Patents by Inventor Olivier Adjemian

Olivier Adjemian 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).

  • Integrated circuit entirely protected against ultraviolet rays
    Patent number: 5235541
    Abstract: An integrated circuit ultraviolet-unerasable floating-gate memory, which includes EEPROM (or EPROM) memory cells totally enclosed by a metal mask. The metal mask includes metal projections which are anchored in substrate diffusions, to define a ring completely surrounding two (or four) floating-gate cells. The cells are single-polysilicon cells, in which the control gate is a diffusion. Signals are routed out through diffusions which go underneath the metal ring. A selection transistor, for each cell, is located outside the metal ring.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: August 10, 1993
    Assignee: SGS-Thomson Microelectronics, S.A.
    Inventors: Franck Edme, Olivier Adjemian