GaAs OHMIC CONTACTS FOR HIGH TEMPERATURE DEVICES.
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abstract
As a part of a program to develop high temperature compound semiconductor devices, four basic ohmic contact systems for n-type GaAs have been evaluated for contact resistance as a function of temperature (24-350 degree C) and time (at 300 degree C): Ni/AuGe; Ag/Si and Ag/Ni/Si; Al/Ge and Al/AlGe; and Au/Nb/Si and Pt/Nb/Si.