Patents Represented by Law Firm McCubbrey, Bartls, Meyer & Ward
  • Patent number: 5164808
    Abstract: An improved ferroelectric structure and the method for making the same is disclosed. The improved structure reduces the fatigue problems encountered in ferroelectric capacitors while providing avoiding problems in depositing the ferroelectric material which have prevented other solutions to the fatigue problem from being effective. The improved ferroelectric structure also provides improved adhesion to the underlying substrate. The ferroelectric structure has a bottom electrode comprising a layer of PtO.sub.2 which is generated by depositing a layer of Platinum on a suitable substrate and then exposing the Platinum layer to an Oxygen plasma. The ferroelectric material is then deposited on the PtO.sub.2 layer.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: November 17, 1992
    Assignee: Radiant Technologies
    Inventors: Joseph T. Evans, Jr., Jeff A. Bullington, Carl E. Montross, Jr.