Patents by Inventor Alessandro Comi

Alessandro Comi 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).

  • ROM memory programming procedure using MOS technology with thin gate oxide and junctions
    Patent number: 4837181
    Abstract: The cell to be programmed is subjected to wet isotropic etching to remove the oxide from above, beside and partially beneath the strip of polycrystalline silicon which forms the cell gate. There follows implantation of a dopant of a type opposite to that of the source junction and drain junction performed through the gate strip. Finally reoxidation of the entire cell area is performed.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: June 6, 1989
    Assignee: SGS-Thomson Microelectronics s.r.l.
    Inventors: Sergio Galbiati, Alessandro Comi