Patents Represented by Attorney, Agent or Law Firm Peter Meza
  • Completely encapsulated top electrode of a ferroelectric capacitor using a lead-enhanced encapsulation layer
    Patent number: 6281023
    Abstract: A ferroelectric capacitor includes a bottom electrode, a top electrode, and a ferroelectric layer located between the top and bottom electrodes that extends to completely encapsulate the top electrode, except for a contact hole to allow metalization of the top electrode. The total encapsulation of the top electrode reduces the sensitivity of the ferroelectric capacitor to hydrogen and thus improves electrical switching performance.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: August 28, 2001
    Assignee: Ramtron International Corporation
    Inventors: Brian Lee Eastep, Thomas A. Evans