Patents by Inventor Dustin W Carr
Dustin W Carr 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: 8797548Abstract: An apparatus and method for estimating a parameter of interest using values of a beam property from two or more electromagnetic beams that both pass through at least part of an optical displacement device. The apparatus may include a Fabry-Perot interferometer, a collimated light source, and a detection array. At least one mirror of the interferometer may be operably coupled to an element receiving an external stimulus, such as pressure, force, and/or acceleration. The method includes using the apparatus.Type: GrantFiled: February 16, 2012Date of Patent: August 5, 2014Assignee: Baker Hughes IncorporatedInventors: Carl M. Edwards, Dustin W. Carr, Steven R. Patterson
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Patent number: 8717580Abstract: An apparatus and method for estimating a parameter of interest using values of a beam property from two or more electromagnetic beams that both converge in an optical displacement device. The apparatus may include a Fabry-Perot interferometer, a light source, and a detection array. The electromagnetic beams may be converged one or more of: the interferometer and a convergence device. At least one reflective surface of the interferometer may be operably coupled to an element receiving an external stimulus, such as pressure, force, and/or acceleration. The method includes using the apparatus.Type: GrantFiled: July 19, 2012Date of Patent: May 6, 2014Assignee: Baker Hughes IncorporatedInventor: Dustin W. Carr
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Publication number: 20140022557Abstract: An apparatus and method for estimating a parameter of interest using values of a beam property from two or more electromagnetic beams that both converge in an optical displacement device. The apparatus may include a Fabry-Perot interferometer, a light source, and a detection array. The electromagnetic beams may be converged one or more of: the interferometer and a convergence device. At least one reflective surface of the interferometer may be operably coupled to an element receiving an external stimulus, such as pressure, force, and/or acceleration. The method includes using the apparatus.Type: ApplicationFiled: July 19, 2012Publication date: January 23, 2014Applicant: BAKER HUGHES INCORPORATEDInventor: Dustin W. Carr
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Publication number: 20120212745Abstract: An apparatus and method for estimating a parameter of interest using values of a beam property from two or more electromagnetic beams that both pass through at least part of an optical displacement device. The apparatus may include a Fabry-Perot interferometer, a collimated light source, and a detection array. At least one mirror of the interferometer may be operably coupled to an element receiving an external stimulus, such as pressure, force, and/or acceleration. The method includes using the apparatus.Type: ApplicationFiled: February 16, 2012Publication date: August 23, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Carl M. Edwards, Dustin W. Carr, Steven R. Patterson
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Patent number: 7355720Abstract: An optical displacement sensor is disclosed which uses a vertical-cavity surface-emitting laser (VCSEL) coupled to an optical cavity formed by a moveable membrane and an output mirror of the VCSEL. This arrangement renders the lasing characteristics of the VCSEL sensitive to any movement of the membrane produced by sound, vibrations, pressure changes, acceleration, etc. Some embodiments of the optical displacement sensor can further include a light-reflective diffractive lens located on the membrane or adjacent to the VCSEL to control the amount of lasing light coupled back into the VCSEL. A photodetector detects a portion of the lasing light from the VCSEL to provide an electrical output signal for the optical displacement sensor which varies with the movement of the membrane.Type: GrantFiled: December 20, 2005Date of Patent: April 8, 2008Assignee: Sandia CorporationInventor: Dustin W. Carr
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Patent number: 7212693Abstract: A portable waveguide sensor having one or more gratings. In one embodiment, the sensor has a waveguide, wherein a plurality of grooves imprinted onto the waveguide form a Bragg grating. The surface of the grooves has a functional layer adapted to bind a substance of interest, e.g., a biological pathogen. When the pathogen binds to the functional layer, the binding shifts the spectral reflection band corresponding to the Bragg grating such that a probe light previously reflected by the grating now passes through the grating, thereby indicating the presence of the pathogen. In another embodiment, the sensor has a Mach-Zehnder interferometer (MZI), one arm of which has a resonator formed by two Bragg gratings. The surface of the resonator between the gratings has a functional layer whereas the Bragg gratings themselves do not have such a layer.Type: GrantFiled: December 22, 2003Date of Patent: May 1, 2007Assignee: Lucent Technologies Inc.Inventors: Dustin W. Carr, Ho Bun Chan, Alex T. Tran
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Patent number: 7158693Abstract: The invention relates to devices and methods for detecting a ligand in a liquid, based on deflection of one or more microscopic cantilevers. Each cantilever has an optical waveguide fixed thereto or integral therewith. Deflection of the cantilever is detected by assessing coupling of light between the optical waveguide on the cantilever and an optical waveguide fixed distally thereto.Type: GrantFiled: September 29, 2005Date of Patent: January 2, 2007Assignee: Lucent Technologies Inc.Inventors: Alex T. Tran, Dustin W. Carr
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Patent number: 7145248Abstract: The planes of chips in a flip-chip arrangement, when at least one of the chips has an insulating layer running through it, may be electrically connected together by incorporating into the top chip a flexible metalized structure which is pinned to the top layer of the bottom chip using a wire bond ball which is connected to a wire that is attached to a pad on the top layer of the upper chip. A single connection connects both layers of the top chip to the layer on the bottom chip. The flexible structure may be similar to a collapsible cup with a hole in the middle or it may be a tiltable micro mirror.Type: GrantFiled: June 28, 2002Date of Patent: December 5, 2006Assignee: Lucent Technologies Inc.Inventors: Vladimir Anatolyevich Aksyuk, Dustin W Carr, Flavio Pardo
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Patent number: 6987898Abstract: The invention relates to devices and methods for detecting a ligand in a liquid, based on deflection of one or more microscopic cantilevers. Each cantilever has an optical waveguide fixed thereto or integral therewith. Deflection of the cantilever is detected by assessing coupling of light between the optical waveguide on the cantilever and an optical waveguide fixed distally thereto.Type: GrantFiled: July 23, 2003Date of Patent: January 17, 2006Assignee: Lucent Technologies Inc.Inventors: Alex T. Tran, Dustin W. Carr
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Patent number: 6930387Abstract: A tape assembly for use in wafer dicing includes a layer of adhesive dicing tape having a size at least as large as a footprint of a die, and a screening portion which is adhered to the tape. The screening portion is interposed between the layer of tape and the die when the die is adhered to the layer of tape. The screening portion covers an interior portion of the layer of tape. The screening portion is sized and shaped to leave a sufficient portion of the layer of tape underlying a perimeter of the die exposed to adhere the die to the layer of tape.Type: GrantFiled: January 22, 2003Date of Patent: August 16, 2005Assignee: Lucent Technologies Inc.Inventors: Dustin W. Carr, Flavio Pardo
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Patent number: 6900575Abstract: A resonator device utilizes two small mechanical resonators that are electrostatically coupled. A first resonator receives an input signal near its resonant frequency, and the input signal and a second signal are summed and provided to a second resonator. The resonant frequency of the second resonator is approximately equal to the second signal frequency. A width of response of the amplifier is tuned by varying the pump voltage. Resonant frequencies of corresponding individual oscillators are tuned by adjusting bias voltages.Type: GrantFiled: December 28, 2001Date of Patent: May 31, 2005Assignee: Cornell Research Foundation, Inc.Inventors: Anatoli Olkhovets, Dustin W. Carr, Harold G. Craighead, Jeeak M. Parpia
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Patent number: 6846087Abstract: A multilayer micromirror structure that exhibits substantially no form change as a result of a given change in temperature is disclosed. A reflective layer is disposed on a substrate layer, and a counterbalancing structure is disposed on the structure in a way such that a neutral plane is located at a predetermined position relative to the substrate layer and the reflective layer. When forces are exerted at the neutral plane of such a structure, the structure attains a predetermined geometric form. A method of manufacture is disclosed wherein a substrate is etched to define a desired structure and a conformal layer of a masking material is deposited onto the etched substrate. Further etching exposes portions of the substrate and silicon is deposited to achieve another desired structure. Excess material is etched away to free the finished structure and a reflective layer is deposited onto the surface of the structure.Type: GrantFiled: July 30, 2002Date of Patent: January 25, 2005Assignees: Lucent Technologies Inc., Agere Systems Inc.Inventors: Dustin W Carr, Christopher John Frye, Timofei Nikita Kroupenkine, Victor Alexander Lifton, Michael Patrick Schlax, Alex T Tran, Joseph J Vuillemin
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Publication number: 20040140532Abstract: A tape assembly for use in wafer dicing includes a layer of adhesive dicing tape having a size at least as large as a footprint of a die, and a screening portion which is adhered to the tape. The screening portion is interposed between the layer of tape and the die when the die is adhered to the layer of tape. The screening portion covers an interior portion of the layer of tape. The screening portion is sized and shaped to leave a sufficient portion of the layer of tape underlying a perimeter of the die exposed to adhere the die to the layer of tape.Type: ApplicationFiled: January 22, 2003Publication date: July 22, 2004Inventors: Dustin W. Carr, Flavio Pardo
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Patent number: 6743988Abstract: An optically controlled switch includes first and second electrodes, a channel extending between the electrodes, and a light source positioned to illuminate the channel. The light source produces a wavelength capable of changing the material's conductivity. The channel includes a photosensitive organic material and is configured to operate as a light controlled switch.Type: GrantFiled: May 23, 2001Date of Patent: June 1, 2004Assignee: Lucent Technologies Inc.Inventors: Zhenan Bao, David John Bishop, Robert Albert Boie, Dustin W. Carr, Edwin Arthur Chandross, Peter Kian-Hoon Ho
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Publication number: 20040021963Abstract: A multilayer micromirror structure that exhibits substantially no form change as a result of a given change in temperature is disclosed. A reflective layer is disposed on a substrate layer, and a counterbalancing structure is disposed on the structure in a way such that a neutral plane is located at a predetermined position relative to the substrate layer and the reflective layer. When forces are exerted at the neutral plane of such a structure, the structure attains a predetermined geometric form. A method of manufacture is disclosed wherein a substrate is etched to define a desired structure and a conformal layer of a masking material is deposited onto the etched substrate. Further etching exposes portions of the substrate and silicon is deposited to achieve another desired structure. Excess material is etched away to free the finished structure and a reflective layer is deposited onto the surface of the structure.Type: ApplicationFiled: July 30, 2002Publication date: February 5, 2004Inventors: Dustin W. Carr, Christopher John Frye, Timofei Nikita Kroupenkine, Victor Alexander Lifton, Michael Patrick Schlax, Alex T. Tran, Joseph J. Vuillemin
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Publication number: 20040000724Abstract: The planes of chips in a flip-chip arrangement, when at least one of the chips has an insulating layer running through it, may be electrically connected together by incorporating into the top chip a flexible metalized structure which is pinned to the top layer of the bottom chip using a wire bond ball which is connected to a wire that is attached to a pad on the top layer of the upper chip. A single connection connects both layers of the top chip to the layer on the bottom chip. The flexible structure may be similar to a collapsible cup with a hole in the middle or it may be a tiltable micro mirror.Type: ApplicationFiled: June 28, 2002Publication date: January 1, 2004Inventors: Vladimir Anatolyevich Aksyuk, Dustin W. Carr, Flavio Pardo
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Patent number: 6519075Abstract: A MEMs device comprises a component layer including a frame structure and at least one component movably coupled to the frame and an actuator layer including at least one conductive path and at least one actuator for moving the component. The component layer and the actuator layer are bonded together with solder or other materials in lateral alignment. Advantageously the layers are provided with metallization pads and are bonded together in lateral alignment with predetermined vertical gap spacing by solder bonds between the pads. In a preferred embodiment the MEMs device, however bonded, comprises a component layer, an actuator layer and an intervening spacer. The spacer provides the walls of a cavity between the component and the pertinent actuators to permit movement of the component. The walls cover the bulk of the peripheral boundary of the cavity to provide aerodynamic isolation. Advantageously the walls are conductive to provide electrostatic isolation.Type: GrantFiled: January 25, 2001Date of Patent: February 11, 2003Assignees: Agere Systems Inc., Lucent Technologies Inc.Inventors: Dustin W. Carr, Dennis S. Greywall, Sungho Jin, Flavio Pardo, Hyongsok Soh
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Patent number: 6515751Abstract: Electron beam lithography is used to make very small mechanical structures in single-crystal silicon. The structure may be a mesh having beam widths of less than 30 nm and suspended in a wafer, above a substrate. An rf drive voltage applied between the suspended structure and the underlying substrate produces vibration at or near the resonant frequency of the structure, and optical interference techniques are used to detect and measure the motion of the structure. The small dimensions of the structure provides a resonant frequency above 40 MHz. In one embodiment, the structure is a mesh formed of interconnected, very narrow, high aspect ratio parallel beams spaced about 315 nm apart. This results in a nanostructure having a low mass and a large relative surface area.Type: GrantFiled: March 8, 2000Date of Patent: February 4, 2003Assignee: Cornell Research Foundation Inc.Inventors: Harold G. Craighead, Dustin W. Carr, Lidija Sekaric
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Publication number: 20020176649Abstract: An optically controlled switch includes first and second electrodes, a channel extending between the electrodes, and a light source positioned to illuminate the channel. The light source produces a wavelength capable of changing the material's conductivity. The channel includes a photosensitive organic material and is configured to operate as a light controlled switch.Type: ApplicationFiled: May 23, 2001Publication date: November 28, 2002Inventors: Zhenan Bao, David John Bishop, Robert Albert Boie, Dustin W. Carr, Edwin Arthur Chandross, Peter Kian-Hoon Ho
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Patent number: 6442307Abstract: In accordance with the invention, a MEMs mirror device comprises a mirror layer including a frame structure and at least one mirror movably coupled to the frame and an actuator layer including at least one conductive path and at least one electrode for moving the mirror. The mirror layer and the actuator layer are provided with metallization pads and are bonded together in lateral alignment and with predetermined vertical gap spacing by solder bonds between the pads. The device has utility in optical cross connection, variable attenuation and power gain equalization.Type: GrantFiled: November 3, 2000Date of Patent: August 27, 2002Assignees: Lucent Technologies Inc., Agere Systems Guardian Corp.Inventors: Dustin W. Carr, Dennis S. Greywall, Sungho Jin, Flavio Pardo, Hyongsok Soh