Ohmic contact penetration and encroachment in GaAs/AlGaAs and GaAs FETs

作者: H. Goronkin , S. Tehrani , T. Remmel , P.L. Fejes , K.J. Johnston

DOI: 10.1109/16.19927

关键词:

摘要: Hypoeutectic AuGe/Ni ohmic contacts on GaAs and GaAs/AlGaAs were characterized by SEM, TEM, energy dispersive X-ray analysis. The two main components of the contact confirmed to be NiGeAs islands distributed in an Au-Ga alloy. larger more evenly MESFETs than MODFETs. Vertical penetration was impeded but not halted AlGaAs. Since did melt during alloying cycle, there no lateral encroachment observed. >

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