Patents by Inventor Haidi Zhou

Haidi Zhou 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).

  • Patent number: 11195589
    Abstract: According to various aspects, a memory cell arrangement is provided, the memory cell arrangement including a control circuit configured to carry out a de-trapping writing scheme to write at least one memory cell of the memory cell arrangement into a memory state, the de-trapping writing scheme including providing one or more write voltage pulses and one or more de-trapping voltage pulses at the at least one memory cell, wherein the one or more de-trapping voltage pulses have opposite polarity with respect to the one or more write voltage pulses, and wherein one or more properties of the one or more write voltage pulses and of the one or more de-trapping voltage pulses are varied as long as the memory cell is not in the memory state.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: December 7, 2021
    Assignee: FERROELECTRIC MEMORY GMBH
    Inventors: Johannes Ocker, Haidi Zhou, Stefan Müller