Patents Assigned to SGS-Thompson Microelectronics S.p.A.
  • Method for shaping the edges of slices of semiconductor material
    Patent number: 4897369
    Abstract: The invention concerns a method in which the edge of the slices is made to slide in contact with the surfaces of a pad soaked in acid substances and in which, during the process, the areas of the edge of the slices that have been in contact with the pad are periodically washed with a special liquid.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: January 30, 1990
    Assignee: SGS-Thompson Microelectronics S.p.A.
    Inventors: Giorgio Beretta, Antonino Inserra
  • Refrigerant fluid trap for vacuum evaporators for the deposit of thin metal films
    Patent number: 4785638
    Abstract: A refrigerant fluid trap for a vacuum evaporator for depositing a thin metal film including a U-shaped structure for passage of refrigerant fluid, forming an interior space for trapping condensable vapors. In said interior space there is housed a titanium evaporation source.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: November 22, 1988
    Assignee: SGS-Thompson Microelectronics S.p.A.
    Inventor: Orazio Viscuso