Patents Represented by Attorney, Agent or Law Firm Banner & Witcodd Ltd.
  • Edge formation process for aluminum solid electrolytic capacitor
    Patent number: 6707663
    Abstract: A solid electrolytic capacitor comprising a foil coated with a dielectric oxide film, wherein the coated foil has slit or cut edges, and the slit or cut edges have been reformed by anodizing the foil in an aqueous oxalic acid electrolyte, then forming the foil in an aqueous citrate electrolyte, then depolarizing the foil, and then forming the foil in an aqueous phosphate electrolyte.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: March 16, 2004
    Assignee: Kemet Electronics Corporation
    Inventors: Daniel Francis Persico, Philip Michael Lessner, Albert Kennedy Harrington, Lisa Ann Sayetta