Patents by Inventor Maurizio Di Bona

Maurizio Di Bona 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).

  • Photolithographic method of aligning a structure on the back of a substrate
    Patent number: 4818724
    Abstract: A method of making semiconductive developments, especially MESFETs, which applies a template to a surface of the substrate previously formed with circuit elements in alignment with these elements and so bonds the template to the substrate that the template can be utilized as a holder for the substrate. The rear surface is then coated with a resist and a second template aligned externally with the first utilizing markings exterior to the substrate to form the structure on the rear surface which can include throughholes for a metal deposit extending through the preferably GaAs substrate.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: April 4, 1989
    Assignee: Selenia Industrie Elettroniche Associate S.P.A.
    Inventors: Antonio Cetronio, Sergio Moretti, Maurizio Di Bona