Patents by Inventor Rafael Landron

Rafael Landron 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).

  • Lower temperature glass and hermetic seal means and method
    Patent number: 4417913
    Abstract: An improved lead-free glass or glass plus alumina ceramic sealing material composition for making compression glass sealed electrical leads in semiconductor device packages is described wherein the improved sealing material consists essentially of the following range of ingredients, by weight percent:______________________________________ Pb-Free Glass Element Composition Range Glass Plus Alumina ______________________________________ SiO.sub.2 40-50 34-50 Al.sub.2 O.sub.3 2-12 2-25 K.sub.2 O 2-6 2-6 Na.sub.2 O 5-9 4-9 Li.sub.2 O 2-6 2-6 CaO 0-4 0-4 ZnO 5-12 4-12 BaO 1-5 1-5 TiO.sub.2 2-6 2-6 B.sub.2 O.sub.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: November 29, 1983
    Assignee: Motorola, Inc.
    Inventors: Earl K. Davis, Rafael Landron, Scot W. Taylor
  • Lower temperature glass and hermetic seal means and method
    Patent number: 4349635
    Abstract: An improved lead-free glass or glass plus alumina ceramic sealing material for making compression glass sealed electrical leads in semiconductor device packages is described wherein the improved sealing material consists essentially of the following range of ingredients, by weight percent:______________________________________ Composition Range Element Pb-free Glass (Glass plus alumina) ______________________________________ SiO.sub.2 40-50 34-50 Al.sub.2 O.sub.3 2-12 2-25 K.sub.2 O 2-6 2-6 Na.sub.2 O 5-9 4-9 Li.sub.2 O 2-6 2-6 CaO 0-4 0-4 ZnO 5-12 4-12 BaO 1-5 1-5 TiO.sub.2 2-6 2-6 B.sub.2 O.sub.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: September 14, 1982
    Assignee: Motorola, Inc.
    Inventors: Earl K. Davis, Rafael Landron, Scot W. Taylor