Patents by Inventor Naomi B. Velasquez

Naomi B. Velasquez 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).

  • Lead titanate isolation layers for use in fabricating PZT-based capacitors and similar structures
    Patent number: 6074885
    Abstract: A method for constructing a device having a bottom electrode in contact with a layer of a ferroelectric dielectric material. In the method of the present invention, a layer of a field ferroelectric material is deposited on a substrate and etched to form a trench in which the bottom electrode is constructed. The bottom electrode is then deposited and a layer of the ferroelectric dielectric material is deposited over the bottom electrode and at least a portion of the field ferroelectric material. The ferroelectric layers are deposited in a perovskite state. These layers are etched back to the substrate in those areas that are outside of the device.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: June 13, 2000
    Assignee: Radiant Technologies, Inc
    Inventors: Leonard L. Boyer, Joseph T. Evans, Jr., Naomi B. Velasquez