公开(公告)号：US20240154052A1

公开(公告)日：2024-05-09

申请号：US18282146

申请日：2022-03-17

Applicant: First Solar, Inc.

Inventor： Nikhil Bhandari ,  Matthew Davis ,  Rhett Miller ,  Charles Wickersham

IPC: H01L31/05 ,  H01L31/18

CPC classification number: H01L31/0508 ,  H01L31/186

Abstract: According to the embodiments provided herein, an island in a regular, closed shape is ablated in a first conductive layer. An interconnect is formed through the island, using the island as an alignment fiducial. The island and the interconnect are isolated from the remainder of the first conductive layer.

公开(公告)号：US20230187572A1

公开(公告)日：2023-06-15

申请号：US18105512

申请日：2023-02-03

Applicant: First Solar, Inc.

Inventor： Nikhil Bhandari ,  Charles Wickersham

IPC: H01L31/18 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/0296 ,  H01L31/05

CPC classification number: H01L31/186 ,  H01L31/0296 ,  H01L31/0516 ,  H01L31/1828 ,  H01L31/02167 ,  H01L31/022466

Abstract: According to the embodiments provided herein, a method for scribing a layer stack of a photovoltaic device can include directing a laser scribing waveform to a film side of a layer stack. The laser scribing waveform can include pulse groupings that repeat at a group repetition period of greater than or equal to 1.5 µs. Each pulse of the pulse groupings can have a pulse width of less than or equal to 900 fs.

公开(公告)号：US11581453B2

公开(公告)日：2023-02-14

申请号：US16975037

申请日：2019-02-21

Applicant: First Solar, Inc.

Inventor： Nikhil Bhandari ,  Charles Wickersham

IPC: H01L31/00 ,  H01L31/18 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/0296 ,  H01L31/05

Abstract: According to the embodiments provided herein, a method for scribing a layer stack of a photovoltaic device can include directing a laser scribing waveform to a film side of a layer stack. The laser scribing waveform can include pulse groupings that repeat at a group repetition period of greater than or equal to 1.5 μs. Each pulse of the pulse groupings can have a pulse width of less than or equal to 900 fs.

公开(公告)号：US20240014334A1

公开(公告)日：2024-01-11

申请号：US18035026

申请日：2021-11-03

Applicant: First Solar, Inc.

Inventor： Nikhil Bhandari ,  Matthew Davis ,  Rhett Miller ,  Charles Wickersham

IPC: H01L31/0224

CPC classification number: H01L31/022441

Abstract: According to the embodiments provided herein, a photovoltaic device can have one or more cells with a conducting layer interconnect.

公开(公告)号：US20210091254A1

公开(公告)日：2021-03-25

申请号：US16975037

申请日：2019-02-21

Applicant: First Solar, Inc.

Inventor： Nikhil Bhandari ,  Charles Wickersham

IPC: H01L31/18 ,  H01L31/0296 ,  H01L31/0224 ,  H01L31/05 ,  H01L31/0216

Abstract: According to the embodiments provided herein, a method for scribing a layer stack of a photovoltaic device can include directing a laser scribing waveform to a film side of a layer stack. The laser scribing waveform can include pulse groupings that repeat at a group repetition period of greater than or equal to 1.5 μs. Each pulse of the pulse groupings can have a pulse width of less than or equal to 900 fs.