Abstract: A power semiconductor die includes a substrate and a drift layer on the substrate. The drift layer includes an active area, an edge termination area surrounding the active area, and a thermal dissipation area surrounding the edge termination area. The thermal dissipation area is configured to reduce a thermal resistance of the power semiconductor die. By providing the thermal dissipation area, the operating voltage and/or current of the power semiconductor die can be increased without an increase in the active area. Further, the manufacturing yield of the power semiconductor die can be improved.

Abstract: Systems and methods for maximizing the breakdown voltage of a semiconductor device are described. In a multiple floating guard ring design, the spacing between two consecutive sets of floating guard rings may increase with their distance from the main junction while maintaining depletion region overlap, thereby alleviating crowding and optimally spreading the electric field leading to a breakdown voltage that is close to the intrinsic material limit. In another exemplary embodiment, fabrication of floating guard rings simultaneously with the formation of another semiconductor feature allows precise positioning of the first floating guard ring with respect to the edge of a main junction, as well as precise control of floating guard ring widths and spacings. In yet another exemplary embodiment, design of the vertical separation between doped regions of a semiconductor device adjusts the device's gate-to-source breakdown voltage without affecting the device's pinch-off voltage.

Abstract: Systems and methods for maximizing the breakdown voltage of a semiconductor device are described. In a multiple floating guard ring design, the spacing between two consecutive sets of floating guard rings may increase with their distance from the main junction while maintaining depletion region overlap, thereby alleviating crowding and optimally spreading the electric field leading to a breakdown voltage that is close to the intrinsic material limit. In another exemplary embodiment, fabrication of floating guard rings simultaneously with the formation of another semiconductor feature allows precise positioning of the first floating guard ring with respect to the edge of a main junction, as well as precise control of floating guard ring widths and spacings. In yet another exemplary embodiment, design of the vertical separation between doped regions of a semiconductor device adjusts the device's gate-to-source breakdown voltage without affecting the device's pinch-off voltage.

Abstract: Systems and methods are provided for an interactive wagering application that restricts wagering access. The restrictions may be based on user-defined restrictions on the location of the user equipment or any other suitable criterion. The interactive wagering application may compare blackout information and user equipment location information. When blackout information and location information match, wagering access may be restricted. An interactive wagering system may verify that the user equipment is in a location where wagering is permitted. If verified, the user equipment may be granted a location verification token. The location verification token may indicate to the interactive wagering application that the user may be provided with wagering access. User-defined wagering restrictions may also be used to restrict wagering access.

Abstract: The present invention is methods and systems for interactive wagering user interfaces. Preferred embodiments of these systems and methods incorporate a wagering data hub which controls the flow of data relating to wagers, wagering events, and wagering account and facilitates the use of a variety of user interfaces such as graphical user interfaces and interactive voice response interfaces. For example, a user of the present invention may use a television set-top box, a computer, a telephone, and/or any other suitable device. To communicate with the wagering data hub, television set-top boxes preferably use a two-way cable system, computers preferably use a computer network, and telephones preferably use a telephone network, although each may use any suitable mechanism or combination of mechanisms to communicate with wagering data hub.

Abstract: A interactive wagering system is provided in which a user at user equipment may place electronic wagers with an interactive wagering application. The wagers may be horse race wagers. The interactive wagering application may handle wagers placed at multiple totalisators. The user may be provided with an opportunity to select a desired totalisator at which to place wagers or the interactive wagering application may automatically apply tote selection criteria to determine which of the multiple totalisators wagers are to be placed with. The user may review information on available odds and other information for each of the different totalisators. Automatic totalisator selection may be based on odds, tax consequences, licensing status, pool values, bulk benefits, user preference, available wager types, or other suitable criteria.