Patents by Inventor Ferdinand Muller

Ferdinand Muller 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: 9818468
    Abstract: A technique for erasing a ferroelectric field effect transistor (FeFET) memory circuit comprising a plurality memory cells comprising FeFETs is described. Each FeFET comprises a gate stack, a source, a drain, a channel and a bulk substrate region, where the gate stack comprises a gate and a ferroelectric layer disposed between the gate and the channel. A positive or a negative voltage is applied to the source and drain regions of at least one FeFET memory cell depending on the channel type. The gate and bulk substrate regions are held at a ground state during said applying of the positive voltage to the source and drain regions of the FeFET memory cell to cause erasure of the at least one FeFET memory cell. In addition, a FeFET is described with a charge storage layer disposed adjacently to the ferroelectric layer within the gate stack.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: November 14, 2017
    Assignee: NaMLab gGmbH
    Inventor: Stefan Ferdinand Müller
  • Publication number: 20170076775
    Abstract: A technique for erasing a ferroelectric field effect transistor (FeFET) memory circuit comprising a plurality memory cells comprising FeFETs is described. Each FeFET comprises a gate stack, a source, a drain, a channel and a bulk substrate region, where the gate stack comprises a gate and a ferroelectric layer disposed between the gate and the channel. A positive or a negative voltage is applied to the source and drain regions of at least one FeFET memory cell depending on the channel type. The gate and bulk substrate regions are held at a ground state during said applying of the positive voltage to the source and drain regions of the FeFET memory cell to cause erasure of the at least one FeFET memory cell. In addition, a FeFET is described with a charge storage layer disposed adjacently to the ferroelectric layer within the gate stack.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventor: Stefan Ferdinand MÜLLER
  • Patent number: 9558804
    Abstract: A technique for erasing a ferroelectric field effect transistor (FeFET) memory circuit comprising a plurality memory cells comprising FeFETs is described. Each FeFET comprises a gate stack, a source, a drain, a channel and a bulk substrate region, where the gate stack comprises a gate and a ferroelectric layer disposed between the gate and the channel. A positive or a negative voltage is applied to the source and drain regions of at least one FeFET memory cell depending on the channel type. The gate and bulk substrate regions are held at a ground state during said applying of the positive voltage to the source and drain regions of the FeFET memory cell to cause erasure of the at least one FeFET memory cell. In addition, a FeFET is described with a charge storage layer disposed adjacently to the ferroelectric layer within the gate stack.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: January 31, 2017
    Assignee: NAMLAB GGMBH
    Inventor: Stefan Ferdinand Müller
  • Publication number: 20160027490
    Abstract: A technique for erasing a ferroelectric field effect transistor (FeFET) memory circuit comprising a plurality memory cells comprising FeFETs is described. Each FeFET comprises a gate stack, a source, a drain, a channel and a bulk substrate region, where the gate stack comprises a gate and a ferroelectric layer disposed between the gate and the channel. A positive or a negative voltage is applied to the source and drain regions of at least one FeFET memory cell depending on the channel type. The gate and bulk substrate regions are held at a ground state during said applying of the positive voltage to the source and drain regions of the FeFET memory cell to cause erasure of the at least one FeFET memory cell. In addition, a FeFET is described with a charge storage layer disposed adjacently to the ferroelectric layer within the gate stack.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 28, 2016
    Inventor: Stefan Ferdinand Müller
  • Patent number: 9053802
    Abstract: An integrated circuit includes a ferroelectric memory cell. In one embodiment, the ferroelectric memory cell includes a first oxide storage layer, a second oxide storage layer, and an amorphous layer disposed between the first and second oxide storage layers. Each of the first and second oxide storage layers includes a ferroelectric material that is at least partially in a ferroelectric state and further includes, as main components, oxygen and any of the group consisting of Hf, Zr and (Hf,Zr).
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: June 9, 2015
    Assignee: NaMLab gGmbH
    Inventors: Stefan Ferdinand Müller, Ekaterina Yurchuk, Uwe Schröder
  • Publication number: 20140355328
    Abstract: An integrated circuit includes a ferroelectric memory cell. In one embodiment, the ferroelectric memory cell includes a first oxide storage layer, a second oxide storage layer, and an amorphous layer disposed between the first and second oxide storage layers. Each of the first and second oxide storage layers includes a ferroelectric material that is at least partially in a ferroelectric state and further includes, as main components, oxygen and any of the group consisting of Hf, Zr and (Hf,Zr).
    Type: Application
    Filed: June 4, 2013
    Publication date: December 4, 2014
    Inventors: Stefan Ferdinand Müller, Ekaterina Yurchuk, Uwe Schröder
  • Patent number: 5342169
    Abstract: In an axial flow turbine with a row of individually adjustable guide vanes (8) and a row of rotor blades (5), the guide vanes can be rotated by an adjusting shaft (9) supported in a casing (4) and passing through a vane carrier (3). The tips of the rotor blades seal against a cover (7). In order to match the duct contour to different heights of blading (5, 8), only the vane carrier (3) and the cover (7) are designed to be exchangeable, with otherwise unaltered machine geometry.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: August 30, 1994
    Assignee: Asea Brown Boveri Ltd.
    Inventor: Ferdinand Muller