Patents by Inventor Eric R. Dufresne
Eric R. Dufresne 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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Publication number: 20090250601Abstract: A method of manufacturing a semiconductor device able to reduce the number of manufacturing steps and attain the rationalization of a manufacturing line is disclosed. The semiconductor device is a high-frequency module assembled by mounting chip parts (22) and semiconductor pellets (21) onto each of wiring substrates (2) formed on a matrix substrate (27) after inspection. A defect mark (2e) is affixed to a wiring substrate (2) as a block judged to be defective in the inspection of the matrix substrate (27), then in a series of subsequent assembling steps the defect mark (e) is recognized and the assembling work for the wiring substrate (2) with the defect mark (2e) thereon is omitted to attain the rationalization of a manufacturing line.Type: ApplicationFiled: April 1, 2009Publication date: October 8, 2009Applicant: THE UNIVERSITY OF CHICAGOInventors: David G. Grier, Eric R. Dufresne
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Patent number: 7588940Abstract: An apparatus and method for manipulating, effecting interaction of, photochemically transforming and/or sorting small dielectric particles or other materials. The apparatus and method involves use of one or more diffractive optical elements which each receive a laser beam and form a plurality of laser beams. These laser beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating, effecting interaction of, photochemically transforming and/or sorting small dielectric particles or other materials.Type: GrantFiled: January 6, 2005Date of Patent: September 15, 2009Assignee: University of ChicagoInventors: David G. Grier, Eric R. Dufresne
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Patent number: 7227688Abstract: An apparatus and method for manipulating small dielectric particles. The apparatus and method involves use of a diffractive optical element which receives a laser beam and forms a plurality of light beams. These light beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating small dielectric particles.Type: GrantFiled: September 22, 2003Date of Patent: June 5, 2007Assignee: National Science FoundationInventors: David G. Grier, Eric R. Dufresne
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Patent number: 7133203Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps.Type: GrantFiled: December 5, 2002Date of Patent: November 7, 2006Assignee: Arch Development CorporationInventors: David G. Grier, Eric R. Dufresne
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Patent number: 7104659Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays using light that is in the visible portion of the spectrum. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps. By avoiding wavelengths associated with strong absorption in the underlying material, creating optical traps with a continuous-wave laser, optimizing the efficiency of individual traps, and trapping extended samples at multiple points, the rate of deleterious nonlinear optical processes can be minimized.Type: GrantFiled: December 10, 2004Date of Patent: September 12, 2006Assignee: University of ChicagoInventors: David G. Grier, Eric R. Dufresne, Jennifer E. Curtis, Brian A. Koss
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Patent number: 6863406Abstract: An apparatus and method for manipulating, effecting interaction of, photochemically transforming and/or sorting small dielectric particles or other materials. The apparatus and method involves use of one or more diffractive optical elements which each receive a laser beam and form a plurality of laser beams. These laser beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating, effecting interaction of, photochemically transforming and/or sorting small dielectric particles or other materials.Type: GrantFiled: August 1, 2002Date of Patent: March 8, 2005Assignee: The University of ChicagoInventors: David G. Grier, Eric R. Dufresne
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Patent number: 6846084Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays using light that is in the visible portion of the spectrum. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps. By avoiding wavelengths associated with strong absorption in the underlying material, creating optical traps with a continuous-wave laser, optimizing the efficiency of individual traps, and trapping extended samples at multiple points, the rate of deleterious nonlinear optical processes can be minimized.Type: GrantFiled: August 22, 2003Date of Patent: January 25, 2005Assignee: University of ChicagoInventors: David G. Grier, Eric R. Dufresne, Jennifer E. Curtis, Brian A. Koss
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Publication number: 20040105158Abstract: An apparatus and method for manipulating small dielectric particles. The apparatus and method involves use of a diffractive optical element which receives a laser beam and forms a plurality of light beams. These light beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating small dielectric particles.Type: ApplicationFiled: September 22, 2003Publication date: June 3, 2004Applicant: ARCH DEVELOPMENT CORPORATIONInventors: David G. GRIER, Eric R. DUFRESNE
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Publication number: 20040036976Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays using light that is in the visible portion of the spectrum. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps. By avoiding wavelengths associated with strong absorption in the underlying material, creating optical traps with a continuous-wave laser, optimizing the efficiency of individual traps, and trapping extended samples at multiple points, the rate of deleterious nonlinear optical processes can be minimized.Type: ApplicationFiled: August 22, 2003Publication date: February 26, 2004Applicant: University of ChicagoInventors: David G. Grier, Eric R. Dufresne, Jennifer E. Curtis, Brian A. Koss
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Publication number: 20040021949Abstract: An apparatus and method for manipulating, effecting interaction of, photochemically transforming and/or sorting small dielectric particles or other materials. The apparatus and method involves use of one or more diffractive optical elements which each receive a laser beam and form a plurality of laser beams. These laser beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating, effecting interaction of, photochemically transforming and/or sorting small dielectric particles or other materials.Type: ApplicationFiled: August 1, 2002Publication date: February 5, 2004Applicant: The University of ChicagoInventors: David G. Grier, Eric R. Dufresne
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Patent number: 6626546Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays using light that is in the visible portion of the spectrum. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps. By avoiding wavelengths associated with strong absorption in the underlying material, creating optical traps with a continuous-wave laser, optimizing the efficiency of individual traps, and trapping extended samples at multiple points, the rate of deleterious nonlinear optical processes can be minimized.Type: GrantFiled: July 1, 2002Date of Patent: September 30, 2003Assignee: University of ChicagoInventors: David G. Grier, Eric R. Dufresne, Jennifer E. Curtis, Brian A. Koss
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Patent number: 6624940Abstract: An apparatus and method for manipulating small dielectric particles. The apparatus and method involves use of a diffractive optical element which receives a laser beam and forms a plurality of light beams. These light beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating small dielectric particles.Type: GrantFiled: January 31, 2000Date of Patent: September 23, 2003Assignee: Arch Development CorporationInventors: David G. Grier, Eric R. Dufresne
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Publication number: 20030086175Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps.Type: ApplicationFiled: December 5, 2002Publication date: May 8, 2003Inventors: David G. Grier, Eric R. Dufresne
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Publication number: 20020181113Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays using light that is in the visible portion of the spectrum. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps. By avoiding wavelengths associated with strong absorption in the underlying material, creating optical traps with a continuous-wave laser, optimizing the efficiency of individual traps, and trapping extended samples at multiple points, the rate of deleterious nonlinear optical processes can be minimized.Type: ApplicationFiled: July 1, 2002Publication date: December 5, 2002Applicant: University of ChicagoInventors: David G. Grier, Eric R. Dufresne, Jennifer E. Curtis, Brian A. Koss
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Patent number: 6416190Abstract: A method and apparatus for control of optical trap arrays and formation of particle arrays using light that is in the visible portion of the spectrum. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps. By avoiding wavelengths associated with strong absorption in the underlying material, creating optical traps with a continuous-wave laser, optimizing the efficiency of individual traps, and trapping extended samples at multiple points, the rate of deleterious nonlinear optical processes can be minimized.Type: GrantFiled: April 27, 2001Date of Patent: July 9, 2002Assignee: University of ChicagoInventors: David G. Grier, Eric R. Dufresne
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Patent number: 6055106Abstract: An apparatus and method for manipulating small dielectric particles. The apparatus and method involves use of a diffractive optical element which receives a laser beam and forms a plurality of light beams. These light beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating small dielectric particles.Type: GrantFiled: February 3, 1998Date of Patent: April 25, 2000Assignee: Arch Development CorporationInventors: David G. Grier, Eric R. Dufresne