Abstract: A semiconductor cooling arrangement. The semiconductor cooling arrangement comprises one or more semiconductor assemblies, a housing, and one or more baffles. Each assembly comprises a heatsink and one or more semiconductor power devices mounted on and thermally coupled to the heatsink. The housing is for housing the one or more assemblies in a chamber within the housing, and comprises inlet and outlet ports in fluid communication with the chamber. The baffles are arranged such that fluid flows through each baffle to a respective heatsink. Each baffle comprises through-holes arranged such that fluid flows through the through holes to a region of the semiconductor assembly to which a semiconductor power device is mounted, or to a region of the heatsink opposite a location to which a semiconductor power device is mounted.

Abstract: A cooling arrangement, for cooling power devices such as semiconductor power devices, comprises a housing having sidewalls around the periphery of a baseplate, and a capping plate opposing the baseplate. The housing forms a cavity through which cooling fluid may flow between an inlet and an outlet disposed in the housing. Within the cavity is provided one or more baffles that are arranged to force the cooling fluid flowing between the inlet and outlet along a labyrinthine path through the cavity. At least one of the baffles comprises at least one through-hole, which permit cooling fluid to pass there through from one side of the baffle to the other.

Abstract: We describe techniques to reduce DC ripple voltage in an inverter by determining a plurality of switching events for each of the three phases in each Pulse Width Modulation (PWM) period. The switching events provide a desired target output voltage for the respective PWM period. From this determination of the switching events, a comparison can be made to determine a first time period between a first and second switching event across all of the phases, and a second time period between the second and a third switching event across all of the phases. The timing of one or more switching events in only one of the phases in the respective PWM period is adjusted in response to the determined time period being greater than a threshold in order to reduce the determined first or second time period.

Abstract: Various embodiments of cervical plates for treating the spine are provided. The cervical plates include an access surface and a bone facing surface. The cervical plate further includes at least one hole between the access surface and the bone facing surface. The hole includes a trajectory surface that guides an anchor into a corner or edge of a vertebral body, wherein a portion of the hole extends into the disc space region. In some embodiments, the cervical plate includes a ledge to support high angle screw insertion. In some embodiments, an interbody implant is provided. The cervical plate and the interbody spacer can have a corresponding curvature.

Abstract: Various embodiments of cervical plates for treating the spine are provided. The cervical plates include an access surface and a bone facing surface. The cervical plate further includes at least one hole between the access surface and the bone facing surface. The hole includes a trajectory surface that guides an anchor into a corner or edge of a vertebral body, wherein a portion of the hole extends into the disc space region. In some embodiments, the cervical plate includes a ledge to support high angle screw insertion. In some embodiments, an interbody implant is provided. The cervical plate and the interbody spacer can have a corresponding curvature.

Abstract: A semiconductor arrangement and an inverter incorporating the semiconductor arrangement, in particular to an inverter for use with traction power units e.g. for on and off road vehicles and stationary power inversion, are described. In the arrangement, semiconductor devices are thermally and electrically coupled to a heatsink as a module. The heatsink is configured as a bus bar to electrically connect the one or more semiconductor devices together to transmit power between the one or more semiconductor devices. The semiconductor devices may be cooled using the structure to which they are attached, and also immersed in a cooling medium to further increase the cooling of the device.

Abstract: Various burl designs for holding an object in a lithographic apparatus are described. A lithographic apparatus includes an illumination system, a first support structure, a second support structure, and a projection system. The illumination system is designed to receive radiation and to direct the radiation towards a patterning device that forms patterned radiation. The first support structure is designed to support the patterning device on the first support structure. The second support structure has a plurality of burls and is designed to support the substrate on the plurality of burls. A topography of a top surface of each of the plurality of burls is not substantially flat, such that a contact area between the substrate and each of the plurality of burls is reduced. The projection system is designed to receive the patterned radiation and to direct the patterned radiation towards the substrate.

Abstract: A gate driver for a semiconductor power device and a method of driving the gate of a semiconductor power device. The current flowing through the semiconductor power device, caused by a first gate drive voltage during the present switching cycle, is sensed. Based on a second drive signal to be used in the next switching cycle, a second current is determined for that second drive signal, which are then compared to an EMC model. The EMC model defines a plurality of EMC values for respective gate drive voltages and currents conducted through the semiconductor power device. A gate drive voltage adjustment value is selected from a plurality of gate drive voltage adjustment values in the EMC model based on the predicted EMC value generated by the semiconductor power device when being driven using the second drive voltage and conducting the second current. The second gate drive voltage is adjusted using the selected gate drive voltage adjustment value for the next switching cycle.

Abstract: An improved medical pad for contact thermal exchange with a patient includes a fluid circulation layer for containing a thermal exchange fluid circulatable therethrough, a first port and a second port for circulating the thermal exchange fluid in to and out of the fluid circulation layer, and a hydrogel layer interconnected to and extending across one side of the fluid circulation layer to define an adhesive surface for adherence to a patient's skin. The hydrogel layer comprises an ultra violet light-cured composition that includes a cross-linking copolymer in an amount of between about 15% to 30% by weight of the composition, water in an amount of between about 15% to 40% by weight of the composition, and glycerol in an amount of between about 25% to 35% by weight of the composition. The hydrogel layer is provided to have a thermal conductivity of at least about 1.9 cal/hr-cm-° C.

Abstract: A method can include presenting a feed, the feed including at least a first post, a second post, and a third post; receiving a selection gesture in an area corresponding to the first post; in response to receiving the selection gesture, expanding a size of the first post from an original size to an expanded size; receiving a scrolling gesture; and in response to receiving the scrolling gesture, moving the first post, the second post, and the third post in a same direction as the scrolling gesture while maintaining the expanded size of the first post.

Abstract: A method for reducing sticking of an object to a surface used in a lithography process includes receiving, at a control computer, instructions for a tool configured to modify the surface and forming, in a deterministic manner based on the instructions received at the control computer, a modified surface having a furrow and a ridge, wherein the ridge reduces the sticking by reducing a contact surface area of the modified surface. Another apparatus includes a modified surface that includes furrows and ridges forming a reduced contact surface area to reduce a sticking of an object to the modified surface, the ridges having an elastic property that causes the reduced contact surface area to increase when the plurality of ridges is elastically deformed.

Abstract: Various burl designs for holding an object in a lithographic apparatus are described. A lithographic apparatus includes an illumination system, a first support structure, a second support structure, and a projection system. The illumination system is designed to receive radiation and to direct the radiation towards a patterning device that forms patterned radiation. The first support structure is designed to support the patterning device on the first support structure. The second support structure has a plurality of burls and is designed to support the substrate on the plurality of burls. A topography of a top surface of each of the plurality of burls is not substantially flat, such that a contact area between the substrate and each of the plurality of burls is reduced. The projection system is designed to receive the patterned radiation and to direct the patterned radiation towards the substrate.

Abstract: Example systems and methods are described for implementing a swipe-to-like feature. In an example implementation, a list of content items is displayed on a touchscreen display, and based on detecting input of a first gesture, such as, for example, a swipe gesture, for a first one of the content items in the list, associating a predetermined first sentiment with the first content item.

Abstract: A wellbore tool includes a rod with a plurality of rod sections. The rod is configured to be placed within a wellbore casing of a low-pressure hydrocarbon well. A plurality of sealing elements are positioned at a downhole end of the rod. Each sealing element is configured to provide a gas-tight seal between the sealing element and an inner wall of the wellbore casing. A handle positioned at an uphole end of the rod provides a hand grip for a user of the wellbore tool.

Abstract: The present invention relates to a semiconductor cooling arrangement for cooling semiconductor devices, such as power semiconductors. The semiconductor cooling arrangement comprises one or more semiconductor assemblies located in a chamber within a housing. The housing comprises inlet and outlet ports for receiving and outputting a cooling medium. The chamber is flooded with a cooling medium to cool the assemblies. The assemblies themselves each comprise a heatsink and one or more semiconductor power devices thermally coupled to the heatsink. The heatsink comprises heat exchanging elements in the form of a plurality of holes in the heatsink extending through the heatsink from one surface to another surface such that the cooling medium flows through the holes to extract heat from the heatsink.

Abstract: Methods and systems for evaluating the quality of a geospatial data set are provided. Regions of a data set may be selected for review based on statistical methods and a distribution of map features in the data set. Based on errors identified in the selected regions, one or more quality scores may be generated for the data set. Quality scores may be applied toward assessing the utility of the data set against an intended use. Quality scores may be modified in response to an indication that certain feature classes are not relevant for an intended use of the data set. Information associated with the review of a data set may be tracked and stored.

Abstract: Systems and methods are provided for storing and restoring digital data. A method includes receiving, a first user input requesting that a backup interface be displayed, displaying the backup interface, the backup interface including a display area for presenting at least a first visual representation of an earlier version of a current view and a visual representation of the current view, the earlier version including a first element, receiving, while the backup interface is displayed, a second user input requesting that the current view be modified according to the earlier version, at least with regard to the first element, animating the modification of the first element as moving from the visual representation of the earlier version to the visual representation of the current view, and modifying, in response to the second user input, the current view according to the earlier version, at least with regard to the first element.

Abstract: A communication system includes master host unit, hybrid expansion unit, and remote antenna unit. Master host unit communicates analog signals with service provider interfaces. Master host unit and hybrid expansion unit communicate N-bit words of digitized spectrum over communication link. Hybrid expansion unit converts between N-bit words and analog spectrum. Hybrid expansion unit and remote antenna unit communicate analog spectrum over analog communication medium. Remote antenna unit transmits and receives wireless signals over air interfaces. Master host unit includes master clock distribution unit that generates digital master reference clock signal. Master host unit communicates digital master reference clock signal over communication link. Hybrid expansion unit receives digital master reference clock signal from master host unit over communication link and generates analog reference clock signal based on digital master reference clock signal.

Abstract: A communication system includes master host unit, hybrid expansion unit, and remote antenna unit. Master host unit communicates analog signals with service provider interfaces. Master host unit and hybrid expansion unit communicate N-bit words of digitized spectrum over communication link. Hybrid expansion unit converts between N-bit words and analog spectrum. Hybrid expansion unit and remote antenna unit communicate analog spectrum over analog communication medium. Remote antenna unit transmits and receives wireless signals over air interfaces. Master host unit includes master clock distribution unit that generates digital master reference clock signal. Master host unit communicates digital master reference clock signal over communication link. Hybrid expansion unit receives digital master reference clock signal from master host unit over communication link and generates analog reference clock signal based on digital master reference clock signal.