Abstract:Abstract. The temperature dependence of contact resistivity ρ с of Ti-Al-TiB 2 -Au ohmic contacts to n-GaN and effect of microwave treatment on ρ с are investigated. The obtained dependences are described using a model of current flow via metal shunts associated with dislocations, the current being limited by diffusion supply of electrons. It is shown that microwave treatment increases the dislocation density in the near-contact region of contact structure and reduces the relative spread of resistivity values … Show more
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