公开(公告)号：US20160013335A1

公开(公告)日：2016-01-14

申请号：US14615335

申请日：2015-02-05

Applicant: SOLEXEL, INC.

Inventor： Mehrdad M. Moslehi ,  Karl-Josef Kramer ,  Sean M. Seutter ,  Pawan Kapur ,  Thom Stalcup ,  David Xuan-Qi Wang ,  George D. Kamian ,  Kamran Manteghi ,  Yen-Sheng Su ,  Pranav Anbalagan ,  Virendra V. Rana ,  Anthony Calcaterra ,  Gerry Olsen ,  Wojciech Worwag

IPC: H01L31/0224 ,  H01L31/18

CPC classification number: H01L31/022441 ,  H01L31/0516 ,  H01L31/1804 ,  Y02E10/50

Abstract: Fabrication methods and structures relating to backplanes for back contact solar cells that provide for solar cell substrate reinforcement and electrical interconnects are described. The method comprises depositing an interdigitated pattern of base electrodes and emitter electrodes on a backside surface of a semiconductor substrate, attaching a prepreg backplane to the interdigitated pattern of base electrodes and emitter electrodes, forming holes in the prepreg backplane which provide access to the first layer of electrically conductive metal, and depositing a second layer of electrically conductive metal on the backside surface of the prepreg backplane forming an electrical interconnect with the first layer of electrically conductive metal through the holes in the prepreg backplane.

Abstract translation: 描述了提供太阳能电池基板加强和电互连的背接触太阳能电池的背板的制造方法和结构。 该方法包括在半导体衬底的背面上沉积基底电极和发射电极的交错图案，将预浸料底板附着到基底电极和发射电极的交错图案上，在预浸料底板上形成孔，其提供对第一层 的导电金属，并且在预浸料背板的背面上沉积第二导电金属层，通过预浸料背板中的孔与第一导电金属层形成电互连。

公开(公告)号：US09911875B2

公开(公告)日：2018-03-06

申请号：US14260272

申请日：2014-04-23

Applicant: Solexel, Inc.

Inventor： Swaroop Kommera ,  Pawan Kapur ,  Yen-Sheng Su ,  Vivek Saraswat ,  Anand Deshpande ,  Mehrdad M. Moslehi

IPC: H01L31/0224 ,  H01L31/068 ,  H01L31/05 ,  H01L31/02

CPC classification number: H01L31/022441 ,  H01L31/02008 ,  H01L31/0516 ,  H01L31/0682 ,  Y02E10/50

Abstract: An interdigitated back contact solar cell is provided. The solar cell comprises a solar cell substrate having a light receiving frontside and a backside comprising base and emitter regions. A first level metal (M1) layer is positioned on the substrate backside contacting the base and emitter regions. A second level metal (M2) layer is connected to the first level metal (M1) layer and comprises a base busbar and an emitter busbar. The first level metal comprises substantially orthogonal interdigitated metallization and substantially parallel interdigitated metallization positioned under and corresponding to the base and emitter busbars on the second level metal (M2). The substantially parallel interdigitated metallization of M1 collects carriers of opposite polarity of the corresponding busbar.

公开(公告)号：US20150068592A1

公开(公告)日：2015-03-12

申请号：US14260272

申请日：2014-04-23

Applicant: Solexel, Inc.

Inventor： Swaroop Kommera ,  Pawan Kapur ,  Yen-Sheng Su ,  Vivek Saraswat ,  Anand Deshpande ,  Mehrdad M. Moslehi

IPC: H01L31/02

CPC classification number: H01L31/022441 ,  H01L31/02008 ,  H01L31/0516 ,  H01L31/0682 ,  Y02E10/50

Abstract: An interdigitated back contact solar cell is provided. The solar cell comprises a solar cell substrate having a light receiving frontside and a backside comprising base and emitter regions. A first level metal (M1) layer is positioned on the substrate backside contacting the base and emitter regions. A second level metal (M2) layer is connected to the first level metal (M1) layer and comprises a base busbar and an emitter busbar. The first level metal comprises substantially orthogonal interdigitated metallization and substantially parallel interdigitated metallization positioned under and corresponding to the base and emitter busbars on the second level metal (M2). The substantially parallel interdigitated metallization of M1 collects carriers of opposite polarity of the corresponding busbar.

Abstract translation: 提供了交错的背接触太阳能电池。 太阳能电池包括具有光接收前侧的太阳能电池基板和包括基极和发射极区域的背面。 第一级金属（M1）层位于接触基极和发射极区域的衬底背面。 第二级金属（M2）层连接到第一级金属（M1）层，并且包括基极母线和发射极母线。 第一级金属包括位于第二级金属（M2）上的基极和发射极母线之下并对应于基本上正交叉指金属化的基本上平行的叉指金属化。 M1的基本上平行的叉指金属化收集相应母线相反极性的载体。