Patents by Inventor Quang Nam Le

Quang Nam Le has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Solar cell including multi-crystalline silicon and a method of texturizing the surface of p-type multi-crystalline silicon
    Patent number: 5949123
    Abstract: A solar cell comprising multi-crystalline silicon or an alloy thereof, having a surface that is to receive light radiation, wherein said silicon surface includes a multi-tude of pits of depth lying in the range 0.10 .mu.m to 10 .mu.m and of diameter lying in the range 0.1 .mu.m to 10 .mu.m, and in which the ratio of said depth to said diameter is greater than 1, the area of said holes occupying more than half the area of said silicon surface.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: September 7, 1999
    Assignee: Photowatt International S.A.
    Inventors: Quang Nam Le, Dominique Sarti, Claude Levy-Clement, Stephane Bastide