Chapter 4. Basic Failure Modes and Mechanisms - NASA
is intended as a Au- and Ga-diffusion barrier. Some other materials such as Cr, Ag, Pt, Ta, and Ti have been used as barrier materials with varying degrees of success. The activation energy associated with ohmic contact degradation varies between 0.5 eV and 1.8 eV [7,8]. This activation energy may provide reasonable contact life at low operating
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I. GaAs Material Properties
parts.jpl.nasa.govMobility is an important parameter for carrier transport because it describes how strongly the motion of an electron is influenced by an applied electric field. From the equation above, it is evident that mobility is related directly to the mean free time ... The resistivity of the semiconductor can be controlled by
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