Leave-In Etch Mask for Foil-Based Metallization of Solar Cells
    25.
    发明申请
    Leave-In Etch Mask for Foil-Based Metallization of Solar Cells 审中-公开
    用于太阳能电池箔基金属化的离子蚀刻掩模

    公开(公告)号:US20160380127A1

    公开(公告)日:2016-12-29

    申请号:US14752828

    申请日:2015-06-26

    摘要: Approaches for fabricating foil-based metallization of solar cells based on a leave-in etch mask, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a back surface and an opposing light-receiving surface. A plurality of alternating N-type and P-type semiconductor regions is disposed in or above the back surface of the substrate. A conductive contact structure is disposed on the plurality of alternating N-type and P-type semiconductor regions. The conductive contact structure includes metal foil portions in alignment with corresponding ones of the alternating N-type and P-type semiconductor regions. A patterned wet etchant-resistant polymer layer is disposed on the conductive contact structure. Portions of the patterned wet etchant-resistant polymer layer are disposed on and in alignment with the metal foil portions.

    摘要翻译: 描述了基于留下蚀刻掩模和所得到的太阳能电池来制造基于箔的金属化太阳能电池的方法。 在一个示例中,太阳能电池包括具有背面和相对的光接收表面的基板。 多个交替的N型和P型半导体区域设置在衬底的背面中或上方。 导电接触结构设置在多个交替的N型和P型半导体区域上。 导电接触结构包括与交替的N型和P型半导体区域中的对应的金属箔部分对准的金属箔部分。 图案化的耐湿蚀刻剂聚合物层设置在导电接触结构上。 图案化的耐湿蚀刻剂聚合物层的一部分设置在金属箔部分上并与之对齐。

    In-cell bypass diode
    27.
    发明授权
    In-cell bypass diode 有权
    单元旁路二极管

    公开(公告)号:US09425337B2

    公开(公告)日:2016-08-23

    申请号:US14472232

    申请日:2014-08-28

    摘要: A solar cell can include a built-in bypass diode. In one embodiment, the solar cell can include an active region disposed in or above a first portion of a substrate and a bypass diode disposed in or above a second portion of the substrate. The first and second portions of the substrate can be physically separated with a groove. A metallization structure can couple the active region to the bypass diode.

    摘要翻译: 太阳能电池可以包括内置旁路二极管。 在一个实施例中,太阳能电池可以包括设置在衬底的第一部分中或上方的有源区和设置在衬底的第二部分中或之上的旁路二极管。 衬底的第一和第二部分可以用凹槽物理分离。 金属化结构可以将有源区域耦合到旁路二极管。

    FOIL TRIM APPROACHES FOR FOIL-BASED METALLIZATION OF SOLAR CELLS
    28.
    发明申请
    FOIL TRIM APPROACHES FOR FOIL-BASED METALLIZATION OF SOLAR CELLS 审中-公开
    用于基于玻璃基金属化的太阳能电池的薄膜研磨方法

    公开(公告)号:US20160133759A1

    公开(公告)日:2016-05-12

    申请号:US14997368

    申请日:2016-01-15

    IPC分类号: H01L31/02

    摘要: Foil trim approaches for the foil-based metallization of solar cells and the resulting solar cells are described. For example, a method involves attaching a metal foil sheet to a metallized surface of an underlying supported wafer to provide a unified pairing of the metal foil sheet and the wafer. Subsequent to attaching the metal foil sheet, a portion of the metal foil sheet is laser scribed from above to form a groove in the metal foil sheet. Subsequent to laser scribing the metal foil sheet, the unified pairing of the metal foil sheet and the wafer is rotated to provide the metal sheet below the wafer. Subsequent to the rotating, the unified pairing of the metal foil sheet and the wafer is placed on a chuck with the metal sheet below the wafer. The metal foil sheet is torn at least along the groove to trim the metal foil sheet.

    摘要翻译: 描述了用于太阳能电池的箔基金属化和所得到的太阳能电池的箔修剪方法。 例如,一种方法包括将金属箔片附着到下面的支撑晶片的金属化表面上,以提供金属箔片和晶片的统一配对。 在附着金属箔片之后,金属箔片的一部分从上方被激光划刻以在金属箔片中形成凹槽。 在金属箔片的激光划线之后,金属箔片和晶片的统一配对旋转,以在金属片下面提供金属片。 在旋转之后,将金属箔片和晶片的统一配对放置在具有金属片在晶片下方的卡盘上。 金属箔片至少沿着沟槽撕开以修整金属箔片。

    METALLIZATION OF SOLAR CELLS
    29.
    发明申请
    METALLIZATION OF SOLAR CELLS 有权
    太阳能电池的金属化

    公开(公告)号:US20150280029A1

    公开(公告)日:2015-10-01

    申请号:US14229759

    申请日:2014-03-28

    摘要: Approaches for the metallization of solar cells and the resulting solar cells are described. In an example, a method of fabricating a solar cell involves forming a plurality of alternating N-type and P-type regions in or above a substrate. The method also involves forming a metal seed layer on the plurality of alternating N-type and P-type regions. The method also involves patterning at least a portion of the metal seed layer at regions in alignment with locations between the alternating N-type and P-type regions. The method also involves, subsequent to the patterning, etching to form trenches at the locations between the alternating N-type and P-type regions, isolating the alternating N-type and P-type regions from one another.

    摘要翻译: 描述了用于太阳能电池的金属化和所得到的太阳能电池的方法。 在一个实例中,制造太阳能电池的方法包括在衬底中或上方形成多个交替的N型和P型区域。 该方法还涉及在多个交替的N型和P型区域上形成金属种子层。 该方法还包括在与交替的N型和P型区域之间的位置对准的区域处图案化金属种子层的至少一部分。 该方法还包括在图案化之后,在交替的N型和P型区域之间的位置处进行蚀刻以形成沟槽,将交替的N型和P型区彼此隔离。

    SOLAR CELL HAVING A PLURALITY OF SUB-CELLS COUPLED BY A METALLIZATION STRUCTURE
    30.
    发明申请
    SOLAR CELL HAVING A PLURALITY OF SUB-CELLS COUPLED BY A METALLIZATION STRUCTURE 有权
    具有通过金属结构耦合的多个子电池的太阳能电池

    公开(公告)号:US20150280028A1

    公开(公告)日:2015-10-01

    申请号:US14229543

    申请日:2014-03-28

    摘要: Solar cells having a plurality of sub-cells coupled by metallization structures, and singulation approaches to forming solar cells having a plurality of sub-cells coupled by metallization structures, are described. In an example, a solar cell, includes a plurality of sub-cells, each of the sub-cells having a singulated and physically separated semiconductor substrate portion. Adjacent ones of the singulated and physically separated semiconductor substrate portions have a groove there between. The solar cell also includes a monolithic metallization structure. A portion of the monolithic metallization structure couples ones of the plurality of sub-cells. The groove between adjacent ones of the singulated and physically separated semiconductor substrate portions exposes a portion of the monolithic metallization structure.

    摘要翻译: 描述了具有通过金属化结构耦合的多个子单元的太阳能电池,以及用于形成具有通过金属化结构耦合的多个子单元的太阳能电池的单独方法。 在一个示例中,太阳能电池包括多个子单元,每个子单元具有单个化和物理分离的半导体衬底部分。 相邻的分离和物理分离的半导体衬底部分之间具有凹槽。 太阳能电池还包括单片金属化结构。 单片金属化结构的一部分耦合多个子单元中的一个。 单个化和物理分离的半导体衬底部分中相邻的半导体衬底部分之间的凹槽暴露了整体式金属化结构的一部分。