QUALITY CONTROL PROCESS FOR UMG-SI FEEDSTOCK
    2.
    发明申请
    QUALITY CONTROL PROCESS FOR UMG-SI FEEDSTOCK 失效
    UMG-SI FEEDSTOCK质量控制程序

    公开(公告)号:US20100327890A1

    公开(公告)日:2010-12-30

    申请号:US12770688

    申请日:2010-04-29

    IPC分类号: G01R31/26

    摘要: A quality control process for determining the concentrations of boron and phosphorous in a UMG-Si feedstock batch is provided. A silicon test ingot is formed by the directional solidification of molten UMG-Si from a UMG-Si feedstock batch. The resistivity of the silicon test ingot is measured from top to bottom. Then, the resistivity profile of the silicon test ingot is mapped. From the resistivity profile of the silicon test ingot, the concentrations of boron and phosphorous of the UMG-Si silicon feedstock batch are calculated. Additionally, multiple test ingots may be grown simultaneously, with each test ingot corresponding to a UMG-Si feedstock batch, in a multi-crucible crystal grower.

    摘要翻译: 提供了一种用于测定UMG-Si原料批中硼和磷浓度的质量控制过程。 通过来自UMG-Si原料批次的熔融UMG-Si的定向凝固形成硅测试锭。 硅测试块的电阻率从上到下测量。 然后,映射硅测试锭的电阻率分布。 根据硅试块的电阻率分布,计算出UMG-Si硅原料批次中硼和磷的浓度。 另外,在多坩埚晶体种植者中,可以同时生长多个测试锭,每个测试锭对应于UMG-Si原料批次。

    Bifacial solar cells with overlaid back grid surface
    6.
    发明授权
    Bifacial solar cells with overlaid back grid surface 失效
    双面太阳能电池具有覆盖的背面网格表面

    公开(公告)号:US08298850B2

    公开(公告)日:2012-10-30

    申请号:US12456378

    申请日:2009-06-15

    IPC分类号: H01L21/00

    摘要: A simplified manufacturing process and the resultant bifacial solar cell (BSC) are provided, the simplified manufacturing process reducing manufacturing costs. The BSC includes an active region located on the front surface of the substrate, formed for example by a phosphorous diffusion step. After removing the PSG, assuming phosphorous diffusion, and isolating the front junction, dielectric layers are deposited on the front and back surfaces. Contact grids are formed, for example by screen printing. Prior to depositing the back surface dielectric, a metal grid may be applied to the back surface, the back surface contact grid registered to, and alloyed to, the metal grid during contact firing.

    摘要翻译: 提供了简化的制造工艺和所得的双面太阳能电池(BSC),简化的制造工艺降低了制造成本。 BSC包括位于基板的前表面上的有源区,例如通过磷扩散步骤形成。 在去除PSG之后,假设磷扩散并隔离前端,电介质层沉积在前表面和后表面上。 形成接触网格,例如通过丝网印刷。 在沉积后表面电介质之前,可以在接触点火期间将金属网格施加到后表面,后表面接触栅格,注册到金属栅格并与之合并。

    Bifacial solar cells with overlaid back grid surface
    9.
    发明申请
    Bifacial solar cells with overlaid back grid surface 失效
    双面太阳能电池具有覆盖的背面网格表面

    公开(公告)号:US20100275983A1

    公开(公告)日:2010-11-04

    申请号:US12456378

    申请日:2009-06-15

    IPC分类号: H01L31/0352 H01L31/0232

    摘要: A simplified manufacturing process and the resultant bifacial solar cell (BSC) are provided, the simplified manufacturing process reducing manufacturing costs. The BSC includes an active region located on the front surface of the substrate, formed for example by a phosphorous diffusion step. After removing the PSG, assuming phosphorous diffusion, and isolating the front junction, dielectric layers are deposited on the front and back surfaces. Contact grids are formed, for example by screen printing. Prior to depositing the back surface dielectric, a metal grid may be applied to the back surface, the back surface contact grid registered to, and alloyed to, the metal grid during contact firing.

    摘要翻译: 提供了简化的制造工艺和所得的双面太阳能电池(BSC),简化的制造工艺降低了制造成本。 BSC包括位于基板的前表面上的有源区,例如通过磷扩散步骤形成。 在去除PSG之后,假设磷扩散并隔离前端,电介质层沉积在前表面和后表面上。 形成接触网格,例如通过丝网印刷。 在沉积后表面电介质之前,可以在接触点火期间将金属网格施加到后表面,后表面接触栅格,注册到金属栅格并与之合并。