Abstract: A system includes an imaging system, a spatial filter, and a detector. The system is configured to receive a plurality of diffraction orders. The spatial filter is configured to block one or more undesired diffraction orders of the plurality of diffraction orders and to pass one or more desired diffraction orders of the plurality of diffraction orders. The spatial filter includes one or more obscurations having an angular dependent radius that varies azimuthally. The detector is configured to receive and measure an intensity of the one or more desired diffraction orders. The spatial filter is motorized.

Abstract: A bonusing system for gaming devices provides a first bonus award eligible to be won via participating gaming devices. The bonusing system is configured to: register a plurality of electronic gaming machines (EGMs) and a plurality of table gaming devices to participate in the first bonus award; receive, from a first electronic gaming machine (EGM), a first wager event message indicating a first wager being performed by a first player at the first EGM; receive, from a first table gaming device, a second wager event message indicating a second wager being performed by a second player at the first table gaming device; determine that one of the first and second wager events results in an award of the first bonus award based on a random output; and award the first bonus award to the winning player at the winning gaming device based on the determination.

Abstract: Generating an alignment signal for alignment of features in a layer of a substrate as part of a semiconductor manufacturing process is described. The present systems and methods can be faster and/or generate more information than typical methods for generating alignment signals because they utilize one or more existing structures in a patterned semiconductor wafer instead of a dedicated alignment structure. A feature (not a dedicated alignment mark) of the patterned semiconductor wafer is continuously scanned, where the scanning includes: continuously irradiating the feature with radiation; and continuously detecting reflected radiation from the feature. The scanning is performed perpendicular to the feature, along one side of the feature, or along both sides of the feature.

Abstract: A product display stand for reducing displayed product movement can be used in a retail environment to reduce movement of a product displayed by the product display stand. Such product display stand includes a damping assembly configured to attach to a display platform. The damping assembly includes a housing configured to attach to the display platform. The housing defines a damping chamber. The assembly also includes within the chamber a damping flange and damping material. The product display stand also includes a display post fixed to the damping flange. The display post extends above the display platform and to retain and display a product.

Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.

Abstract: A reciprocating saw includes a housing, a motor, and a drive mechanism. The motor includes an output gear rotatable about a motor axis. The drive mechanism includes a driven gear that engages the output gear and is rotated by the motor. The driven gear has a circumference and is vertically-oriented within the housing. The drive mechanism also includes an output shaft coupled to the driven gear and configured to reciprocate relative to the housing. The drive mechanism further includes a single counterweight fixed relative to the driven gear and rotating with the driven gear through a path and in a same direction. As the counterweight moves through a rearward half of the path, the counterweight generally moves in an upward direction, and as the counterweight moves through a forward half of the path, the counterweight generally moves in a downward direction.

Abstract: Systems, apparatuses, and methods are provided for correcting the detected positions of alignment marks disposed on a substrate and aligning the substrate using the corrected data to accurately expose patterns on the substrate. An example method can include receiving a measurement signal including a combined intensity signal corresponding to first and second diffracted light beams diffracted from first and second alignment targets having different orientations. The example method can further include fitting the combined intensity signal using templates to determine weight values and determining, based on the templates and weight values, first and second intensity sub-signals corresponding to the first and second diffracted light beams. The method can further include determining first and second intensity imbalance signals based on the first and second intensity sub-signals and determining a set of corrections to the measurement signal based on the first and second intensity imbalance signals.

Abstract: A reciprocating saw includes a housing, a motor, and a drive mechanism. The motor includes an output gear rotatable about a motor axis. The drive mechanism includes a driven gear that engages the output gear and is rotated by the motor. The driven gear has a circumference and is vertically-oriented within the housing. The drive mechanism also includes an output shaft coupled to the driven gear and configured to reciprocate relative to the housing. The drive mechanism further includes a single counterweight fixed relative to the driven gear and rotating with the driven gear through a path and in a same direction. As the counterweight moves through a rearward half of the path, the counterweight generally moves in an upward direction, and as the counterweight moves through a forward half of the path, the counterweight generally moves in a downward direction.

Abstract: Systems, apparatuses, and methods are provided for correcting the detected positions of alignment marks disposed on a substrate and aligning the substrate using the corrected data to ensure accurate exposure of one or more patterns on the substrate. An example method can include receiving measurement data indicative of an interference between light diffracted from a plurality of alignment marks disposed on a substrate or reflected from the substrate. The example method can further include determining substrate deformation data based on the measurement data. The example method can further include determining alignment mark deformation data based on the measurement data. The alignment mark deformation data can include alignment mark deformation spectral pattern data, alignment mark deformation amplitude data, and alignment mark deformation offset data.

Abstract: An alignment method includes directing an illumination beam with a first polarization state to form a diffracted beam with a second polarization state from an alignment target, and passing the diffracted beam through a polarization analyzer. The alignment method further includes measuring a polarization state of the diffracted beam and determining a location of the alignment target from the measured polarization state relative to its initial polarization state. The alignment target includes a plurality of diffraction gratings with a single pitch and two or more duty cycles, wherein the pitch is smaller than a wavelength of the illumination beam, and the location of the alignment target corresponds to the duty cycle of the diffraction grating.

Abstract: Systems disclosed herein are directed to a display stand unit for a retail environment. The display stand unit includes a base having an interior and a display stand. The display stand includes a stem that connects to and extends upwardly from the base and a receiving surface that is suspended above and spaced away from the base by the stem. The receiving surface is configured to releasably hold an electronic device above and spaced away from the base. The display stand unit further includes a security cable that extends out from the base. The security cable is configured to attach to the electronic device to movably secure the electronic device to the base. The display stand unit further includes a retractor disposed within the interior of the base and connected to the security cable. The retractor automatically retracts the security cable.

Abstract: An apparatus for determining a condition associated with a pellicle for use in a lithographic apparatus, the apparatus including a sensor, wherein the sensor is configured to measure a property associated with the pellicle, the property being indicative of the pellicle condition.

Abstract: Apparatus and methods for endodontic treatment of teeth provide effective cleaning of organic material (such as pulp and diseased tissue) from the root canal system. In an embodiment, a compressor system generates high pressure liquid (e.g., water) that flows through an orifice to produce a high-velocity collimated jet of liquid. The high-velocity jet is directed toward a surface of a tooth, for example, an exposed dentinal surface, and impingement of the jet onto the surface generates an acoustic wave that propagates throughout the tooth. The acoustic wave effectively detaches organic material from dentinal surfaces and tubules. The detached organic material is flushed from the root canal system by the liquid jet and/or by additional irrigation.

Abstract: An apparatus for determining a condition associated with a pellicle for use in a lithographic apparatus, the apparatus including a sensor, wherein the sensor is configured to measure a property associated with the pellicle, the property being indicative of the pellicle condition.

Abstract: An engine parameter estimation tuning system includes an engine parameter estimator unit and a gas path analysis (GPA) unit. The engine parameter estimator unit includes an onboard model (OBM) configured to output estimated parameters based on operation of a gas turbine engine. The gas path analysis (GPA) unit includes a performance health monitor unit configured to adjust a long-term deterioration parameter independently from adjustment of a short-term tuning parameter to tune one or more targeted estimation parameters included in the estimated engine parameter. In this manner, the engine parameter estimation tuning system can realize the different time scales associated with uncertainties in an engine and accommodate them separately so that the estimated engine parameters become much more accurate.

Abstract: A product display stand for reducing displayed product movement can be used in a retail environment to reduce movement of a product displayed by the product display stand. Such product display stand includes a damping assembly configured to attach to a display platform. The damping assembly includes a housing configured to attach to the display platform. The housing defines a damping chamber. The assembly also includes within the chamber a damping flange and damping material. The product display stand also includes a display post fixed to the damping flange. The display post extends above the display platform and to retain and display a product.

Abstract: A system (500) includes an illumination system (502), a lens element (506), and a detector (504). The illumination system generates a beam of radiation (510) having a first spatial intensity distribution (800) at a pupil plane (528) and a second spatial intensity distribution (900) at a plane of a target (514). The first spatial intensity distribution comprises an annular intensity profile (802) or an intensity profile corresponding to three or more beams. The lens element focuses the beam onto the target. The second spatial intensity distribution is a conjugate of the first intensity distribution and has an intensity profile corresponding to a central beam (902) and one or more side lobes (904) that are substantially isolated from the central beam. The central beam has a beam diameter of approximately 20 microns or less at the target. The detector receives radiation scattered by the target and generates a measurement signal based on the received radiation.

Abstract: A bonusing system for gaming devices provides a bonus award eligible to be won via participating gaming devices. A messaging application programming interface (API) receives wagering event messages in a first message format from third-party servers. A message queue receives wagering event messages from the messaging API in a second message format. A bonusing system server manages award determination for the bonus award.

Abstract: A reciprocating saw includes a housing, a motor, and a drive mechanism. The motor includes an output gear rotatable about a motor axis. The drive mechanism includes a driven gear that engages the output gear and is rotated by the motor. The driven gear has a circumference and is vertically-oriented within the housing. The drive mechanism also includes an output shaft coupled to the driven gear and configured to reciprocate relative to the housing. The drive mechanism further includes a single counterweight fixed relative to the driven gear and rotating with the driven gear through a path and in a same direction. As the counterweight moves through a rearward half of the path, the counterweight generally moves in an upward direction, and as the counterweight moves through a forward half of the path, the counterweight generally moves in a downward direction.

Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.