METHOD TO EVALUATE EFFECTIVENESS OF SUBSTRATE CLEANNESS AND QUANTITY OF PIN HOLES IN AN ANTIREFLECTIVE COATING OF A SOLAR CELL
    7.
    发明申请
    METHOD TO EVALUATE EFFECTIVENESS OF SUBSTRATE CLEANNESS AND QUANTITY OF PIN HOLES IN AN ANTIREFLECTIVE COATING OF A SOLAR CELL 有权
    用于评估太阳能电池的抗反射涂层中底物清洁度和针孔数量的有效性的方法

    公开(公告)号:US20120325316A1

    公开(公告)日:2012-12-27

    申请号:US13604230

    申请日:2012-09-05

    IPC分类号: H01L31/0232

    摘要: A method to determine the cleanness of a semiconductor substrate and the quantity/density of pin holes that may exist within a patterned antireflective coating (ARC) is provided. Electroplating is employed to monitor the changes in the porosity of the ARC caused by the pin holes during solar cell manufacturing. In particular, electroplating a metal or metal alloy to form a metallic grid on an exposed front side surface of a substrate also fills the pin holes. The quantity/density of metallic filled pin holes (and hence the number of pin holes) in the patterned ARC can then be determined.

    摘要翻译: 提供了确定半导体衬底的清洁度的方法以及可能存在于图案化抗反射涂层(ARC)内的针孔的数量/密度。 使用电镀来监测由太阳能电池制造过程中的针孔引起的ARC孔隙度的变化。 特别地,在基板的暴露的前侧表面上电镀金属或金属合金以形成金属网格也填充针孔。 然后可以确定图案化的ARC中的金属填充针孔的数量/密度(以及因此的孔的数量)。