触孔，以适应各种太阳能电池设计。 通过结合具有窄宽度的线性基极扩散区域，例如与覆盖的金属接触相比，改善了太阳能电池烧蚀过程的吞吐量。 通过将与接触孔垂直的基底扩散区域的接触孔设置到发射极扩散区，也可以改善太阳能电池烧蚀过程的吞吐量。 为了允许连续激光扫描，激光阻挡层可以位于层间电介质上方，以防止在某些区域（例如一个极性的金属接触可以电分流到相反极性的扩散区域的区域）上的接触孔形成。 在混合设计中，太阳能电池可以具有线性和点状的基极扩散区域。 可以使用电光调制器来允许在虚点扩散设计中的连续激光扫描。