Patents by Inventor Andre Crahay

Andre Crahay 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).

  • Double-gate floating-body memory device
    Patent number: 8391081
    Abstract: A memory device is provided comprising a transistor having a floating body positioned between source and drain regions, the floating body being sandwiched between first and second insulated gates each comprising a gate electrode. A control circuit is arranged to program the state of said floating body to have an accumulation or depletion of majority carriers by applying one of first and second voltage levels between the first gate and at least one of the source and drain regions, and to retain the programmed state of said floating body by applying a third voltage level to the second gate. The voltages are switched over a time duration shorter than 100 ns.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: March 5, 2013
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Maryline Bawedin, Sorin Ioan Cristoloveanu, Denis Flandre, Christian Renaux, André Crahay
  • DOUBLE-GATE FLOATING-BODY MEMORY DEVICE
    Publication number: 20110019488
    Abstract: A memory device is provided comprising a transistor having a floating body positioned between source and drain regions, the floating body being sandwiched between first and second insulated gates each comprising a gate electrode. A control circuit is arranged to program the state of said floating body to have an accumulation or depletion of majority carriers by applying one of first and second voltage levels between the first gate and at least one of the source and drain regions, and to retain the programmed state of said floating body by applying a third voltage level to the second gate. The voltages are switched over a time duration shorter than 100 ns.
    Type: Application
    Filed: January 5, 2009
    Publication date: January 27, 2011
    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Maryline Bawedin, Sorin Ioan Cristoloveanu, Denis Flandre, Christian Renaux, Andre Crahay