Patents by Inventor Teh H. Lee

Teh H. Lee 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).

  • Photogenerated carrier collection of a solid state image sensor array
    Patent number: 5859462
    Abstract: An image sensor comprising a semiconductor of a first conductivity type having a plurality of pixels formed thereon; and a region heavily doped with the first conductivity type semiconductor beneath the pixels formed such that there is a gradient formed within the semiconductor below the pixels that is capable of directing photogenerated electrons toward the pixels and away from the heavily doped region. The gradient is formed by having a more lightly doped layer formed upon the heavily doped layer and allowing a gradient to from around the junction of the two layers.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: January 12, 1999
    Assignee: Eastman Kodak Company
    Inventors: Timothy J. Tredwell, Teh H. Lee, James P. Lavine