Patents by Inventor Joerg Dietrich Schmid

Joerg Dietrich Schmid 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: 8102174
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 24, 2012
    Assignee: Infineon Technologies North America Corp.
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Patent number: 8027185
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: September 27, 2011
    Assignees: International Business Machines Corporation, Infineon Technologies North America Corp.
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Patent number: 8004278
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: August 23, 2011
    Assignees: International Business Machines Corporation, Infineon Technologies North America Corp.
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Publication number: 20100023287
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Application
    Filed: August 11, 2009
    Publication date: January 28, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Publication number: 20090309587
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Application
    Filed: August 11, 2009
    Publication date: December 17, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Patent number: 7622735
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: November 24, 2009
    Assignee: International Business Machines Corporation
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Publication number: 20090267597
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Application
    Filed: January 29, 2009
    Publication date: October 29, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Publication number: 20090261820
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Application
    Filed: May 2, 2005
    Publication date: October 22, 2009
    Applicants: International Business Machines Corporation, Infineon Technologies North America Corp.
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Publication number: 20080079047
    Abstract: In an embodiment of the invention a memory device is provided including a plurality of memory cells, each of which comprises a first electrode, a second electrode and an active material arranged between the first electrode and the second electrode, the first electrodes being arranged parallel to each other and which are isolated against each other, and the memory cells being grouped into memory cell groups, each memory cell group defining a memory cell group area and being configured such that corresponding first electrodes are individually addressable via the first electrodes, and corresponding second electrodes are commonly addressable via a common select device arranged within the memory cell group area of the memory cell group.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Inventor: Joerg Dietrich Schmid
  • Patent number: 6927569
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: August 9, 2005
    Assignees: International Business Machines Corporation, Infineon Technologies AG
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid
  • Patent number: 6768150
    Abstract: A magnetic memory cell is disclosed. The memory cell includes first conductor and second conductors coupled to first and second electrodes of a magnetic element. A plurality of memory cells is interconnected by first and second conductors to form a memory array or block. The second conductor is coupled to the second electrode via a conductive strap having a fuse portion. The fuse portion can be blown to sever the connection between the second conductor and magnetic element, Nitride.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: July 27, 2004
    Assignee: Infineon Technologies Aktiengesellschaft
    Inventors: Kia Seng Low, Joerg Dietrich Schmid
  • Publication number: 20040051522
    Abstract: Probes are electrically connected to a surface of a tunnel junction film stack comprising a free layer, a tunnel barrier, and a pinned layer. Resistances are determined for a variety of probe spacings and for a number of magnetizations of one of the layers of the stack. The probe spacings are a distance from a length scale, which is related to the Resistance-Area (RA) product of the tunnel junction film stack. Spacings from as small as possible to about 40 times the length scale are used. Beneficially, the smallest spacing between probes used during a resistance measurement is under 100 microns. A measured in-plane MagnetoResistance (MR) curve is determined from the “high” and “low” resistances that occur at the two magnetizations of this layer. The RA product, resistances per square of the free and pinned layers, and perpendicular MR are determined through curve fitting.
    Type: Application
    Filed: September 16, 2002
    Publication date: March 18, 2004
    Applicant: International Business Machines Corporation
    Inventors: Daniel Christopher Worledge, Philip Louis Trouilloud, David William Abraham, Joerg Dietrich Schmid