Patents by Inventor Gerard Ducreuz

Gerard Ducreuz 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).

  • Process for manufacturing a regulation and protection diode
    Patent number: 5032534
    Abstract: A process for manufacturing a combination and protection diode on a substrate comprising a first, highly doped, thick N-type layer (40) and a second N-type, low doped, layer (10), comprises the following successive steps: implanting in a small surface area N-type dopants (12), carrying out a first annealing process, implanting in a second area including and surrounding the first area N-type dopants (22), carrying out a second annealing process, inplanting in a third area including the first area and at least one portion of the second area P-type dopants (32), and carrying out a third annealing process.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: July 16, 1991
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventor: Gerard Ducreuz