Patents by Inventor V. Louise Rice

V. Louise Rice 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).

  • Semiconductor device having a tin metallization system and package containing same
    Patent number: 4187599
    Abstract: An improved metallization system for semiconductor substrates comprising successive layers of at least one barrier metal and tin is disclosed. A semiconductor package comprising a housing of impervious material, a semiconductor device having the metallization system of this invention disposed in the housing and conductor means bonded to the tin on the semiconductor device is also disclosed. The system is of particular usefulness in double stud diode packages.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: February 12, 1980
    Assignee: Motorola, Inc.
    Inventors: Dervin L. Flowers, Richard L. Greeson, V. Louise Rice
  • Semiconductor wafer corrosion protection solution
    Patent number: 3963500
    Abstract: A composition for the corrosion protection of a metallized semiconductor die or wafer containing an alcohol solution of boron, phosphorous and a metal selected from the group consisting of gold, palladium, rhodium and platinum. The solution is prepared by mixing phosphorous pentoxide in an alcohol solvent. The dissolution of the phosphorous pentoxide is exothermic and the temperature of the solution will rise during the reaction. Then boric anhydride and a salt or oxide of gold, palladium, rhodium or platinum are added to the solution.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: June 15, 1976
    Assignee: Motorola, Inc.
    Inventors: Dervin L. Flowers, V. Louise Rice