Patents by Inventor Walter Heinrich Riess
Walter Heinrich Riess 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).
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Patent number: 10338630Abstract: System and method related to photonic computing are provided. A photonic computing system may include an optical interference region and an input waveguide configured to couple an optical input signal to the optical interference region and to create an optical interference pattern in the optical interference region. The interference pattern has an optical power distribution. The photonic computing system may further include a readout unit that is arranged in an inner area of the optical interference region. The readout unit is configured to detect an optical readout signal of the optical power distribution at a readout position of the inner area of the optical interference region. A method is also provided for performing photonic computing.Type: GrantFiled: April 3, 2017Date of Patent: July 2, 2019Assignee: International Business Machines CorporationInventors: Stefan Abel, Jean Fompeyrine, Bert Jan Offrein, Walter Heinrich Riess
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Publication number: 20180284834Abstract: System and method related to photonic computing are provided. A photonic computing system may include an optical interference region and an input waveguide configured to couple an optical input signal to the optical interference region and to create an optical interference pattern in the optical interference region. The interference pattern has an optical power distribution. The photonic computing system may further include a readout unit that is arranged in an inner area of the optical interference region. The readout unit is configured to detect an optical readout signal of the optical power distribution at a readout position of the inner area of the optical interference region. A method is also provided for performing photonic computing.Type: ApplicationFiled: April 3, 2017Publication date: October 4, 2018Inventors: Stefan Abel, Jean Fompeyrine, Bert Jan Offrein, Walter Heinrich Riess
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Patent number: 8969931Abstract: A semiconductor device and a method for fabricating the semiconductor device. The device includes: a doped semiconductor having a source region, a drain region, a channel between the source and drain regions, and an extension region between the channel and each of the source and drain regions; a gate formed on the channel; and a screening coating on each of the extension regions. The screening coating includes: (i) an insulating layer that has a dielectric constant that is no greater than about half that of the extension regions and is formed directly on the extension regions, and (ii) a screening layer on the insulating layer, where the screening layer screens the dopant ionization potential in the extension regions to inhibit dopant deactivation.Type: GrantFiled: October 18, 2010Date of Patent: March 3, 2015Assignee: International Business Machines CorporationInventors: Mikael T. Bjoerk, Joachim Knoch, Heike E. Riel, Walter Heinrich Riess, Heinz Schmid
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Patent number: 8754401Abstract: An Impact Ionization Field-Effect Transistor (I-MOS) device in which device degradation caused by hot carrier injection into a gate oxide is prevented. The device includes source, drain, and gate contacts, and a channel between the source and the drain. The channel has a dimension normal to the direction of a charge carrier transport in the channel such that the energy separation of the first two sub-bands equals or exceeds the effective energy band gap of the channel material.Type: GrantFiled: August 30, 2010Date of Patent: June 17, 2014Assignee: International Business Machines CorporationInventors: Mikael T Bjoerk, Oliver Hayden, Joachim Knoch, Emanuel Loertscher, Heike E Riel, Walter Heinrich Riess, Heinz Schmid
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Publication number: 20120280292Abstract: A semiconductor device and a method for fabricating the semiconductor device. The device includes: a doped semiconductor having a source region, a drain region, a channel between the source and drain regions, and an extension region between the channel and each of the source and drain regions; a gate formed on the channel; and a screening coating on each of the extension regions. The screening coating includes: (i) an insulating layer that has a dielectric constant that is no greater than about half that of the extension regions and is formed directly on the extension regions, and (ii) a screening layer on the insulating layer, where the screening layer screens the dopant ionization potential in the extension regions to inhibit dopant deactivation.Type: ApplicationFiled: October 18, 2010Publication date: November 8, 2012Applicant: International Business Machines CorporationInventors: Mikael T. Bjoerk, Joachim Knoch, Heike E. Riel, Walter Heinrich Riess, Heinz Schmid
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Patent number: 8193524Abstract: An electronic device and method of manufacturing the device. The device includes a semiconducting region, which can be a nanowire, a first contact electrically coupled to the semiconducting region, and at least one second contact capacitively coupled to the semiconducting region. At least a portion of the semiconducting region between the first contact and the second contact is covered with a dipole layer. The dipole layer can act as a local gate on the semiconducting region to enhance the electric properties of the device.Type: GrantFiled: September 22, 2009Date of Patent: June 5, 2012Assignee: International Business Machines CorporationInventors: Mikael T Bjoerk, Joachim Knoch, Heike E Riel, Walter Heinrich Riess, Heinz Schmid
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Patent number: 8053037Abstract: A device for patterning structures on a substrate includes an imaging device having a scanning tip, a light emitting device, and a space around the scanning tip. The space comprises a vapor of a material which is suitable for Chemical Vapor Deposition onto the substrate when decomposed. The light emitting device is adapted to emit a light beam, which has an intensity not capable to decompose the vapor, onto the scanning tip in such a way that an electromagnetic field induced by the light beam near the scanning tip is high enough to decompose the vapor.Type: GrantFiled: November 9, 2004Date of Patent: November 8, 2011Assignee: International Business Machines CorporationInventors: Siegfried F. Karg, Roland Germann, Heike E. Riel, Walter Heinrich Riess, Reto Schlittler
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Patent number: 7947580Abstract: A method for the fabrication of a semiconductor structure that includes areas that have different crystalline orientation and semiconductor structure formed thereby. The disclosed method allows fabrication of a semiconductor structure that has areas of different semiconducting materials. The method employs templated crystal growth using a Vapor-Liquid-Solid (VLS) growth process. A silicon semiconductor substrate having a first crystal orientation direction is etched to have an array of holes into its surface. A separation layer is formed on the inner surface of the hole for appropriate applications. A growth catalyst is placed at the bottom of the hole and a VLS crystal growth process is initiated to form a nanowire. The resultant nanowire crystal has a second different crystal orientation which is templated by the geometry of the hole.Type: GrantFiled: December 10, 2008Date of Patent: May 24, 2011Assignee: International Business Machines CorporationInventors: Mikael T. Bjoerk, Oliver Hayden, Heike E. Riel, Walter Heinrich Riess, Heinz Schmid
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Publication number: 20110049476Abstract: An Impact Ionization Field-Effect Transistor (I-MOS) device in which device degradation caused by hot carrier injection into a gate oxide is prevented. The device includes source, drain, and gate contacts, and a channel between the source and the drain. The channel has a dimension normal to the direction of a charge carrier transport in the channel such that the energy separation of the first two sub-bands equals or exceeds the effective energy band gap of the channel material.Type: ApplicationFiled: August 30, 2010Publication date: March 3, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Mikael T. Bjoerk, Oliver Hayden, Joachim Knoch, Emanuel Loertscher, Heike E. Riel, Walter Heinrich Riess, Heinz Schmid
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Publication number: 20100072460Abstract: An electronic device and method of manufacturing the device. The device includes a semiconducting region, which can be a nanowire, a first contact electrically coupled to the semiconducting region, and at least one second contact capacitively coupled to the semiconducting region. At least a portion of the semiconducting region between the first contact and the second contact is covered with a dipole layer. The dipole layer can act as a local gate on the semiconducting region to enhance the electric properties of the device.Type: ApplicationFiled: September 22, 2009Publication date: March 25, 2010Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Mikael T. Bjoerk, Joachim Knoch, Heike E. Riel, Walter Heinrich Riess, Heinz Schmid
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Publication number: 20090258166Abstract: A device for patterning structures on a substrate includes an imaging device having a scanning tip, a light emitting device, and a space around the scanning tip. The space comprises a vapour of a material which is suitable for Chemical Vapour Deposition onto the substrate when decomposed. The light emitting device is adapted to emit a light beam, which has an intensity not capable to decompose the vapour, onto the scanning tip in such a way that an electromagnetic field induced by the light beam near the scanning tip is high enough to decompose the vapour.Type: ApplicationFiled: November 9, 2004Publication date: October 15, 2009Applicant: International Business Machines CorporationInventors: Siegfried F. Karg, Roland Germann, Heike E. Riel, Walter Heinrich Riess, Reto Schlittler
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Publication number: 20090146133Abstract: A method for the fabrication of a semiconductor structure that includes areas that have different crystalline orientation and semiconductor structure formed thereby. The disclosed method allows fabrication of a semiconductor structure that has areas of different semiconducting materials. The method employs templated crystal growth using a Vapor-Liquid-Solid (VLS) growth process. A silicon semiconductor substrate having a first crystal orientation direction is etched to have an array of holes into its surface. A separation layer is formed on the inner surface of the hole for appropriate applications. A growth catalyst is placed at the bottom of the hole and a VLS crystal growth process is initiated to form a nanowire. The resultant nanowire crystal has a second different crystal orientation which is templated by the geometry of the hole.Type: ApplicationFiled: December 10, 2008Publication date: June 11, 2009Inventors: Mikael T. Bjoerk, Oliver Hayden, Heike E. Riel, Walter Heinrich Riess, Heinz Schmid
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Publication number: 20080011996Abstract: The present invention provides a microelectronic device comprising a resistance structure including a plurality of programmable resistance layers and at least one intermediate layer such that an intermediate layer is placed between two programmable resistance layers. The programmable resistance layers can be individually doped or may consist of different materials. Each programmable resistance layer may be optimized for a specific application. The microelectronic device can be used as a programmable resistor or a memory cell as it exhibits switchable electrical resistance and does not require a time-consuming conditioning process.Type: ApplicationFiled: July 11, 2006Publication date: January 17, 2008Inventors: Johannes Georg Bednorz, Walter Heinrich Riess, Siegfried F. Karg, Gerhard Ingmar Meijer, German Hammerl
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Patent number: 6723591Abstract: There is provided a method for fabricating an organic light emitting device. The method includes depositing a first electrode layer on a substrate, depositing an electrically insulating layer on the first electrode layer, depositing a second electrode layer on the insulating layer, depositing an organic layer on the second electrode layer, forming an aperture in the organic layer, depositing a light transmissive electrically conductive layer on the organic layer, and forming an electrical connection between the conductive layer and one of the first and second electrode layers via the aperture.Type: GrantFiled: March 3, 2003Date of Patent: April 20, 2004Assignee: International Business Machines CorporationInventors: Armin Beck, Tilman A. Beierlein, Peter Mueller, Heike Riel, Walter Heinrich Riess
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Publication number: 20030146453Abstract: An organic light emitting device has a layer structure comprising: a first electrode layer (20); a second electrode layer (40) parallel to the first electrode layer (20); and, an electrically conductive and light transmissive layer (70) parallel to the second electrode layer. An electrically insulating layer (30) is disposed between the first and second electrode layers. A layer of organic material (50) is disposed between the second electrode layer and the conductive layer. An aperture (60) in the organic layer provides an electrical connection path between the conductive layer and one of the first and second electrode layers.Type: ApplicationFiled: March 3, 2003Publication date: August 7, 2003Applicant: International Business Machines CorporationInventors: Armin Beck, Tilman A. Beierlein, Peter Mueller, Heike Riel, Walter Heinrich Riess
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Patent number: 6580090Abstract: A method of making a light-emitting device comprises forming a first and second components. The first component has a first substrate, a first electrode on the first substrate, an organic layer on the first electrode, and a light-transmissive second electrode on the organic layer. The second component has a light-transmissive second substrate, and a light transmissive, electrically conductive layer on the second substrate. The first and second components are joined with the second electrode of the first component facing the conductive layer of the second component. An electrical contact is formed between the second electrode of the first component and the electrically conductive layer of the second component.Type: GrantFiled: June 22, 2001Date of Patent: June 17, 2003Assignee: International Business Machines CorporationInventors: Siegfried Johannes Barth, Tilman A. Beierlein, Siegfried F. Karg, Heike Riel, Walter Heinrich Riess
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Patent number: 6552364Abstract: An organic light emitting device has a layer structure having: a first electrode layer; a second electrode layer parallel to the first electrode layer; and, an electrically conductive and light transmissive layer parallel to the second electrode layer. An electrically insulating layer is disposed between the first and second electrode layers. A layer of organic material is disposed between the second electrode layer and the conductive layer. An aperture in the organic layer provides an electrical connection path between the conductive layer and one of the first and second electrode layers.Type: GrantFiled: June 22, 2001Date of Patent: April 22, 2003Assignee: International Business Machines CorporationInventors: Armin Beck, Tilman A. Beierlein, Peter Mueller, Heike Riel, Walter Heinrich Riess
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Patent number: 6548961Abstract: A method of making a light-emitting device comprises forming a first and second components. The first component has a light-transmissive first substrate, light transmissive first electrode layer on the first substrate, an organic layer on the first electrode, and a second electrode layer on the organic layer. The second component has a second substrate and driver array circuitry on the second substrate. The first component and the second component are joined together with the second electrode of the first component facing the driver array of the second component. An electrical contact is formed between one of the first and second electrode layers of the first component and the driver array circuitry of the second component.Type: GrantFiled: June 22, 2001Date of Patent: April 15, 2003Assignee: International Business Machines CorporationInventors: Siegfried Johannes Barth, Tilman A. Beierlein, Siegfried F. Karg, Heike Riel, Walter Heinrich Riess
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Publication number: 20020197754Abstract: An organic light emitting device has a layer structure comprising: a first electrode layer (20); a second electrode layer (40) parallel to the first electrode layer (20); and, an electrically conductive and light transmissive layer (70) parallel to the second electrode layer. An electrically insulating layer (30) is disposed between the first and second electrode layers. A layer of organic material (50) is disposed between the second electrode layer and the conductive layer. An aperture (60) in the organic layer provides an electrical connection path between the conductive layer and one of the first and second electrode layers.Type: ApplicationFiled: June 22, 2001Publication date: December 26, 2002Applicant: International Business Machines CorporationInventors: Armin Beck, Tilman A. Beierlein, Peter Mueller, Heike Riel, Walter Heinrich Riess
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Publication number: 20020195961Abstract: A method of making a light-emitting device comprises forming a first and second components. The first component has a light-transmissive first substrate, light transmissive first electrode layer on the first substrate, an organic layer on the first electrode, and a second electrode layer on the organic layer. The second component has a second substrate and driver array circuitry on the second substrate. The first component and the second component are joined together with the second electrode of the first component facing the driver array of the second component. An electrical contact is formed between one of the first and second electrode layers of the first component and the driver array circuitry of the second component.Type: ApplicationFiled: June 22, 2001Publication date: December 26, 2002Applicant: International Business Machines CorporationInventors: Siegfried Barth, Tilman A. Beierlein, Siegfried F. Karg, Heike Riel, Walter Heinrich Riess