Patents by Inventor Robert Groves
Robert Groves 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: 7053460Abstract: A passive electrical device includes a first electrical conductor, a second electrical conductor disposed over the first conductor; and a third electrical conductor connecting the first conductor to the second conductor. The said first, second and third conductors are disposed on a semiconductor substrate. The sheet resistivity of the first conductor is approximately equal to the sheet resistivity of the second conductor.Type: GrantFiled: December 21, 2001Date of Patent: May 30, 2006Assignee: International Business Machines CorporationInventors: Richard P. Volant, Seshadri Subbanna, Robert A. Groves, John C. Malinowski, Kenneth J. Stein, Kevin S. Petrarca
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Patent number: 7045372Abstract: A method and structure that provides a battery within an integrated circuit for providing voltage to low-current electronic devices that exist within the integrated circuit. The method includes Front-End-Of-Line (FEOL) processing for generating a layer of electronic devices on a semiconductor wafer, followed by Back-End-Of-Line (BEOL) integration for wires connecting the electronic devices together to form completed electrical circuits of the integrated circuit. The BEOL integration includes forming a multilayered structure of wiring levels on the layer of electronic devices. Each wiring level includes conductive metallization (e.g., metal-plated vias, conductive wiring lines, etc.) embedded in insulative material. The battery is formed during BEOL integration within one or more wiring levels, and the conductive metallization conductively couples positive and negative terminals of the battery to the electronic devices.Type: GrantFiled: August 2, 2003Date of Patent: May 16, 2006Assignee: International Business Machines CorporationInventors: Arne W. Ballantine, Robert A. Groves, Jennifer L. Lund, James S. Nakos, Michael B. Rice, Anthony K. Stamper
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Patent number: 7005371Abstract: A method for forming a transmission line structure for a semiconductor device includes forming an interlevel dielectric layer over a first metallization level, removing a portion of the interlevel dielectric layer and forming a sacrificial material within one or more voids created by the removal of the portion of the interlevel dielectric layer. A signal transmission line is formed in a second metallization level formed over the interlevel dielectric layer, the signal transmission line being disposed over the sacrificial material. A portion of dielectric material included within the second metallization level is removed so as to expose the sacrificial material, wherein a portion of the sacrificial material is exposed through a plurality of access holes formed through the signal transmission line. The sacrificial material is removed so as to create an air gap beneath the signal transmission line.Type: GrantFiled: April 29, 2004Date of Patent: February 28, 2006Assignee: International Business Machines CorporationInventors: Anil K. Chinthakindi, Robert A. Groves, Youri V. Tretiakov, Kunal Vaed, Richard P. Volant
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Publication number: 20060009749Abstract: A diffuse light source assembly and method including a light source for generating forward propagating light, a solid lightguide disposed adjacent the light source, a diffuser and a back reflecting surface. The solid lightguide includes an input face for receiving the forward propagating light, a sidewall for conveying the forward propagating light via total internal reflection, and an output face for transmitting the forward propagating light. The diffuser is disposed adjacent the output face for diffusing the transmitted forward propagating light, wherein a portion of the forward propagating light is transformed into reverse propagating light, by at least one of the output face and the diffuser, that is conveyed by sidewall via total internal reflection and transmitted by the input face. The back reflecting surface is disposed adjacent the light source for reflecting the reverse propagating light back into the lightguide via the input face.Type: ApplicationFiled: June 20, 2005Publication date: January 12, 2006Inventors: Mark Weckwerth, Tobin Island, Robert Grove, Harvey Liu
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Publication number: 20050245063Abstract: A method for forming a transmission line structure for a semiconductor device includes forming an interlevel dielectric layer over a first metallization level, removing a portion of the interlevel dielectric layer and forming a sacrificial material within one or more voids created by the removal of the portion of the interlevel dielectric layer. A signal transmission line is formed in a second metallization level formed over the interlevel dielectric layer, the signal transmission line being disposed over the sacrificial material. A portion of dielectric material included within the second metallization level is removed so as to expose the sacrificial material, wherein a portion of the sacrificial material is exposed through a plurality of access holes formed through the signal transmission line. The sacrificial material is removed so as to create an air gap beneath the signal transmission line.Type: ApplicationFiled: April 29, 2004Publication date: November 3, 2005Inventors: Anil Chinthakindi, Robert Groves, Youri Tretiakov, Kunal Vaed, Richard Volant
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Patent number: 6936764Abstract: Three dimensional dynamically shielded high quality factor (Q) BEOL metal elements, such as inductor elements, are disclosed. Three dimensional shielding structures for the BEOL elements reduce or eliminate parasitic substrate capacitive coupling between the BEOL element and the conductive substrate, and parasitic shunt capacitance coupling between different adjacent shunt sections of the BEOL element. The reduction or elimination of the parasitic capacitive components provides high Q BEOL metal elements such as inductor elements. The three dimensional shield structure includes a lower shield surface having a width greater than the width of the BEOL element, and opposed side shield surfaces which extend upwardly from opposite side edges of the lower shield surface, such that the three dimensional shield element forms a U shaped shield around the BEOL element.Type: GrantFiled: August 12, 2003Date of Patent: August 30, 2005Assignee: International Business Machines CorporationInventors: Robert A. Groves, Jae-Eun Park
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Publication number: 20050156695Abstract: A microelectromechanical switch including: at least one pair of actuator electrodes; at least one input electrode and at least one output electrode for input and output, respectively, of a radio frequency signal; and a beam movable by an attraction between the at least one pair of actuator electrodes, the movable beam having at least a portion electrically connected to the at least one input electrode and to the at least one output electrode when moved by the attraction between the at least one pair of actuator electrodes to make an electrical connection between the at least one input and output electrodes; wherein the at least one pair of actuator electrodes are electrically isolated from each of the at least one input and output electrodes. The microelectromechanical switch can be configured in single or multiple-poles and/or single or multiple throws.Type: ApplicationFiled: February 8, 2005Publication date: July 21, 2005Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Panayotis Andricacos, L. Buchwalter, Hariklia Deligianni, Robert Groves, Christopher Jahnes, Jennifer Lund, Michael Meixner, David Seeger, Timothy Sullivan, Ping-Chuan Wang
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Publication number: 20050104157Abstract: A high performance inductor which has a relatively low sheet resistance that can be integrated within a semiconductor interconnect structure and can be used in RF applications, including RF CMOS and SiGe technologies, is provided. The inductor is either a dual-metal inductor including a first layer of metal which serves as an upper metal wire in the semiconductor structure and a second layer of metal located directly on top of the first layer of metal, or a tri metal inductor, which includes a third layer of metal located directly on top of the second layer of metal. No vias are located between the various metal layers of the inventive inductor.Type: ApplicationFiled: November 19, 2003Publication date: May 19, 2005Applicant: International Business Machines CorporationInventors: Douglas Coolbaugh, Daniel Edelstein, Robert Groves, Zhong-Xiang He
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Patent number: 6876282Abstract: A microelectromechanical switch including: at least one pair of actuator electrodes; at least one input electrode and at least one output electrode for input and output, respectively, of a radio frequency signal; and a beam movable by an attraction between the at least one pair of actuator electrodes, the movable beam having at least a portion electrically connected to the at least one input electrode and to the at least one output electrode when moved by the attraction between the at least one pair of actuator electrodes to make an electrical connection between the at least one input and output electrodes; wherein the at least one pair of actuator electrodes are electrically isolated from each of the at least one input and output electrodes. The microelectromechanical switch can be configured in single or multiple-poles and/or single or multiple throws.Type: GrantFiled: May 17, 2002Date of Patent: April 5, 2005Assignee: International Business Machines CorporationInventors: Panayotis Constantinou Andricacos, L. Paivikki Buchwalter, Hariklia Deligianni, Robert A. Groves, Christopher Jahnes, Jennifer L. Lund, Michael Meixner, David Earle Seeger, Timothy D. Sullivan, Ping-Chuan Wang
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Publication number: 20050065671Abstract: A system for graphically displaying on a cockpit display an indication of closure (i.e. a “closure indictor”) with a selected target aircraft. In a preferred embodiment of the invention, the system only displays a closure indicator if: (1) the selected target aircraft is within a pre-determined monitoring zone; and (2) the track of the selected target aircraft is within a pre-determined variation angle of the track of the Own Ship aircraft. If the rate of closure between the selected target aircraft and the Own Ship aircraft is within a predetermined range of values, the closure indicator includes a closing/receding indicia (such as an upwardly or downwardly directed arrow) that indicates whether the Own Ship aircraft is closing in on or receding from the selected target aircraft. The system preferably removes the closure indicator from display when the Own Ship aircraft or the selected target aircraft ceases to be airborne.Type: ApplicationFiled: October 18, 2004Publication date: March 24, 2005Inventors: Steve Horvath, Robert Grove, Craig Bowers
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Publication number: 20050034885Abstract: Three dimensional dynamically shielded high quality factor (Q) BEOL metal elements, such as inductor elements, are disclosed. Three dimensional shielding structures for the BEOL elements reduce or eliminate parasitic substrate capacitive coupling between the BEOL element and the conductive substrate, and parasitic shunt capacitance coupling between different adjacent shunt sections of the BEOL element. The reduction or elimination of the parasitic capacitive components provides high Q BEOL metal elements such as inductor elements. The three dimensional shield structure includes a lower shield surface having a width greater than the width of the BEOL element, and opposed side shield surfaces which extend upwardly from opposite side edges of the lower shield surface, such that the three dimensional shield element forms a U shaped shield around the BEOL element.Type: ApplicationFiled: August 12, 2003Publication date: February 17, 2005Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Robert Groves, Jae-Eun Park
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Patent number: 6836029Abstract: A micro-electro mechanical switch having a restoring force sufficiently large to overcome stiction is described. The switch is provided with a deflectable conductive beam and multiple electrodes coated with an elastically deformable conductive layer. A restoring force which is initially generated by a single spring constant k0 upon the application of a control voltage between the deflectable beam and a control electrode coplanar to the contact electrodes is supplemented by adding to k0 additional spring constants k1, . . . , kn provided by the deformable layers, once the switch nears closure and the layers compress. In another embodiment, deformable, spring-like elements are used in lieu of the deformable layers.Type: GrantFiled: November 28, 2001Date of Patent: December 28, 2004Assignee: International Business Machines CorporationInventors: David R. Greenberg, Hariklia Deligianni, Robert A. Groves, Christopher V. Jahnes, Jennifer L. Lund, Katherine L. Saenger, Richard P. Volant
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Patent number: 6833603Abstract: High quality factor (Q) inductor elements with dynamically driven, conductive, patterned shields are disclosed wherein a conductive, patterned shield structure/layer is provided between the inductor element and the substrate. The patterned shield is dynamically driven to the same electrical potential as the inductor element, to reduce or eliminate parasitic capacitive coupling between the inductor element and the conductive substrate. The patterned shield is patterned to form a plurality of conductive segments which are insulated from each other such that eddy currents cannot flow from one conductive segment to an adjacent conductive segment, to prevent the flow of eddy currents in the patterned shield when it is dynamically driven to the same electrical potential as the inductor element.Type: GrantFiled: August 11, 2003Date of Patent: December 21, 2004Assignee: International Business Machines CorporationInventors: Jae-Eun Park, Robert A. Groves
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Patent number: 6831542Abstract: A micro-electro mechanical (MEM) switch capable of inductively coupling and decoupling electrical signals is described. The inductive MEM switch consists of a first plurality of coils on a movable platform and a second plurality of coils on a stationary platform or substrate, the coils on the movable platform being above or below those in the stationary substrate. Coupling and decoupling occurs by rotating or by laterally displacing the coils of the movable platform with respect to the coils on the stationary substrate. Diverse arrangements of coils respectively on the movable and stationary substrates allow for a multi-pole and multi-position switching configurations. The MEM switches described eliminate problems of stiction, arcing and welding of the switch contacts. The MEMS switches of the invention can be fabricated using standard CMOS techniques.Type: GrantFiled: February 26, 2003Date of Patent: December 14, 2004Assignee: International Business Machines CorporationInventors: Richard P. Volant, John E. Florkey, Robert A. Groves
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Patent number: 6826458Abstract: A system for graphically displaying on a cockpit display an indication of closure (i.e. a “closure indictor”) with a selected target aircraft. In a preferred embodiment of the invention, the system only displays a closure indicator if: (1) the selected target aircraft is within a predetermined monitoring zone; and (2) the track of the selected target aircraft is within a pre-determined variation angle of the track of the Own Ship aircraft. If the rate of closure between the selected target aircraft and the Own Ship aircraft is within a predetermined range of values, the closure indicator includes a closing/receding indicia (such as an upwardly or downwardly directed arrow) that indicates whether the Own Ship aircraft is closing in on or receding from the selected target aircraft. The system preferably removes the closure indicator from display when the Own Ship aircraft or the selected target aircraft ceases to be airborne.Type: GrantFiled: October 25, 2001Date of Patent: November 30, 2004Assignee: Garmin AT, Inc.Inventors: Steve Horvath, Robert Grove, Craig Bowers
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Patent number: 6798029Abstract: A method of fabricating micro-electromechanical switches (MEMS) integrated with conventional semiconductor interconnect levels, using compatible processes and materials is described. The method is based upon fabricating a capacitive switch that is easily modified to produce various configurations for contact switching and any number of metal-dielectric-metal switches. The process starts with a copper damascene interconnect layer, made of metal conductors inlaid in a dielectric. All or portions of the copper interconnects are recessed to a degree sufficient to provide a capacitive air gap when the switch is in the closed state, as well as provide space for a protective layer of, e.g., Ta/TaN. The metal structures defined within the area specified for the switch act as actuator electrodes to pull down the movable beam and provide one or more paths for the switched signal to traverse.Type: GrantFiled: May 9, 2003Date of Patent: September 28, 2004Assignee: International Business Machines CorporationInventors: Richard P. Volant, John C. Bisson, Donna R. Cote, Timothy J. Dalton, Robert A. Groves, Kevin S. Petrarca, Kenneth J. Stein, Seshadri Subbanna
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Publication number: 20040164825Abstract: A micro-electromechanical (MEM) switch capable of inductively coupling and decoupling electrical signals is described. The inductive MEM switch consists of a first plurality of coils on a moveable platform and a second plurality of coils on a stationary platform or substrate, the coils on the moveable platform being above or below those in the stationary substrate. Coupling and decoupling occurs by rotating or by laterally displacing the coils of the moveable platform with respect to the coils on the stationary substrate. Diverse arrangements of coils respectively on the moveable and stationary substrates allow for a multi-pole and multi-position switching configurations. The MEM switches described eliminate problems of stiction, arcing and welding of the switch contacts. The MEMS switches of the invention can be fabricated using standard CMOS techniques.Type: ApplicationFiled: February 26, 2003Publication date: August 26, 2004Applicant: International Business Machines CorporationInventors: Richard P. Volant, John E. Florkey, Robert A. Groves
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Patent number: 6762088Abstract: Inductor losses to a semiconducting substrate are eliminated in an IC structure by etching a well into the substrate down to the insulating layer coating the substrate and fabricating a grounded Faraday shield in the shape of elongated segments in the bottom of the well. The well lies directly below the inductor and is optionally filled with cured low-k organic dielectric or air.Type: GrantFiled: January 3, 2003Date of Patent: July 13, 2004Assignee: International Business Machines CorporationInventors: Raul E. Acosta, Jennifer L. Lund, Robert A. Groves, Joanna Rosner, Steven A. Cordes, Melanie L. Carasso
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Patent number: 6762479Abstract: A transistor array including a plurality of transistors. Each transistor includes an emitter. An emitter region contact overlies each emitter region. At least one base region underlies each emitter region and is common to a plurality of transistors in the array. At least one base contact overlies the at least one base region and is associated with each transistor. A plurality of the base contacts are common to at least two transistors in the array. At least one collector reach through is associated with each transistor. A collector reach through contact overlies each collector reach through. A buried layer subcollector region of electrically conducting material electrically connects the collector reach through region to the collector pedestal region of each transistor.Type: GrantFiled: November 6, 1998Date of Patent: July 13, 2004Assignee: International Business Machines CorporationInventors: Robert A. Groves, Dale K. Jadus, Dominique L. Nguyen-Ngoc, Keith M. Walter
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Publication number: 20040126921Abstract: A method of fabricating micro-electromechanical switches (MEMS) integrated with conventional semiconductor interconnect levels, using compatible processes and materials is described. The method is based upon fabricating a capacitive switch that is easily modified to produce various configurations for contact switching and any number of metal-dielectric-metal switches. The process starts with a copper damascene interconnect layer, made of metal conductors inlaid in a dielectric. All or portions of the copper interconnects are recessed to a degree sufficient to provide a capacitive air gap when the switch is in the closed state, as well as provide space for a protective layer of, e.g., Ta/TaN. The metal structures defined within the area specified for the switch act as actuator electrodes to pull down the movable beam and provide one or more paths for the switched signal to traverse.Type: ApplicationFiled: May 9, 2003Publication date: July 1, 2004Inventors: Richard P. Volant, John C. Bisson, Donna R. Cote, Timothy J. Dalton, Robert A. Groves, Kevin S. Petrarca, Kenneth J. Stein, Seshadri Subbanna