LASER PROCESSING FOR BACK CONTACT CRYSTALLINE SILICON SOLAR CELL FABRICATION

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United States of America Patent

SERIAL NO

15237526

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Abstract

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Laser processing schemes are disclosed for producing various types of hetero-junction and homo-junction solar cells. The methods include base and emitter contact opening, selective doping, and metal ablation. Also, laser processing schemes are disclosed that are suitable for selective amorphous silicon ablation and selective doping for hetero-junction solar cells. These laser processing techniques may be applied to semiconductor substrates, including crystalline silicon substrates, and further including crystalline silicon substrates which are manufactured either through wire saw wafering methods or via epitaxial deposition processes, that are either planar or textured/three-dimensional. These techniques are highly suited to crystalline semiconductor, including crystalline silicon.

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OB REALTY LLC19900 MACARTHUR BLVD 12TH FLOOR IRVINE CA 92647

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  • 2016 Application Filing Year
  • H01L Class
  • 27971 Applications Filed
  • 23507 Patents Issued To-Date
  • 84.05 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anbalagan, Pranav San Jose, US 16 283
Liang, JianJun Milpitas, US 7 90
Moslehi, Mehrdad M Los Altos, US 307 13906
Rana, Virendra V Los Gatos, US 49 719

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges26979357140748325312788503629173801 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050010001500200025003000350040004500500055006000650070007500800085009000950010000

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