Patents by Inventor Joseph M. Lukaitis
Joseph M. Lukaitis 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: 10985156Abstract: The present disclosure relates to an electrostatic discharge (ESD) clamp and, more particularly, to an ESD clamp with reduced off-state power consumption. The structure includes: one or more inverters connected to a timing circuit; a first transistor receiving an output signal from a last of the one or more inverters and an output signal from the timing circuit; a second transistor with its gate connected to the first transistor, in series; and a voltage node providing a separate voltage to a gate of the second transistor.Type: GrantFiled: January 10, 2018Date of Patent: April 20, 2021Assignee: Marvell Asia Pte., Ltd.Inventors: Ahmed Y. Ginawi, Andreas D. Stricker, Alain F. Loiseau, Ephrem G. Gebreselasie, Joseph M. Lukaitis, Richard A. Poro, III
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Publication number: 20190214381Abstract: The present disclosure relates to an electrostatic discharge (ESD) clamp and, more particularly, to an ESD clamp with reduced off-state power consumption. The structure includes: one or more inverters connected to a timing circuit; a first transistor receiving an output signal from a last of the one or more inverters and an output signal from the timing circuit; a second transistor with its gate connected to the first transistor, in series; and a voltage node providing a separate voltage to a gate of the second transistor.Type: ApplicationFiled: January 10, 2018Publication date: July 11, 2019Inventors: Ahmed Y. GINAWI, Andreas D. Stricker, Alain F. Loiseau, Ephrem G. Gebreselasie, Joseph M. Lukaitis, Richard A. Poro, III
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Patent number: 9940986Abstract: The present disclosure relates to semiconductor structures and, more particularly, to electrostatic discharge (ESD) protection structures for eFuses. The structure includes an electrostatic discharge (ESD) protection structure operatively coupled to an eFuse, which is structured to prevent unintentional programming of the eFuse due to an ESD event originating at a source.Type: GrantFiled: December 16, 2015Date of Patent: April 10, 2018Assignee: GLOBALFOUNDRIES INC.Inventors: Alain F. Loiseau, Joseph M. Lukaitis, Ephrem G. Gebreselasie, Richard A. Poro, Andreas D. Stricker, Ahmed Y. Ginawi
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Publication number: 20170178704Abstract: The present disclosure relates to semiconductor structures and, more particularly, to electrostatic discharge (ESD) protection structures for eFuses. The structure includes an electrostatic discharge (ESD) protection structure operatively coupled to an eFuse, which is structured to prevent unintentional programming of the eFuse due to an ESD event originating at a source.Type: ApplicationFiled: December 16, 2015Publication date: June 22, 2017Inventors: Alain F. LOISEAU, Joseph M. Lukaitis, Ephrem G. Gebreselasie, Richard A. Poro, Andreas D. Stricker, Ahmed Y. Ginawi
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Patent number: 9568538Abstract: A method for matching a pair of matched bipolar transistors in an integrated circuit is disclosed. Within a device, it is determined which transistor is a correctable transistor of the pair of bipolar transistors. The correctable transistor is the transistor of the pair of bipolar transistors having a chosen characteristic which when electrically stressed will converge with a chosen characteristic of the other transistor of the pair of bipolar transistors. The pair of bipolar transistors are matched by electrically stressing the correctable transistor of the bipolar transistors.Type: GrantFiled: October 21, 2015Date of Patent: February 14, 2017Assignee: International Business Machines CorporationInventors: Ephrem G Gebreselasie, Alain Loiseau, Joseph M Lukaitis, Richard Antoine Poro, Andreas Daniel Stricker, Kimball Watson
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Publication number: 20160379999Abstract: Methods and structures for capacitively isolating a heat shield from a handle wafer of a silicon-on-insulator substrate. A contact plug is located in a trench extending through a trench isolation region in a device layer of the silicon-on-insulator substrate and at least partially through a buried insulator layer of the silicon-on-insulator substrate. The heat shield is located in an interconnect structure, which also includes a wire coupling the heat shield with the contact plug. An isolation structure is positioned between the contact plug and a portion of the handle wafer. The isolation structure provides the capacitive isolation.Type: ApplicationFiled: June 24, 2015Publication date: December 29, 2016Inventors: Anthony I. Chou, Sungjae Lee, Joseph M. Lukaitis, Robert R. Robison
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Patent number: 9530798Abstract: Methods and structures for capacitively isolating a heat shield from a handle wafer of a silicon-on-insulator substrate. A contact plug is located in a trench extending through a trench isolation region in a device layer of the silicon-on-insulator substrate and at least partially through a buried insulator layer of the silicon-on-insulator substrate. The heat shield is located in an interconnect structure, which also includes a wire coupling the heat shield with the contact plug. An isolation structure is positioned between the contact plug and a portion of the handle wafer. The isolation structure provides the capacitive isolation.Type: GrantFiled: June 24, 2015Date of Patent: December 27, 2016Assignee: GLOBALFOUNDRIES Inc.Inventors: Anthony I. Chou, Sungjae Lee, Joseph M. Lukaitis, Robert R. Robison
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Publication number: 20160118138Abstract: Circuits for programming an electrical fuse, methods for programming an electrical fuse, and methods for designing a silicon-controlled rectifier for use in programming an electrical fuse. A programming current for the electrical fuse is directed through the electrical fuse and the silicon-controlled rectifier. Upon reaching a programmed resistance value for the electrical fuse, the silicon-controlled rectifier switches from a low-impedance state to a high-impedance state that interrupts the programming current.Type: ApplicationFiled: October 23, 2014Publication date: April 28, 2016Inventors: Ephrem G. Gebreselasie, Alain Loiseau, Joseph M. Lukaitis, Richard A. Poro, III, Andreas D. Stricker
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Patent number: 9318217Abstract: Circuits for programming an electrical fuse, methods for programming an electrical fuse, and methods for designing a silicon-controlled rectifier for use in programming an electrical fuse. A programming current for the electrical fuse is directed through the electrical fuse and the silicon-controlled rectifier. Upon reaching a programmed resistance value for the electrical fuse, the silicon-controlled rectifier switches from a low-impedance state to a high-impedance state that interrupts the programming current.Type: GrantFiled: October 23, 2014Date of Patent: April 19, 2016Assignee: GLOBALFOUNDRIES INC.Inventors: Ephrem G. Gebreselasie, Alain Loiseau, Joseph M. Lukaitis, Richard A. Poro, III, Andreas D. Stricker
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Patent number: 8765568Abstract: A structure and method of fabricating the structure includes a semiconductor substrate having a top surface defining a horizontal direction and a plurality of interconnect levels stacked from a lowermost level proximate the top surface of the semiconductor substrate to an uppermost level furthest from the top surface. Each of the interconnect levels include vertical metal conductors physically connected to one another in a vertical direction perpendicular to the horizontal direction. The vertical conductors in the lowermost level being physically connected to the top surface of the substrate, and the vertical conductors forming a heat sink connected to the semiconductor substrate. A resistor is included in a layer immediately above the uppermost level. The vertical conductors being aligned under a downward vertical resistor footprint of the resistor, and each interconnect level further include horizontal metal conductors positioned in the horizontal direction and being connected to the vertical conductors.Type: GrantFiled: October 8, 2013Date of Patent: July 1, 2014Assignee: International Business Machines CorporationInventors: Joseph M. Lukaitis, Deborah M. Massey, Timothy D. Sullivan, Ping-Chuan Wang, Kimball M. Watson
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Patent number: 8652922Abstract: A method of forming a semiconductor structure includes forming a resistor on an insulator layer over a substrate and forming a trench in the resistor and into the substrate. The method also includes forming a liner on sidewalls of the trench and forming a core comprising a high thermal conductivity material in the trench and on the liner.Type: GrantFiled: January 18, 2011Date of Patent: February 18, 2014Assignee: International Business Machines CorporationInventors: Joseph M. Lukaitis, Jed H. Rankin, Robert R. Robison, Dustin K. Slisher, Timothy D. Sullivan
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Publication number: 20140038381Abstract: A structure and method of fabricating the structure includes a semiconductor substrate having a top surface defining a horizontal direction and a plurality of interconnect levels stacked from a lowermost level proximate the top surface of the semiconductor substrate to an uppermost level furthest from the top surface. Each of the interconnect levels include vertical metal conductors physically connected to one another in a vertical direction perpendicular to the horizontal direction. The vertical conductors in the lowermost level being physically connected to the top surface of the substrate, and the vertical conductors forming a heat sink connected to the semiconductor substrate. A resistor is included in a layer immediately above the uppermost level. The vertical conductors being aligned under a downward vertical resistor footprint of the resistor, and each interconnect level further include horizontal metal conductors positioned in the horizontal direction and being connected to the vertical conductors.Type: ApplicationFiled: October 8, 2013Publication date: February 6, 2014Applicant: International Business Machines CorporationInventors: Joseph M. Lukaitis, Deborah M. Massey, Timothy D. Sullivan, Ping-Chuan Wang, Kimball M. Watson
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Patent number: 8592947Abstract: A structure and method of fabricating the structure includes a semiconductor substrate having a top surface defining a horizontal direction and a plurality of interconnect levels stacked from a lowermost level proximate the top surface of the semiconductor substrate to an uppermost level furthest from the top surface. Each of the interconnect levels include vertical metal conductors physically connected to one another in a vertical direction perpendicular to the horizontal direction. The vertical conductors in the lowermost level being physically connected to the top surface of the substrate, and the vertical conductors forming a heat sink connected to the semiconductor substrate. A resistor is included in a layer immediately above the uppermost level. The vertical conductors being aligned under a downward vertical resistor footprint of the resistor, and each interconnect level further include horizontal metal conductors positioned in the horizontal direction and being connected to the vertical conductors.Type: GrantFiled: December 8, 2010Date of Patent: November 26, 2013Assignee: International Business Machines CorporationInventors: Joseph M. Lukaitis, Deborah M. Massey, Timothy D. Sullivan, Ping-Chuan Wang, Kimball M. Watson
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Patent number: 8541864Abstract: A method of forming a semiconductor structure includes forming a resistor on an insulator layer over a substrate, and forming at least one dielectric layer over the resistor. The method also includes forming a substrate contact through the at least one dielectric layer, through the resistor, through the insulator layer, and into the substrate. The substrate contact comprises a high thermal conductivity material.Type: GrantFiled: August 17, 2012Date of Patent: September 24, 2013Assignee: International Business Machines CorporationInventors: Joseph M. Lukaitis, Jed H. Rankin, Robert R. Robison, Dustin K. Slisher, Timothy D. Sullivan
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Patent number: 8530319Abstract: An apparatus and a method of manufacturing an e-fuse includes a substrate, a patterned gate insulator on the substrate, and a patterned gate conductor on the patterned gate insulator. The patterned gate conductor has sidewalls and a top. A silicide contacts the sidewalls of the patterned gate conductor, the top of the patterned gate conductor, and a region of the substrate adjacent the patterned gate insulator and the patterned gate conductor.Type: GrantFiled: October 14, 2010Date of Patent: September 10, 2013Assignee: International Business Machines CorporationInventors: Ephrem G. Gebreselasie, Joseph M. Lukaitis, Robert R. Robison, William R. Tonti, Ping-Chuan Wang
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Patent number: 8486796Abstract: A method of forming a semiconductor structure includes: forming a resistor over a substrate; forming at least one first contact in contact with the resistor; and forming at least one second contact in contact with the resistor. The resistor is structured and arranged such that current flows from the at least one first contact to the at least one second contact through a central portion of the resistor. The resistor includes at least one extension extending laterally outward from the central portion in a direction parallel to the current flow. The method includes sizing the at least one extension based on a thermal diffusion length of the resistor.Type: GrantFiled: November 19, 2010Date of Patent: July 16, 2013Assignee: International Business Machines CorporationInventors: David L. Harmon, Joseph M. Lukaitis, Stewart E. Rauch, III, Robert R. Robison, Dustin K. Slisher, Jeffrey H. Sloan, Timothy D. Sullivan, Kimball M. Watson
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Patent number: 8378447Abstract: An electrically programmable fuse includes an anode, a cathode, and a fuse link conductively connecting the cathode with the anode, which is programmable by applying a programming current. The anode and the fuse link each include a polysilicon layer and a silicide layer formed on the polysilicon layer, and the cathode includes the polysilicon layer and a partial silicide layer formed on a predetermined portion of the polysilicon layer of the cathode located adjacent to a cathode junction where the cathode and the fuse link meet.Type: GrantFiled: April 13, 2011Date of Patent: February 19, 2013Assignee: International Business Machines CorporationInventors: Kaushik Chanda, Ronald G. Filippi, Joseph M. Lukaitis, Ping-Chuan Wang
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Publication number: 20120313215Abstract: A method of forming a semiconductor structure includes forming a resistor on an insulator layer over a substrate, and forming at least one dielectric layer over the resistor. The method also includes forming a substrate contact through the at least one dielectric layer, through the resistor, through the insulator layer, and into the substrate. The substrate contact comprises a high thermal conductivity material.Type: ApplicationFiled: August 17, 2012Publication date: December 13, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joseph M. LUKAITIS, Jed H. RANKIN, Robert R. ROBISON, Dustin K. SLISHER, Timothy D. SULLIVAN
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Patent number: 8298904Abstract: A method of forming a semiconductor structure includes forming a resistor on an insulator layer over a substrate, and forming at least one dielectric layer over the resistor. The method also includes forming a substrate contact through the at least one dielectric layer, through the resistor, through the insulator layer, and into the substrate. The substrate contact comprises a high thermal conductivity material.Type: GrantFiled: January 18, 2011Date of Patent: October 30, 2012Assignee: International Business Machines CorporationInventors: Joseph M. Lukaitis, Jed H. Rankin, Robert R. Robison, Dustin K. Slisher, Timothy D. Sullivan
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Publication number: 20120184080Abstract: A method of forming a semiconductor structure includes forming a resistor on an insulator layer over a substrate, and forming at least one dielectric layer over the resistor. The method also includes forming a substrate contact through the at least one dielectric layer, through the resistor, through the insulator layer, and into the substrate. The substrate contact comprises a high thermal conductivity material.Type: ApplicationFiled: January 18, 2011Publication date: July 19, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joseph M. LUKAITIS, Jed H. RANKIN, Robert R. ROBISON, Dustin K. SLISHER, Timothy D. SULLIVAN