Patents by Inventor Lia Krusin-Elbaum
Lia Krusin-Elbaum 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: 8987084Abstract: A memory cell device includes a semiconductor nanowire extending, at a first end thereof, from a substrate; the nanowire having a doping profile so as to define a field effect transistor (FET) adjacent the first end, the FET further including a gate electrode at least partially surrounding the nanowire, the doping profile further defining a p-n junction in series with the FET, the p-n junction adjacent a second end of the nanowire; and a phase change material at least partially surrounding the nanowire, at a location corresponding to the p-n junction.Type: GrantFiled: May 15, 2012Date of Patent: March 24, 2015Assignee: International Business Machines CorporationInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Dennis M. Newns, Robert L. Sandstrom
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Patent number: 8586957Abstract: A three-terminal switching device for use in integrated circuit devices, including a phase change material (PCM) disposed in contact between a first terminal and a second terminal; a heating device disposed in direct electrical contact between said second terminal and a third terminal, said heating device positioned proximate said PCM, and configured to switch the conductivity of a transformable portion of said PCM between a lower resistance crystalline state and a higher resistance amorphous state; and an insulating layer configured to electrically isolate said heater from said PCM material, and said heater from said first terminal.Type: GrantFiled: September 1, 2009Date of Patent: November 19, 2013Assignee: International Business Machines CorporationInventors: Lia Krusin-Elbaum, Dennis M. Newns, Matthew R. Wordeman
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Patent number: 8466444Abstract: A switching circuit includes a plurality of three-terminal PCM switching devices connected between a voltage supply terminal and a sub-block of logic. Each of the switching devices includes a PCM disposed in contact between a first terminal and a second terminal, a heating device disposed in contact between the second terminal and a third terminal, the heating device positioned proximate the PCM, and configured to switch the conductivity of a transformable portion of the PCM between a lower resistance state and a higher resistance state; and an insulating layer configured to electrically isolate the heater from said PCM material, and the heater from the first terminal. The third terminal of a first of the PCM switching devices is coupled to a set/reset switch, and the third terminal of the remaining PCM switching devices is coupled to the second terminal of an adjacent PCM switching device in a cascade configuration.Type: GrantFiled: February 27, 2012Date of Patent: June 18, 2013Assignee: International Business Machines CorporationInventors: Lia Krusin-Elbaum, Dennis M. Newns, Matthew R. Wordeman
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Patent number: 8405279Abstract: A coupling structure for coupling piezoelectric material generated stresses to an actuated device of an integrated circuit includes a rigid stiffener structure formed around a piezoelectric (PE) material and the actuated device, the actuated device comprising a piezoresistive (PR) material that has an electrical resistance dependent upon an applied pressure thereto; and a soft buffer structure formed around the PE material and PR material, the buffer structure disposed between the PE and PR materials and the stiffener structure, wherein the stiffener structure clamps both the PE and PR materials to a substrate over which the PE and PR materials are formed, and wherein the soft buffer structure permits the PE material freedom to move relative to the PR material, thereby coupling stress generated by an applied voltage to the PE material to the PR material so as change the electrical resistance of the PR material.Type: GrantFiled: June 26, 2012Date of Patent: March 26, 2013Assignee: International Business Machines CorporationInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Glenn J. Martyna, Xiao Hu Liu, Dennis M. Newns, Kuan-Neng Chen
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Publication number: 20120270353Abstract: A coupling structure for coupling piezoelectric material generated stresses to an actuated device of an integrated circuit includes a rigid stiffener structure formed around a piezoelectric (PE) material and the actuated device, the actuated device comprising a piezoresistive (PR) material that has an electrical resistance dependent upon an applied pressure thereto; and a soft buffer structure formed around the PE material and PR material, the buffer structure disposed between the PE and PR materials and the stiffener structure, wherein the stiffener structure clamps both the PE and PR materials to a substrate over which the PE and PR materials are formed, and wherein the soft buffer structure permits the PE material freedom to move relative to the PR material, thereby coupling stress generated by an applied voltage to the PE material to the PR material so as change the electrical resistance of the PR material.Type: ApplicationFiled: June 26, 2012Publication date: October 25, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Glenn J. Martyna, Xiao Hu Liu, Dennis M. Newns, Kuan-Neng Chen
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Publication number: 20120225527Abstract: A memory cell device includes a semiconductor nanowire extending, at a first end thereof, from a substrate; the nanowire having a doping profile so as to define a field effect transistor (FET) adjacent the first end, the FET further including a gate electrode at least partially surrounding the nanowire, the doping profile further defining a p-n junction in series with the FET, the p-n junction adjacent a second end of the nanowire; and a phase change material at least partially surrounding the nanowire, at a location corresponding to the p-n junction.Type: ApplicationFiled: May 15, 2012Publication date: September 6, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Dennis M. Newns, Robert L. Sandstrom
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Patent number: 8247947Abstract: A coupling structure for coupling piezoelectric material generated stresses to an actuated device of an integrated circuit includes a rigid stiffener structure formed around a piezoelectric (PE) material and the actuated device, the actuated device comprising a piezoresistive (PR) material that has an electrical resistance dependent upon an applied pressure thereto; and a soft buffer structure formed around the PE material and PR material, the buffer structure disposed between the PE and PR materials and the stiffener structure, wherein the stiffener structure clamps both the PE and PR materials to a substrate over which the PE and PR materials are formed, and wherein the soft buffer structure permits the PE material freedom to move relative to the PR material, thereby coupling stress generated by an applied voltage to the PE material to the PR material so as change the electrical resistance of the PR material.Type: GrantFiled: December 7, 2009Date of Patent: August 21, 2012Assignee: International Business Machines CorporationInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Glenn J. Martyna, Xiao Hu Liu, Dennis M. Newns, Kuan-Neng Chen
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Patent number: 8243507Abstract: Programmable via devices and methods for the fabrication thereof are provided. In one aspect, a programmable via device is provided.Type: GrantFiled: May 13, 2011Date of Patent: August 14, 2012Assignee: International Business Machines CorporationInventors: Kuan-Neng Chen, Lia Krusin-Elbaum, Dennis M. Newns, Sampath Purushothaman
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Patent number: 8213224Abstract: A memory cell device includes a semiconductor nanowire extending, at a first end thereof, from a substrate; the nanowire having a doping profile so as to define a field effect transistor (FET) adjacent the first end, the FET further including a gate electrode at least partially surrounding the nanowire, the doping profile further defining a p-n junction in series with the FET, the p-n junction adjacent a second end of the nanowire; and a phase change material at least partially surrounding the nanowire, at a location corresponding to the p-n junction.Type: GrantFiled: November 23, 2009Date of Patent: July 3, 2012Assignee: International Business Machines CorporationInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Dennis M. Newns, Robert L. Sandstrom
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Publication number: 20120153248Abstract: A switching circuit includes a plurality of three-terminal PCM switching devices connected between a voltage supply terminal and a sub-block of logic. Each of the switching devices includes a PCM disposed in contact between a first terminal and a second terminal, a heating device disposed in contact between the second terminal and a third terminal, the heating device positioned proximate the PCM, and configured to switch the conductivity of a transformable portion of the PCM between a lower resistance state and a higher resistance state; and an insulating layer configured to electrically isolate the heater from said PCM material, and the heater from the first terminal. The third terminal of a first of the PCM switching devices is coupled to a set/reset switch, and the third terminal of the remaining PCM switching devices is coupled to the second terminal of an adjacent PCM switching device in a cascade configuration.Type: ApplicationFiled: February 27, 2012Publication date: June 21, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Lia Krusin-Elbaum, Dennis M. Newns, Matthew R. Wordeman
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Patent number: 8159854Abstract: A piezo-effect transistor (PET) device includes a piezoelectric (PE) material disposed between first and second electrodes; and a piezoresistive (PR) material disposed between the second electrode and a third electrode, wherein the first electrode comprises a gate terminal, the second electrode comprises a common terminal, and the third electrode comprises an output terminal such that an electrical resistance of the PR material is dependent upon an applied voltage across the PE material by way of an applied pressure to the PR material by the PE material.Type: GrantFiled: June 30, 2009Date of Patent: April 17, 2012Assignee: International Business Machines CorporationInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Glenn J. Martyna, Xiao Hu Liu, Dennis M. Newns
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Patent number: 8143609Abstract: A switching circuit includes a plurality of three-terminal PCM switching devices connected between a voltage supply terminal and a sub-block of logic. Each of the switching devices includes a PCM disposed in contact between a first terminal and a second terminal, a heating device disposed in contact between the second terminal and a third terminal, the heating device positioned proximate the PCM, and configured to switch the conductivity of a transformable portion of the PCM between a lower resistance state and a higher resistance state; and an insulating layer configured to electrically isolate the heater from said PCM material, and the heater from the first terminal. The third terminal of a first of the PCM switching devices is coupled to a set/reset switch, and the third terminal of the remaining PCM switching devices is coupled to the second terminal of an adjacent PCM switching device in a cascade configuration.Type: GrantFiled: September 1, 2009Date of Patent: March 27, 2012Assignee: International Business Machines CorporationInventors: Lia Krusin-Elbaum, Dennis M. Newns, Matthew R. Wordeman
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Patent number: 8053752Abstract: Reconfigurable devices and methods for the fabrication thereof are provided. In one aspect, a reconfigurable device is provided.Type: GrantFiled: January 8, 2011Date of Patent: November 8, 2011Assignee: International Business Machines CorporationInventors: Kuan-Neng Chen, Lia Krusin-Elbaum
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Publication number: 20110217836Abstract: Programmable via devices and methods for the fabrication thereof are provided. In one aspect, a programmable via device is provided.Type: ApplicationFiled: May 13, 2011Publication date: September 8, 2011Applicant: International Business Machines CorporationInventors: Kuan-Neng Chen, Lia Krusin-Elbaum, Dennis M. Newns, Sampath Purushothaman
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Patent number: 7977203Abstract: Programmable via devices and methods for the fabrication thereof are provided. In one aspect, a programmable via device is provided.Type: GrantFiled: August 20, 2009Date of Patent: July 12, 2011Assignee: International Business Machines CorporationInventors: Kuan-Neng Chen, Lia Krusin-Elbaum, Dennis M. Newns, Sampath Purushothaman
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Patent number: 7969770Abstract: Programmable via devices and methods for the fabrication thereof are provided. In one aspect, a programmable via device is provided.Type: GrantFiled: August 3, 2007Date of Patent: June 28, 2011Assignee: International Business Machines CorporationInventors: Kuan-Neng Chen, Lia Krusin-Elbaum, Dennis M. Newns, Sampath Purushothaman
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Publication number: 20110133603Abstract: A coupling structure for coupling piezoelectric material generated stresses to an actuated device of an integrated circuit includes a rigid stiffener structure formed around a piezoelectric (PE) material and the actuated device, the actuated device comprising a piezoresistive (PR) material that has an electrical resistance dependent upon an applied pressure thereto; and a soft buffer structure formed around the PE material and PR material, the buffer structure disposed between the PE and PR materials and the stiffener structure, wherein the stiffener structure clamps both the PE and PR materials to a substrate over which the PE and PR materials are formed, and wherein the soft buffer structure permits the PE material freedom to move relative to the PR material, thereby coupling stress generated by an applied voltage to the PE material to the PR material so as change the electrical resistance of the PR material.Type: ApplicationFiled: December 7, 2009Publication date: June 9, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Glenn J. Martyna, Xiao Hu Liu, Dennis M. Newns, Kuan-Neng Chen
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Publication number: 20110122682Abstract: A memory cell device includes a semiconductor nanowire extending, at a first end thereof, from a substrate; the nanowire having a doping profile so as to define a field effect transistor (FET) adjacent the first end, the FET further including a gate electrode at least partially surrounding the nanowire, the doping profile further defining a p-n junction in series with the FET, the p-n junction adjacent a second end of the nanowire; and a phase change material at least partially surrounding the nanowire, at a location corresponding to the p-n junction.Type: ApplicationFiled: November 23, 2009Publication date: May 26, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bruce G. Elmegreen, Lia Krusin-Elbaum, Dennis M. Newns, Robert L. Sandstrom
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Publication number: 20110102016Abstract: Reconfigurable devices and methods for the fabrication thereof are provided. In one aspect, a reconfigurable device is provided.Type: ApplicationFiled: January 8, 2011Publication date: May 5, 2011Applicant: International Business Machines CorporationInventors: Kuan-Neng Chen, Lia Krusin-Elbaum
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Patent number: 7888164Abstract: A method of fabricating a programmable via structure is provided. The method includes providing a patterned heating material on a surface of an oxide layer. The oxide layer is located above a semiconductor substrate. A patterned dielectric material is formed having a least one via on a surface of the patterned heating material. The at least one via is filled with a phase change material such that a lower surface of the phase change material is in direct contact with a portion of the patterned heating material. A patterned diffusion barrier is formed on an exposed surface of the at least one via filled with the phase change material. A method of programmable a programmable via structure made by the method is also disclosed.Type: GrantFiled: August 8, 2009Date of Patent: February 15, 2011Assignee: International Business Machines CorporationInventors: Kuan-Neng Chen, Lia Krusin-Elbaum, Chung H. Lam, Albert M. Young