Papers by Author: Raul Land

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Authors: Oleg Korolkov, Raul Land, Jana Toompuu, Natalja Sleptsuk, Toomas Rang
Abstract: In the present work, the prototype of a voltage multiplier represented as the diffusion-welded stack is presented. Two options of multiplier prototypes are considered: the scheme with external capacitors and the multiplier of the vertical composition using the diode's own capacitance. Oscillograms of input and output signals for both multiplier composition are presented.
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Authors: Oleg Korolkov, Vitalii V. Kozlovski, Alexander A. Lebedev, Raul Land, Natalja Sleptsuk, Jana Toompuu, Toomas Rang
Abstract: We considered the prototype of a SiC Schottky diode Rectifier Bridge made on the basis of commercial SiC Schottky diodes by diffusion welding (DW). Vertical integration for four diode chips in combination with molybdenum electrodes can improve the overall weight and dimensions of the module performance and increase device durability to radiation exposure. Our DW prototype, in contrast to commercial bridges, completely preserved the initial characteristics after irradiation by electrons with an energy of 0.9 MeV and density of 3 x 1016 cm-2
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