Patents by Inventor Thomas Cecil
Thomas Cecil 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: 11822232Abstract: A method comprises receiving an integrated circuit (IC) design file and determining, by one or more processors, dose information from the IC design file. The method further comprises determining, by the one or more processors, a mask vector file from the IC design file, and converting, by the one or more processors, the dose information to a vector file format. Further, the method comprises outputting the dose information in the vector file format and the mask vector file to a mask writer device.Type: GrantFiled: July 23, 2021Date of Patent: November 21, 2023Assignee: Synopsys, Inc.Inventor: Thomas Cecil
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Patent number: 11720015Abstract: Aspects described herein relate to mask synthesis using design guided offsets. A target shape on an image surface to be fabricated using a mask based on a design of an integrated circuit is obtained. Rays are generated emanating from respective anchor points. The anchor points are on a boundary of the target shape or a boundary of a mask shape of the mask. For each ray of the rays, a distance is defined between a first intersection of the respective ray and the boundary of the target shape and a second intersection of the respective ray and the boundary of the mask shape. An analysis is performed by one or more processors, where the analysis is configured to modify the distances based on an error between the target shape and a resulting shape simulated to be on the image surface resulting from the mask shape.Type: GrantFiled: June 25, 2021Date of Patent: August 8, 2023Assignee: Synopsys, Inc.Inventors: Thomas Cecil, Kevin Hooker
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Patent number: 11657207Abstract: A method comprises receiving an integrated circuit (IC) chip design, and generating, by one or more processors, a wafer image and a wafer target from the IC chip design. The method further comprises generating, by the one or more processors, sensitivity information based on a determination that the wafer image and the wafer target converge, and outputting the sensitivity information. The sensitivity information is associated with writing a mask written for the IC chip design.Type: GrantFiled: July 16, 2021Date of Patent: May 23, 2023Assignee: Synopsys, Inc.Inventor: Thomas Cecil
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Patent number: 11651135Abstract: A method comprises receiving an integrated circuit (IC) chip design, and generating, by one or more processors and based on the IC chip design, dose information, a wafer image, and a wafer target. Further, the method comprises modifying, by the one or more processors, the dose information based on a comparison of the wafer image and the wafer target. Further, the method comprises outputting the modified dose information to a mask writing device.Type: GrantFiled: July 23, 2021Date of Patent: May 16, 2023Assignee: Synopsys, Inc.Inventor: Thomas Cecil
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Patent number: 11644747Abstract: Aspects described herein relate to obtaining a mask pattern using a cost function gradient (CFG) generated from a Jacobian matrix generated from a perturbation look-up table (PLT). In an example method, a PLT is populated (108). Each table entry of the PLT is based on a respective perturbed intensity signal. The respective perturbed intensity signal is based on a simulated signal received at an image surface using a mask pattern having a perturbed element of the mask pattern. The mask pattern is for a design of an integrated circuit. A matrix is populated (110) using the PLT and a target intensity signal. The target intensity signal is based on a signal received at the image surface to form target features at the image surface. A CFG is defined (112) based on the matrix. An analysis is performed (114) on the mask pattern based on the CFG.Type: GrantFiled: June 4, 2021Date of Patent: May 9, 2023Assignee: Synopsys, Inc.Inventor: Thomas Cecil
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Patent number: 11449659Abstract: An example is a method. An electronic representation of a design of an integrated circuit to be manufactured on a semiconductor die is obtained. The design of the integrated circuit includes layers. The electronic representation includes initial polygons. Polygon topological skeletons of the initial polygons of the target layer are generated. A space topological skeleton in a space between the polygon topological skeletons is generated. A connected network comprising network edges is generated. Each network edge is connected between a respective polygon topological skeleton and the space topological skeleton. A transformation of the polygon topological skeletons is performed, by one or more processors, based on the network edges, a spacing specification for a spacing between polygons, and respective specified widths associated with the initial polygons by perturbing the polygon topological skeletons.Type: GrantFiled: May 6, 2020Date of Patent: September 20, 2022Assignee: Synopsys, Inc.Inventor: Thomas Cecil
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Publication number: 20220035241Abstract: A method comprises receiving an integrated circuit (IC) design file and determining, by one or more processors, dose information from the IC design file. The method further comprises determining, by the one or more processors, a mask vector file from the IC design file, and converting, by the one or more processors, the dose information to a vector file format. Further, the method comprises outputting the dose information in the vector file format and the mask vector file to a mask writer device.Type: ApplicationFiled: July 23, 2021Publication date: February 3, 2022Inventor: Thomas CECIL
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Publication number: 20220035240Abstract: A method comprises receiving an integrated circuit (IC) chip design, and generating, by one or more processors, a wafer image and a wafer target from the IC chip design. The method further comprises generating, by the one or more processors, sensitivity information based on a determination that the wafer image and the wafer target converge, and outputting the sensitivity information. The sensitivity information is associated with writing a mask written for the IC chip design.Type: ApplicationFiled: July 16, 2021Publication date: February 3, 2022Inventor: Thomas CECIL
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Publication number: 20220035242Abstract: A method comprises receiving an integrated circuit (IC) chip design, and generating, by one or more processors and based on the IC chip design, dose information, a wafer image, and a wafer target. Further, the method comprises modifying, by the one or more processors, the dose information based on a comparison of the wafer image and the wafer target. Further, the method comprises outputting the modified dose information to a mask writing device.Type: ApplicationFiled: July 23, 2021Publication date: February 3, 2022Inventor: Thomas CECIL
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Publication number: 20210405522Abstract: Aspects described herein relate to mask synthesis using design guided offsets. A target shape on an image surface to be fabricated using a mask based on a design of an integrated circuit is obtained. Rays are generated emanating from respective anchor points. The anchor points are on a boundary of the target shape or a boundary of a mask shape of the mask. For each ray of the rays, a distance is defined between a first intersection of the respective ray and the boundary of the target shape and a second intersection of the respective ray and the boundary of the mask shape. An analysis is performed by one or more processors, where the analysis is configured to modify the distances based on an error between the target shape and a resulting shape simulated to be on the image surface resulting from the mask shape.Type: ApplicationFiled: June 25, 2021Publication date: December 30, 2021Inventors: Thomas CECIL, Kevin HOOKER
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Publication number: 20210294207Abstract: Aspects described herein relate to obtaining a mask pattern using a cost function gradient (CFG) generated from a Jacobian matrix generated from a perturbation look-up table (PLT). In an example method, a PLT is populated (108). Each table entry of the PLT is based on a respective perturbed intensity signal. The respective perturbed intensity signal is based on a simulated signal received at an image surface using a mask pattern having a perturbed element of the mask pattern. The mask pattern is for a design of an integrated circuit. A matrix is populated (110) using the PLT and a target intensity signal. The target intensity signal is based on a signal received at the image surface to form target features at the image surface. A CFG is defined (112) based on the matrix. An analysis is performed (114) on the mask pattern based on the CFG.Type: ApplicationFiled: June 4, 2021Publication date: September 23, 2021Inventor: Thomas CECIL
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Patent number: 11061321Abstract: Aspects described herein relate to obtaining a mask pattern using a cost function gradient (CFG) generated from a Jacobian matrix generated from a perturbation look-up table (PLT). In an example method, a PLT is populated (108). Each table entry of the PLT is based on a respective perturbed intensity signal. The respective perturbed intensity signal is based on a simulated signal received at an image surface using a mask pattern having a perturbed element of the mask pattern. The mask pattern is for a design of an integrated circuit. A matrix is populated (110) using the PLT and a target intensity signal. The target intensity signal is based on a signal received at the image surface to form target features at the image surface. A CFG is defined (112) based on the matrix. An analysis is performed (114) on the mask pattern based on the CFG.Type: GrantFiled: June 12, 2020Date of Patent: July 13, 2021Assignee: Synopsys, Inc.Inventor: Thomas Cecil
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Publication number: 20200379344Abstract: An example is a method. An electronic representation of a design of an integrated circuit to be manufactured on a semiconductor die is obtained. The design of the integrated circuit includes layers. The electronic representation includes initial polygons. Polygon topological skeletons of the initial polygons of the target layer are generated. A space topological skeleton in a space between the polygon topological skeletons is generated. A connected network comprising network edges is generated. Each network edge is connected between a respective polygon topological skeleton and the space topological skeleton. A transformation of the polygon topological skeletons is performed, by one or more processors, based on the network edges, a spacing specification for a spacing between polygons, and respective specified widths associated with the initial polygons by perturbing the polygon topological skeletons.Type: ApplicationFiled: May 6, 2020Publication date: December 3, 2020Inventor: Thomas CECIL
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Patent number: 9523777Abstract: A microcalorimeter for radiation detection that uses superconducting kinetic inductance resonators as the thermometers. The detector is frequency-multiplexed which enables detector systems with a large number of pixels.Type: GrantFiled: April 10, 2014Date of Patent: December 20, 2016Assignee: UChicago Argonne, LLCInventors: Thomas Cecil, Lisa Gades, Antonio Miceli, Orlando Quaranta
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Publication number: 20150293236Abstract: A microcalorimeter for radiation detection that uses superconducting kinetic inductance resonators as the thermometers. The detector is frequency-multiplexed which enables detector systems with a large number of pixels.Type: ApplicationFiled: April 10, 2014Publication date: October 15, 2015Applicant: UChicago Argonne, LLCInventors: Thomas Cecil, Lisa Gades, Antonio Miceli, Orlando Quaranta
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Publication number: 20060180420Abstract: A particle vibration damper includes a container which locates a plurality of steel particles. A copper winding is provided around the container to induce a magnetic field therein to increase the inter-particle pressure. By adjusting the voltage across the winding the amplitude of peak damping ability can be varied to match the vibration amplitude being damped.Type: ApplicationFiled: April 13, 2006Publication date: August 17, 2006Inventors: Jem Rongong, Thomas Cecil, David Webster