Patents by Inventor Mark D. Smith
Mark D. Smith 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: 20220187718Abstract: A wafer shape metrology system includes a wafer shape metrology sub-system configured to perform one or more stress-free shape measurements on a first wafer, a second wafer, and a post-bonding pair of the first and second wafers. The wafer shape metrology system includes a controller communicatively coupled to the wafer shape metrology sub-system. The controller is configured to receive stress-free shape measurements from the wafer shape sub-system; predict overlay between one or more features on the first wafer and the second wafer based on the stress-free shape measurements of the first wafer, the second wafer, and the post-bonding pair of the first wafer and the second wafer; and provide a feedback adjustment to one or more process tools based on the predicted overlay. Additionally, feedforward and feedback adjustments may be provided to one or more process tools.Type: ApplicationFiled: January 28, 2021Publication date: June 16, 2022Applicant: KLA CorporationInventors: Franz Zach, Mark D. Smith, Xiaomeng Shen, Jason Saito, David Owen
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Patent number: 11221561Abstract: An overlay control system is disclosed. In embodiments, the system may include a controller configured to: acquire a set of feedback overlay measurements based on a plan of record (POR) sampling map on a second layer of samples of at least one previous lot of samples; generate a reference wafer overlay map based on the set of feedback overlay measurements; acquire a set of feedforward overlay measurements based on a feedforward sampling map on a first layer of a set of samples of a current lot of samples; generate a set of artificial overlay vector maps for the set of samples of the current lot of samples based on the set of feedforward overlay measurements; and cause a lithography tool to fabricate a second layer of samples of the current lot of samples based on the reference wafer overlay map and the set of artificial overlay vector maps.Type: GrantFiled: January 14, 2020Date of Patent: January 11, 2022Assignee: KLA CorporationInventors: Onur Nihat Demirer, Fatima Anis, Mark D. Smith
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Publication number: 20220005714Abstract: A controller is configured to perform at least a first characterization process prior to at least one discrete backside film deposition process on a semiconductor wafer; perform at least an additional characterization process following the at least one discrete backside film deposition process; determine at least one of a film force or one or more in-plane displacements for at least one discrete backside film deposited on the semiconductor wafer via the at least one discrete backside film deposition process based on the at least the first characterization process and the at least the additional characterization process; and provide at least one of the film force or the one or more in-plane displacements to at least one process tool via at least one of a feed forward loop or a feedback loop to improve performance of one or more fabrication processes.Type: ApplicationFiled: September 20, 2021Publication date: January 6, 2022Inventors: Pradeep Vukkadala, Mark D. Smith, Ady Levy, Prasanna Dighe, Dieter Mueller
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Patent number: 11164768Abstract: A controller is configured to perform at least a first characterization process prior to at least one discrete backside film deposition process on a semiconductor wafer; perform at least an additional characterization process following the at least one discrete backside film deposition process; determine at least one of a film force or one or more in-plane displacements for at least one discrete backside film deposited on the semiconductor wafer via the at least one discrete backside film deposition process based on the at least the first characterization process and the at least the additional characterization process; and provide at least one of the film force or the one or more in-plane displacements to at least one process tool via at least one of a feed forward loop or a feedback loop to improve performance of one or more fabrication processes.Type: GrantFiled: June 26, 2018Date of Patent: November 2, 2021Assignee: KLA CorporationInventors: Pradeep Vukkadala, Mark D. Smith, Ady Levy, Prasanna Dighe, Dieter Mueller
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Publication number: 20210216021Abstract: An overlay control system is disclosed. In embodiments, the system may include a controller configured to: acquire a set of feedback overlay measurements based on a plan of record (POR) sampling map on a second layer of samples of at least one previous lot of samples; generate a reference wafer overlay map based on the set of feedback overlay measurements; acquire a set of feedforward overlay measurements based on a feedforward sampling map on a first layer of a set of samples of a current lot of samples; generate a set of artificial overlay vector maps for the set of samples of the current lot of samples based on the set of feedforward overlay measurements; and cause a lithography tool to fabricate a second layer of samples of the current lot of samples based on the reference wafer overlay map and the set of artificial overlay vector maps.Type: ApplicationFiled: January 14, 2020Publication date: July 15, 2021Inventors: Onur Nihat Demirer, Fatima Anis, Mark D. Smith
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Patent number: 10685165Abstract: Metrology methods are provided, which comprise identifying overlay critical patterns in a device design, the overlay critical patterns having an overlay sensitivity to process variation above a specified threshold that depends on design specifications; and using metrology targets that correspond to the identified overlay critical patterns. Alternatively or complementarily, metrology methods comprise identifying yield critical patterns according to a corresponding process window narrowing due to specified process variation, wherein the narrowing is defined by a dependency of edge placement errors (EPEs) of the patterns on process parameters. Corresponding targets and measurements are provided.Type: GrantFiled: March 28, 2016Date of Patent: June 16, 2020Assignee: KLA-Tencor CorporationInventors: Daniel Kandel, Mark D. Smith, Mark Wagner, Eran Amit, Myungjun Lee
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Patent number: 10579768Abstract: Metrology targets and target design methods are provided, in which target elements are defined by replacing elements from a periodic pattern having a pitch p, by assist elements having at least one geometric difference from the replaced elements, to form a composite periodic structure that maintains the pitch p as a single pitch. Constructing targets within the bounds of compatibility with advanced multiple patterning techniques improves the fidelity of the targets and fill factor modulation enables adjustment of the targets to produce sufficient metrology sensitivity for extracting the overlay while achieving process compatibility of the targets.Type: GrantFiled: November 4, 2016Date of Patent: March 3, 2020Assignee: KLA-Tencor CorporationInventors: Vladimir Levinski, Eitan Hajaj, Tal Itzkovich, Sharon Aharon, Michael E. Adel, Yuri Paskover, Daria Negri, Yuval Lubashevsky, Amnon Manassen, Myungjun Lee, Mark D. Smith
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Patent number: 10496781Abstract: A metrology system includes a controller communicatively coupled to a metrology tool. The controller may generate a three-dimensional model of a sample, generate a predicted metrology image corresponding to a predicted analysis of the sample with the metrology tool based on the three-dimensional model, evaluate two or more candidate metrology recipes for extracting the metrology measurement from the one or more predicted metrology images, select, based on one or more selection metrics, a metrology recipe from the two or more candidate metrology recipes for extracting a metrology measurement from an image of the structure from the metrology tool, receive an output metrology image of a fabricated structure from the metrology tool based on a metrology measurement of the fabricated structure, and extract the metrology measurement associated with the fabricated structure from the output metrology image based on the metrology recipe.Type: GrantFiled: November 13, 2017Date of Patent: December 3, 2019Assignee: KLA Tencor CorporationInventors: Chao Fang, Mark D. Smith, Brian Duffy
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Patent number: 10475712Abstract: A system is disclosed. The system includes a tool cluster. The tool cluster includes a first deposition tool configured to deposit a first layer on a wafer. The tool cluster additionally includes an interferometer tool configured to obtain one or more measurements of the wafer. The tool cluster additionally includes a second deposition tool configured to deposit a second layer on the wafer. The tool cluster additionally includes a vacuum assembly. One or more correctables configured to adjust at least one of the first deposition tool or the second deposition tool are determined based on the one or more measurements. The one or more measurements are obtained between the deposition of the first layer and the deposition of the second layer without breaking the vacuum generated by the vacuum assembly.Type: GrantFiled: September 18, 2017Date of Patent: November 12, 2019Assignee: KLA-Tencor CorporationInventors: Ady Levy, Mark D. Smith
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Publication number: 20190333794Abstract: A controller is configured to perform at least a first characterization process prior to at least one discrete backside film deposition process on a semiconductor wafer; perform at least an additional characterization process following the at least one discrete backside film deposition process; determine at least one of a film force or one or more in-plane displacements for at least one discrete backside film deposited on the semiconductor wafer via the at least one discrete backside film deposition process based on the at least the first characterization process and the at least the additional characterization process; and provide at least one of the film force or the one or more in-plane displacements to at least one process tool via at least one of a feed forward loop or a feedback loop to improve performance of one or more fabrication processes.Type: ApplicationFiled: June 26, 2018Publication date: October 31, 2019Inventors: Pradeep Vukkadala, Mark D. Smith, Ady Levy, Prasanna Dighe, Dieter Mueller
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Patent number: 10444639Abstract: A process control system includes a controller configured to generate a reference overlay signature based on one or more overlay reference layers of a sample, extrapolate the reference overlay signature to a set of correctable fields for the exposure of a current layer of the sample to generate a full-field reference overlay signature, identify one or more alignment fields of the set of correctable fields, generate an alignment-correctable signature by modeling alignment corrections for the set of correctable fields, subtract the alignment-correctable signature from the full-field reference overlay signature to generate feedforward overlay corrections for the current layer when the one or more overlay reference layers are the same as the one or more alignment reference layers, generate lithography tool corrections based on the feedforward overlay corrections, and provide the lithography tool corrections for the current layer to the lithography tool.Type: GrantFiled: December 15, 2017Date of Patent: October 15, 2019Assignee: KLA-Tencor CorporationInventors: Onur Nihat Demirer, William Pierson, Mark D. Smith, Jeremy S. Nabeth, Miguel Garcia-Medina, Lipkong Yap
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Patent number: 10340165Abstract: A semiconductor tool includes an illumination source to generate an illumination beam, one or more illumination optical elements to direct a portion of the illumination beam to a sample, a detector, one or more collection optical elements to direct radiation emanating from the sample to the detector, and a controller communicatively coupled to the detector. The controller is configured to measure alignment at a plurality of locations across the sample to generate alignment data, select an analysis area for alignment zone determination, divide the analysis area into two or more alignment zones having different alignment signatures; model the alignment data of at least a first alignment zone of the two or more alignment zones using a first alignment model, and model the alignment data of at least a second alignment zone of the two or more alignment zones using a second alignment model different than the first alignment model.Type: GrantFiled: March 6, 2017Date of Patent: July 2, 2019Assignee: KLA-Tencor CorporationInventors: Jeremy Nabeth, Onur N. Demirer, Ramkumar Karur-Shanmugam, Choon (George) Hoong Hoo, Christian Sparka, Hoyoung Heo, Stuart Sherwin, Fatima Anis, Mark D. Smith, William Pierson
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Publication number: 20190108314Abstract: Embodiments include methods, systems, and computer program products for determining health care vital data. Aspects include receiving a health care vital measurement for a patient and health care vital data for a population. Aspects also include determining a baseline for the patient based at least in part upon the health care vital data for the population. Aspects include determining whether the patient health care vital data deviates from the baseline by more than a threshold and, applying a cognitive learning model to the patient health care vital measurement to correct for an anxiety-based impact to generate a corrected health care vital measurement responsive to a determination that the patient health care vital data deviates from the baseline by more than the threshold.Type: ApplicationFiled: October 10, 2017Publication date: April 11, 2019Inventors: Kyle R. MOSER, Mark D. SMITH, Andrew P. WACK, Maria R. WARD
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Publication number: 20190108451Abstract: Embodiments include methods, systems, and computer program products for determining health care vital data. Aspects include receiving a health care vital measurement for a patient and health care vital data for a population. Aspects also include determining a baseline for the patient based at least in part upon the health care vital data for the population. Aspects include determining whether the patient health care vital data deviates from the baseline by more than a threshold and, applying a cognitive learning model to the patient health care vital measurement to correct for an anxiety-based impact to generate a corrected health care vital measurement responsive to a determination that the patient health care vital data deviates from the baseline by more than the threshold.Type: ApplicationFiled: November 1, 2017Publication date: April 11, 2019Inventors: Kyle R. MOSER, Mark D. SMITH, Andrew P. WACK, Maria R. WARD
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Patent number: 10216096Abstract: A lithography system includes an illumination source and a set of projection optics. The illumination source directs a beam of illumination from an off-axis illumination pole to a pattern mask. The pattern mask includes a set of pattern elements to generate a set of diffracted beams including illumination from the illumination pole. At least two diffracted beams of the set of diffracted beams received by the set of projection optics are asymmetrically distributed in a pupil plane of the set of projection optics. The at least two diffracted beams of the set of diffracted beams are asymmetrically incident on the sample to form a set of fabricated elements corresponding to an image of the set of pattern elements. The set of fabricated elements on the sample includes one or more indicators of a location of the sample along an optical axis of the set of projection optics.Type: GrantFiled: June 6, 2016Date of Patent: February 26, 2019Assignee: KLA-Tencor CorporationInventors: Myungjun Lee, Mark D. Smith, Sanjay Kapasi, Stilian Pandev, Dzmitry Sanko, Pradeep Subrahmanyan, Ady Levy
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Patent number: 10209627Abstract: A lithography system includes an illumination source, projection optical elements, and a pattern mask. The illumination source includes one or more illumination poles. The pattern mask includes a set of focus-sensitive mask elements distributed with a pitch and, is configured to diffract illumination from the one or more illumination poles. The pitch may be selected such that two diffraction orders of illumination associated with each of the one or more illumination poles are asymmetrically distributed in a pupil plane of the projection optical elements. Further, the projection optical elements may expose a sample with an image of the set of focus-sensitive pattern mask elements based on the two diffraction orders of illumination associated with each of the one or more illumination poles such that one or more printing characteristics is indicative of a position of the sample within a focal volume of the projection optical elements.Type: GrantFiled: January 24, 2017Date of Patent: February 19, 2019Assignee: KLA-Tencor CorporationInventors: Myungjun Lee, Stewart Robertson, Mark D. Smith, Pradeep Subrahmanyan
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Patent number: 10134024Abstract: A card actuated automated banking machine (152, 198, 200) includes a plurality of transaction function devices. The transaction function devices include a card reader (170), a printer (174), a bill dispenser (176), a display (182), a check imaging device (186), and at least one processor (190). The machine is operative, responsive to receiving a check and certification data, to dispense cash in exchange for the check. The person presenting the check to the machine need not provide user identifying inputs through input devices of the machine in order to receive cash for the check. Furthermore, prior to accepting the check as a payment, the person can communicate with at least one computer (204) through at least one consumer interface device (208) to verify that the check is payable for the check amount.Type: GrantFiled: October 20, 2017Date of Patent: November 20, 2018Assignee: Diebold Nixdorf, IncorporatedInventors: Mark D. Smith, David E. Kolinski-Schultz, Dale H. Blackson, Natarajan Ramachandran
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Publication number: 20180308390Abstract: Embodiments describing an approach to creating, a user profile and linking, a mobile device to one or more mobile fitness devices. Continuously collecting, user fitness data from the one of more mobile fitness devices, and continuously collecting user data. Analyzing, the user fitness data and the user data, and Responsive to the user fitness data and user data analysis, generating a personalized nutrition plan based on the optimum parameters.Type: ApplicationFiled: December 19, 2017Publication date: October 25, 2018Inventors: Kyle R. Moser, Mark D. Smith, Andrew P. Wack, Maria R. Ward
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Publication number: 20180308389Abstract: Embodiments describing an approach to creating, a user profile and linking, a mobile device to one or more mobile fitness devices. Continuously collecting, user fitness data from the one of more mobile fitness devices, and continuously collecting user data. Analyzing, the user fitness data and the user data, and Responsive to the user fitness data and user data analysis, generating a personalized nutrition plan based on the optimum parameters.Type: ApplicationFiled: April 21, 2017Publication date: October 25, 2018Inventors: Kyle R. Moser, Mark D. Smith, Andrew P. Wack, Maria R. Ward
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Patent number: 10095122Abstract: A lithography system includes an illumination source, a pattern mask, and an optical element configured to expose a sample with an image of the pattern mask for the fabrication of one or more printed device structures and one or more metrology target structures. The pattern mask includes a device pattern mask area and a metrology target pattern mask area. The device pattern mask area includes a set of device pattern elements distributed with a device pitch. The metrology target pattern mask area includes a set of metrology target pattern elements. The one or more printed metrology target structures include a set of metrology target elements distributed with a metrology target pitch. Regions of the metrology target pattern mask area include sub-resolution features having widths smaller than the resolution of the optical element such that the sub-resolution pattern elements are not included on the one or more printed metrology target structures.Type: GrantFiled: October 10, 2016Date of Patent: October 9, 2018Assignee: KLA-Tencor CorporationInventors: Myungjun Lee, Mark D. Smith