Patents by Inventor John Frackoviak

John Frackoviak 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).

  • Publication number: 20020187434
    Abstract: A lithographic process is disclosed. In the process, devices are fabricated by a sequence of steps in which materials are deposited on a substrate and patterned. These patterned layers are used to form devices, such as semiconductor devices, optical devices and the like over the substrate. The desired pattern is formed by introducing an image of a first pattern in a layer of energy sensitive material. The image is then developed to form a pattern with features having a first size. Subsequently, the pattern is exposed to an isotropic liquid etchant to reduce the size of the features to a second, smaller size. The pattern having the features of the second, smaller size is then transferred into the underlying substrate or a layer of material formed over the substrate.
    Type: Application
    Filed: August 7, 2001
    Publication date: December 12, 2002
    Inventors: James W. Blatchford, John Frackoviak, Roscoe T. Luce, Omkaram Nalamasu, Allen G. Timko